Lithium-ion Battery Wholesale Archives

Why a 36V 100Ah PVC Pack Battery Is Transforming Outdoor Agricultural Robots

In the fast-evolving world of agricultural technology, power solutions are becoming just as critical as robotics and AI themselves. Farmers demand energy systems that are safe, durable, and capable of withstanding harsh outdoor conditions. Himax, a leading innovator in custom lithium battery pack solutions, has introduced a breakthrough product — a 36V 100Ah PVC pack battery tailored specifically for agricultural robots. Designed to function reliably between -20℃ and 60℃, the battery demonstrates how the right combination of engineering, materials, and smart communication features can redefine outdoor farming applications.

How Agricultural Robots Depend on Reliable Energy

Agricultural robots are no longer a futuristic concept; they are working in fields worldwide, handling tasks such as weeding, spraying, planting, and harvesting. However, the efficiency of these machines depends heavily on the performance of their batteries. Standard power packs are often challenged by demanding field conditions: dust, moisture, fluctuating temperatures, and physical impact.

This is where the 36V 100Ah PVC pack battery stands out. Not only does it provide the large energy capacity needed for extended field operations, but it also integrates protective features that ensure safe and consistent performance. In agricultural settings, reliability is not optional; it is the very foundation of productivity. Himax understood this reality and engineered a product to match.

Why the 36V 100Ah Battery Is a Game-Changer

The new Himax PVC battery introduces several innovations that directly address challenges faced by agricultural robots:

Temperature Tolerance:
Farmers work in diverse climates, from frosty winters to scorching summers. The battery’s operational range of -20℃ to 60℃ ensures that robots never face downtime due to weather. This wide range also extends the battery’s appeal to global markets, from Northern Europe to Middle Eastern deserts.

LED Display for Real-Time Monitoring:
A built-in LED display gives operators instant insight into the state of charge and performance. For farmers working long hours, this removes the guesswork, providing confidence that the machine will finish its task before recharge.

CAN BUS Communication:
In modern robotics, data communication is vital. The battery supports CAN BUS protocol, allowing seamless integration with robot control systems. This enables features such as predictive maintenance, accurate battery health reporting, and performance optimization during heavy workloads.

Thermistor Protection:
Overheating is a frequent risk in outdoor environments, especially under heavy mechanical loads. The battery includes thermistors to continuously monitor internal temperature, ensuring that the system can prevent damage before it happens.

Epoxy Board Reinforcement:
Perhaps one of the most innovative design choices is the inclusion of an epoxy board around the battery cells. This extra layer acts as structural armor, preventing cell damage if the outer PVC layer cracks. Given the rugged terrain where agricultural robots operate, this protective barrier is essential for long service life.

How Himax Balanced Safety and Practicality

Designing a battery for agricultural robotics is about striking the right balance between energy density, safety, and durability. Himax engineers applied their extensive experience in lithium battery pack customization to solve real-world issues:

The 36V nominal voltage offers a sweet spot for powering motors and robotic actuators while keeping energy efficiency high.

The 100Ah capacity ensures that machines can run for extended periods without frequent recharging, a vital feature for productivity in large farmlands.

The use of PVC housing provides lightweight protection, while the epoxy reinforcement ensures additional robustness against mechanical shock.

By embedding smart communication protocols and monitoring sensors, Himax positioned the battery not only as an energy storage unit but also as a smart energy management system.

This approach is a direct reflection of Himax’s philosophy: batteries should not simply store energy; they should actively contribute to the safety, intelligence, and efficiency of the systems they power.

Why Farmers and Robotics Companies Should Care

The agricultural industry is undergoing a profound transformation. Labor shortages, rising operational costs, and climate change are pushing farms to adopt smarter technologies. Robotic systems are leading the way, but without reliable power, these machines risk underperforming or failing in the field.

By offering robust outdoor usability, intelligent monitoring, and integrated communication, Himax’s 36V 100Ah PVC pack battery solves one of the most pressing challenges: how to ensure robots work continuously in unpredictable environments. This makes the battery an attractive solution not only for agricultural robots but also for outdoor drones, autonomous vehicles, and mobile industrial systems.

Furthermore, by extending service life and preventing costly failures, the battery directly supports farmers’ bottom lines. Reduced maintenance costs and improved reliability translate into higher return on investment for robotic deployments.

How Safety Innovations Drive Market Confidence

The addition of epoxy boards to guard against PVC damage is more than a technical improvement — it represents Himax’s commitment to proactive safety. While many batteries rely solely on casing materials for protection, Himax anticipated real-world scenarios: robots hitting rocks, machines tipping over, or external impacts in the field. By anticipating failure points, the company provided a solution that builds trust among robotics manufacturers and end users alike.

Equally important, the CAN BUS integration ensures compliance with advanced robotics standards, where interoperability and data-driven insights are increasingly valued. This future-proofs the battery, allowing it to integrate seamlessly with evolving agricultural technologies.

Looking Toward the Future of Agricultural Robotics

The launch of the 36V 100Ah PVC battery signals more than just a new product release. It highlights how specialized energy solutions can directly drive innovation in agriculture. As farms around the world adopt autonomous robots to increase efficiency and reduce dependence on human labor, the demand for durable, intelligent, and safe batteries will only grow.

Himax is positioning itself at the forefront of this shift. By continuously investing in custom pack design, advanced protection systems, and integrated communication technologies, the company is not just supplying batteries — it is powering the future of farming.

Conclusion: Why Himax Leads the Way

The agricultural sector is at a crossroads, where innovation determines competitiveness and sustainability. Reliable energy storage sits at the heart of this transformation. Himax’s 36V 100Ah battery pack, with its ability to withstand extreme temperatures, communicate with robotic systems, and offer robust protection against external damage, provides a benchmark for the industry.

From LED monitoring displays to CAN BUS communication and epoxy reinforcement, every element reflects Himax’s commitment to delivering more than just energy — it delivers confidence, safety, and long-term performance. For robotics developers and farmers alike, this product is a clear answer to the question: Why do the right batteries matter in agriculture?

The answer is simple: because with Himax powering the field, farming’s future looks smarter, safer, and more sustainable.

August 22, 2025

Comparison of Li-ion, LiPO (Lithium Polymer), and LiFePO₄(Lithium Iron Phosphate) batteries advantages and disadvantages.

1. Li-ion (Lithium-ion)

Typically refers to cylindrical (e.g., 18650 li-ion) or prismatic cells using NMC or NCA chemistry.

✅ Advantages:

High energy density → longer run time for given size/weight.

Relatively long cycle life (500–1000+ cycles).

Low self-discharge (~1–2% per month).

Widely available and mature technology.

Stable form factor (especially cylindrical 18650/21700 cells).

❌ Disadvantages:

Thermal runaway risk if punctured or overcharged.

Needs precise BMS protection to ensure safety.

Capacity drops in high temperature or over time.

2. LiPo (Lithium Polymer)

A subset of Li-ion using a gel-like electrolyte, typically found in soft pouch cells.

✅ Advantages:

Very lightweight and thin, excellent for drones, RC, and custom-fit designs.

High discharge rates (C-rate) – great for burst power.

Flexible shapes/sizes available.

❌ Disadvantages:

Less mechanically stable – more prone to swelling and damage.

Shorter cycle life (300–500 cycles) compared to cylindrical Li-ion.

High risk of fire if punctured or improperly charged.

Requires very careful charging (must use a LiPo charger with balance).

3. LiFePO₄ (Lithium Iron Phosphate)

Known for high safety and longevity, commonly used in solar, UPS, and EV applications.

✅ Advantages:

Extremely long cycle life (2000–5000+ cycles).

Very safe – no thermal runaway or fire under normal conditions.

Wide temperature tolerance.

Flat voltage curve → consistent power output.

Environmentally friendlier than cobalt-based cells.

❌ Disadvantages:

Lower energy density (~90–120 Wh/kg) → larger and heavier for same capacity.

More expensive per Wh in some cases (though decreasing).

Lower voltage per cell (3.2 V nominal vs 3.7 V for Li-ion) → may require more cells in series.

Battery Technology Comparison Table

Feature	Li-ion	LiPO (Lithium Polymer)	LiFePO₄ (Lithium Iron Phosphate)
Nominal Voltage	3.6–3.7 V	3.7 V	3.2 V
Specific Energy Density	180–250 Wh/kg	130–200 Wh/kg	90–140 Wh/kg
Volumetric Energy Density	400–700 Wh/L	300–500 Wh/L	220–350 Wh/L
Cycle Life	500–1000+	300–500	2000–5000+
Discharge Rate (C-rate)	Moderate (1C–5C typical,some up to 8C)	High (up to 50C)	Moderate (1C–3C, some up to 10C)
Weight/Size Efficiency	compact, cylindrical	thin, flexible	bulky, heavy
Safety	Moderate (needs BMS)	Low (swelling, fire risk if damaged)	Very High (thermally stable)
Temperature Tolerance	0°C to 45°C	0°C to 40°C	-20°C to 60°C
Form Factor	Cylindrical / prismatic	Flexible pouch	Cylindrical / prismatic
Self-Discharge Rate	~2%/month	~5%/month	~3%/month
Best Use Cases	Consumer electronics, tools	Drones, RC, wearables	Solar, EVs, UPS, storage

Energy Density Comparison (Chart)

Battery Type	Wh/kg (Energy/Weight)	Wh/L (Energy/Volume)
Li-ion	180–250 Wh/kg	400–700 Wh/L
LiPO	130–200 Wh/kg	300–500 Wh/L
LiFePO₄	90–140 Wh/kg	220–350 Wh/L

Li-ion: Best balance of size and energy → great for compact applications

LiPo: Light and high-power burst, but less dense and less safe

LiFePO₄: Bulky, but ultra-long life and very safe

August 21, 2025

Lithium-ion Battery Wholesale, News

Why “Overcharged-Low Discharge” and “Undercharged-High Discharge” Happen in Lithium Battery Packs

high-quality-18650-battery-holder-materials

In the real-world application of lithium-ion battery packs, performance issues like overcharged-low discharge and undercharged-high discharge are common causes of customer complaints. These phenomena can severely impact the performance evaluation, safety, and overall user experience of battery systems.

This article aims to break down these two issues in simple, professional terms — explaining their symptoms, root causes, potential risks, and possible solutions. Whether you’re a battery designer, manufacturer, or end-user, this guide can help you better understand and manage these challenges.

1. The Overcharged-Low Discharge Issue: Hidden Capacity Loss and Safety Risks

What Is Overcharged-Low Discharge?

The term overcharged-low discharge refers to a mismatch between the battery pack’s charging and discharging capacity. For example, a pack rated at 100Ah may appear to charge up to 105Ah, but during discharge, it only delivers 95Ah. This leads to confusion about the battery’s actual capacity and performance.

What Causes It?

There are several technical reasons behind this issue:

Inconsistent Cell Aging: In a multi-cell battery pack, not all cells age at the same rate. Some cells degrade faster due to manufacturing differences or usage conditions. During charging, weaker cells reach their maximum voltage sooner, causing the Battery Management System (BMS) to halt charging to prevent overcharging — even though other cells are not fully charged. During discharge, these weaker cells also drop voltage faster, again prompting the BMS to stop discharging early.

Internal Resistance Differences: Cells with higher internal resistance show a faster voltage rise during charging and a quicker drop during discharging. This leads to misleading voltage readings that cause early cutoffs by the BMS.

Uneven Temperature Distribution: Cells operating in cooler areas of the pack show reduced electrochemical activity, which limits their ability to charge or discharge fully. These cells become bottlenecks, reducing the usable capacity of the entire pack.

What Are the Risks?

Misleading Capacity Indications: Users may believe the battery has more capacity than it can safely deliver.

Accelerated Aging: Cells that are frequently undercharged or prematurely stopped during charge/discharge cycles age more quickly.

Safety Hazards: In extreme cases, deep discharge of weak cells can lead to lithium plating or thermal runaway — a dangerous safety concern.

2. The Undercharged-High Discharge Issue: Algorithm Errors and Temperature Effects

What Is Undercharged-High Discharge?

This is a phenomenon where a battery appears to charge less than its rated capacity but releases more during discharge. For instance, it might charge to 95Ah but discharge 98Ah. This seems counterintuitive but is observed in many battery pack applications.

What Causes It?

BMS Calibration Errors: The BMS may inaccurately estimate the battery’s state of charge (SOC), leading to an early stop during charging or extended discharging.

Low-Temperature Charging: In cold environments, lithium-ion mobility is reduced, decreasing charge acceptance. However, when the temperature rises during discharging, the cells can perform normally, appearing to release more energy than they received.

Balancing Circuit Interference: During charging, passive balancing circuits may drain energy from higher-voltage cells to equalize the pack, lowering the total reported charge.

What Are the Risks?

Unnecessary Service Complaints: Users may believe the battery did not charge properly and request service or replacement.

Over-Discharge Risk: The battery may discharge below safe limits due to inaccurate SOC readings.

Structural Damage to Electrodes: Repeated over-discharge or undercharge can degrade the internal structure of the battery cells, shortening lifespan.

3. The Root Cause: Inconsistency Among Cells

At the core of both problems is one major factor: cell inconsistency. Variations between individual cells lead to imbalances during both charging and discharging. These inconsistencies stem from three main areas:

Manufacturing Variability: Even small differences in electrode coating thickness or electrolyte saturation can result in performance variation between cells.

Uneven Usage Conditions: Non-uniform heat distribution, differing current paths, and environmental conditions cause individual cells to age at different rates.

Diverging Aging Speeds: Some cells may deteriorate faster due to localized overheating, repeated overcharge/discharge cycles, or physical stress.

4. Effective Solutions: From Design to Intelligent Management

Addressing these problems requires a multi-pronged strategy from the initial cell selection to long-term system management.

Cell Grading and Grouping

Before assembling the pack, cells should be sorted based on their capacity, internal resistance, and self-discharge rate. Grouping closely matched cells reduces imbalance and improves the performance of the entire pack.

Advanced Balancing Technologies

Active Balancing: Transfers energy from higher-voltage cells to lower-voltage ones using inductors or capacitors. This improves pack efficiency but increases system complexity and cost.

Passive Balancing: Uses resistors to bleed excess energy from stronger cells. While simpler and cheaper, it wastes energy and is less efficient.

Smarter BMS Algorithms

Combine Coulomb Counting (Ah integration) with Open Circuit Voltage (OCV) methods for more accurate SOC estimations.

Monitor individual cell voltages and temperatures in real time, and trigger balancing actions if the voltage gap exceeds set thresholds (e.g., >0.3V).

Better Thermal Management

Use liquid cooling or forced air systems to maintain a uniform temperature across all cells.

Avoid localized hotspots or cold zones that can accelerate aging or reduce performance.

5. Conclusion: Focus on Consistency, Intelligence, and Control

The overcharged-low discharge scenario often indicates the presence of weak cells that limit the overall capacity and raise safety concerns. The undercharged-high discharge issue is usually linked to BMS miscalibration or environmental factors like low temperature.

Ultimately, both issues can be traced back to inconsistencies between individual cells. The best long-term solution lies in:

Careful matching of cells at the factory,

Applying dynamic balancing methods, and

Employing smart BMS algorithms with real-time monitoring.

As lithium-ion battery packs technologies evolve, advanced sorting equipment, AI-powered BMS systems, and efficient thermal designs will become key tools in minimizing these customer complaints and maximizing battery performance.

By implementing these strategies, manufacturers can build safer, longer-lasting, and more reliable lithium-ion battery packs — delivering real value to customers in today’s increasingly electrified world.

Reference: “Why Do Battery Packs Show Overcharged-Low Discharge and Undercharged-High Discharge?” by Buyan (Original article in Chinese).

July 23, 2025

Lithium-ion Battery Wholesale, News

How HiMASSi 18650 3.7V 2000-3500mAh Lithium-Ion Batteries Enhance Smart Lock Performance

In the era of smart homes, intelligent door locks have become a cornerstone of security and convenience. A critical component ensuring their reliability is the power source—specifically, high-performance lithium-ion batteries. HiMASSi 18650 3.7V 2000-3500mAh lithium-ion batteries, produced by Shenzhen Himax Electronics Co., Ltd., provide a stable and long-lasting power supply for smart locks. This article explores why these batteries are an optimal choice and addresses common challenges in smart lock applications.

Why Choose HiMASSi 18650 3.7V 2000-3500mAh for Smart Locks?

1. High Energy Density for Extended Usage

Smart locks require consistent power to maintain wireless connectivity, biometric recognition, and remote access features. The HiMASSi 18650 battery offers 2000-3500mAh capacity, ensuring months of uninterrupted operation. Its 3.7V voltage matches the power demands of most smart lock systems, reducing energy waste.

2. Enhanced Safety Features

Unlike low-quality alternatives, HiMASSi batteries incorporate:

Overcharge & Over-discharge Protection – Prevents damage from voltage fluctuations.

Thermal Stability – Minimizes risks of overheating, crucial for always-on devices.

Short-Circuit Prevention – Ensures safe operation even in faulty wiring scenarios.

3. Long Cycle Life & Cost Efficiency

With 500+ charge cycles, these batteries outlast standard alkaline cells, reducing replacement frequency. This makes them a cost-effective solution for both residential and commercial smart lock installations.

Common Challenges & Solutions for 18650 Batteries in Smart Locks

While 18650 lithium-ion batteries are reliable, certain issues may arise in smart lock applications:

1. Problem: Voltage Drop in Low Temperatures

Issue: Lithium-ion batteries may experience reduced efficiency in cold environments (<0°C), leading to temporary power loss.

Solution: HiMASSi batteries use low-temperature-resistant electrolytes, maintaining stable discharge rates even in harsh climates.

2. Problem: Battery Drain Due to Frequent Connectivity

Issue: Smart locks with Wi-Fi/Bluetooth drain power faster when constantly syncing with apps.

Solution: Opt for higher-capacity 3500mAh variants or integrate energy-saving modes in lock firmware.

3. Problem: Swelling After Long-Term Use

Issue: Poor-quality Li-ion cells may swell due to internal degradation.

Solution: HiMASSi batteries employ premium electrode materials to delay aging. Regular maintenance (e.g., annual replacements) further mitigates risks.

4. Problem: Incompatibility with Some Smart Lock Models

Issue: Certain locks require specific battery dimensions or connectors.

Solution: Verify the 18650 size (18mm diameter, 65mm length) and voltage (3.7V) compatibility before installation.

Conclusion: A Reliable Power Partner for Smart Security

The HiMASSi 18650 3.7V 2000-3500mAh lithium-ion battery stands out as a durable, safe, and high-capacity choice for smart locks. By addressing common pain points like temperature sensitivity and energy drain, Shenzhen Himax Electronics Co., Ltd. ensures seamless performance for modern security systems.

July 10, 2025

Lithium-ion Battery Wholesale, News

Why Lithium Batteries Are the Ideal Power Source for Solar-Powered Surveillance Systems

As security becomes a greater concern in both urban and rural environments, solar-powered surveillance systems are emerging as a practical solution for remote monitoring. These systems are widely used in farms, parking lots, construction sites, and other off-grid areas where power access is limited. A critical component of every solar-powered surveillance system is its energy storage—and that’s where lithium batteries come in.

At Himax Electronics Co., Ltd., we specialize in the development and supply of custom lithium battery packs for solar monitoring systems. Our clients across North America, Europe, and Australia rely on us for dependable battery solutions that ensure stable performance in various outdoor conditions. But why are lithium batteries such a perfect fit for these systems? This article explores the key reasons and technical advantages in simple, clear terms.

1. Reliable Power Storage for Day and Night Operation

One of the main challenges of solar-powered equipment is energy fluctuation. While the sun can generate power during the day, the surveillance system still needs to operate at night or during cloudy weather. This is where a dependable battery becomes essential.

Lithium batteries, especially LiFePO4 (Lithium Iron Phosphate) types, are known for their high energy density and stable voltage output. They can store enough power during the day to keep the camera and communication systems running all night. Compared to lead-acid or NiMH batteries, lithium batteries can deliver consistent voltage over longer periods, ensuring uninterrupted surveillance.

At Himax, our most popular battery configurations for solar monitoring systems include:

3.7V 10Ah Li-ion battery packs

12V 20Ah or 50Ah LiFePO4 battery packs

25.2V 15Ah Li-ion battery packs (21700 cells)

Each pack is custom-made based on your equipment’s voltage, size, and current requirements.

2. Longer Lifespan in Harsh Outdoor Environments

Solar-powered surveillance systems are typically placed outdoors in extreme conditions—ranging from freezing winters to hot summers. This requires a battery that can withstand wide temperature ranges while maintaining performance and safety.

LiFePO4 batteries are especially suitable due to their strong thermal stability and long cycle life. Most Himax LiFePO4 packs operate between -20°C and +60°C, making them reliable even in deserts, mountains, or coastal regions. They also have a life cycle of 2000+ cycles, much longer than traditional lead-acid batteries that degrade after 300–500 cycles.

This long lifespan reduces maintenance needs, saving cost and effort for system owners—especially important in remote installations.

3. Lightweight and Space-Saving Design

When installing surveillance systems on poles or walls, battery weight and size matter. Heavy batteries require stronger mounting and increase installation complexity.

Lithium batteries are much lighter and more compact than lead-acid batteries with the same capacity. This allows the entire solar monitoring system to be smaller, neater, and easier to install.

For example, a 12V 20Ah LiFePO4 battery from Himax weighs around 2.5kg, while a similar-capacity lead-acid battery could weigh over 6kg. This compact design enables manufacturers to offer sleek, integrated camera units with solar panels and batteries all in one.

4. Fast Charging and High Efficiency

Solar-powered systems rely on efficient charging during limited daylight hours. The battery must be able to absorb solar energy quickly and efficiently before sunset.

Lithium batteries have a higher charging efficiency (over 95%) than lead-acid (around 70–80%), which means more solar power is stored in less time. They also support higher charge and discharge rates, making them well-suited for systems with varying power loads such as PTZ (Pan-Tilt-Zoom) cameras, motion sensors, and wireless transmitters.

Himax lithium battery packs come with smart BMS (Battery Management System) that optimizes charging performance while protecting the battery from over-voltage, over-current, and temperature issues.

5. Environmentally Friendly and Safe

More companies and governments are focusing on eco-friendly solutions. Lithium batteries are cleaner and safer than other battery types.

LiFePO4 batteries contain no toxic heavy metals and are easier to recycle. They are also chemically stable, with low risk of explosion or leakage, making them ideal for unattended installations in public or wildlife areas.

6. Smart Customization for Unique Projects

Each surveillance system is different. Some require high-current output, others need compact designs. This is where working with a custom battery manufacturer like Himax adds real value.

We work closely with our clients to design custom battery packs that fit their system’s housing, match voltage and current needs, and include the correct connectors (such as DC5521, XT60, or Molex).

We also support features like:

USB-C charging

Waterproof casing

LED power indicators

Built-in heating for cold climates

This customization allows our customers to launch products faster, reduce design errors, and improve end-user satisfaction.

Conclusion: Himax Powers Smarter, Safer Surveillance

As demand for off-grid security solutions increases, solar-powered surveillance systems are becoming a critical part of infrastructure, agriculture, logistics, and public safety. These systems depend on high-performance batteries to ensure reliability—day and night, summer or winter.

Lithium batteries offer the perfect balance of power, safety, longevity, and efficiency, making them the best energy storage solution for solar surveillance devices. Whether you’re installing a single unit or deploying hundreds across a city or rural area, choosing the right battery is key to system success.

At Himax Electronics Co., Ltd., we help manufacturers and solution providers power their solar security systems with dependable lithium battery packs. With over 13 years of experience in Li-ion and NiMH battery customization, advanced production capabilities, and global export expertise, we’re ready to support your next project.

If you’re looking for a long-term battery partner for solar surveillance systems, contact Himax today. Let’s build smarter security together.

July 9, 2025

Lithium-ion Battery Wholesale, News

Why Lithium Batteries Are the Best Choice for Heated Lunch Boxes

In today’s fast-paced world, convenience and mobility are no longer luxuries—they are expectations. One device that has grown increasingly popular in recent years is the heated lunch box, allowing users to enjoy warm meals anytime and anywhere. From office workers and students to delivery drivers and field engineers, the demand for portable, reliable food-heating solutions continues to rise. Among the various power options available, lithium batteries have emerged as the top choice for this application. At Himax Electronics Co., Ltd., we specialize in providing reliable lithium battery packs tailored to heated lunch box manufacturers worldwide. But why are lithium batteries such a smart fit for this niche product? Let’s explore the reasons in detail.

1. Compact Size and Lightweight Advantage

One of the key selling points of a heated lunch box is its portability. Users expect the device to be easy to carry, especially when used in commuting or outdoor environments. This is where lithium batteries shine.

Lithium-ion and lithium-polymer (LiPo) batteries offer superior energy density compared to traditional battery types like nickel-metal hydride (NiMH) or sealed lead-acid (SLA) batteries. This means more power can be stored in a smaller and lighter package, directly benefiting the design of lunch boxes. Manufacturers can reduce the size and weight of the unit without sacrificing performance.

At Himax, we’ve developed custom lithium battery packs such as 3.7V 5000mAh or 7.4V 4000mAh configurations that are slim and compact enough to fit into small compartments, all while powering a heating element for up to an hour or more.

2. Higher Efficiency and Stable Output

A heated lunch box needs to deliver consistent heating performance, typically using a low-voltage heating plate or ceramic heating element. To do this effectively, the battery must deliver a stable output over the entire discharge cycle.

Lithium batteries are known for their flat discharge curve, which means they can maintain a consistent voltage output until the charge is nearly depleted. This contrasts with NiMH batteries, whose voltage drops more rapidly during use. This consistent power delivery is essential to keep food heated evenly, avoiding cold spots or underperformance.

Moreover, lithium batteries are highly efficient, reducing energy loss during discharge. For users, this translates into faster heating times and longer operating durations, even in compact designs.

3. Fast Charging Capabilities

Nobody wants to wait hours for their lunch box battery to recharge. One of the greatest benefits of lithium battery technology is its fast charging capability.

Lithium batteries typically support 1C charging rates, and with smart Battery Management Systems (BMS), can be safely recharged in 1 to 2 hours depending on capacity. Some advanced models even support USB-C charging, allowing users to top up the battery using power banks, car chargers, or wall adapters.

At Himax, we offer custom charging solutions, integrating protection circuits and smart charging modules that ensure both safety and speed, giving users peace of mind.

4. Longer Lifespan for Daily Use

Heated lunch boxes are often used daily, so battery durability becomes a major consideration. Fortunately, lithium batteries are built for longevity.

Whereas NiMH or SLA batteries may last for a few hundred cycles, LiFePO4 and Li-ion batteries can exceed 800–1000 charge/discharge cycles with proper care. This means the battery will continue to perform well even after a year or two of daily use.

Longer battery life also contributes to lower maintenance costs and a better user experience over time, reducing the need for frequent replacements.

Himax’s lithium battery packs are rigorously tested to meet international safety and durability standards (such as UN38.3, MSDS, CE, and RoHS), ensuring that manufacturers can confidently deliver a product that lasts.

5. Enhanced Safety Features

Safety is critical, especially when combining electricity with food and heat. Lithium battery packs designed for lunch boxes must be robust against overcharging, overheating, and short-circuit risks.

Modern lithium batteries come with built-in Battery Management Systems (BMS), which offer multiple levels of protection:

Overcharge/over-discharge protection

Short circuit protection

Temperature control

Balance charging (in multi-cell configurations)

At Himax, we customize our lithium battery packs with advanced BMS modules tailored to the application, ensuring safe performance in a wide range of environments—including offices, schools, and outdoors.

6. Eco-Friendly and Compliant with Regulations

Consumers are becoming more environmentally conscious, and product regulations are getting stricter worldwide. Compared to older battery chemistries, lithium batteries are more eco-friendly, especially LiFePO4, which contains no toxic heavy metals.

They are easier to recycle, and thanks to their longer lifespan, generate less electronic waste over time. Most importantly, lithium batteries meet the requirements of RoHS, REACH, and UN38.3 transport regulations—essential for global export.

Himax helps manufacturers meet these requirements by providing complete certification documentation, simplifying the compliance process.

Conclusion: Himax Powers a Smarter Lunch Experience

Heated lunch boxes are not just a gadget—they represent a shift toward healthier, more convenient lifestyles. And powering them efficiently and safely is at the core of delivering user satisfaction.

Lithium batteries offer a perfect blend of power, size, reliability, and safety, making them the ideal energy source for this application. Whether it’s rapid heating, compact form factors, or long battery life, lithium technology checks all the boxes.

At Himax Electronics Co., Ltd., we bring over 13 years of experience in customizing Lithium and NiMH battery packs for global B2B clients. Our batteries power not only lunch boxes but also Bluetooth devices, medical tools, and portable lighting systems.

If you’re a manufacturer of heated lunch boxes looking for a reliable battery partner, contact Himax today—we’re ready to help you bring innovation and power into the hands of your customers.

July 9, 2025

Lithium-ion Battery Wholesale, News

What to Pay Attention to When Using Li-ion 18650 Battery Packs in Security Systems

Security systems—whether for homes, businesses, or industrial facilities—rely heavily on uninterrupted power to keep surveillance and alarm equipment operational. Li-ion 18650 battery packs have become the preferred power source due to their high energy density, long cycle life, and compact form factor. However, like all advanced technologies, they require proper handling and integration to perform safely and effectively.

At HIMAX Electronics, we specialize in designing and assembling high-performance Li-ion battery packs tailored for critical applications like security systems. In this article, we’ll outline the key points you need to pay attention to when using 18650 lithium-ion battery packs in your security solutions.

1. Battery Pack Design and Configuration

Each security system has different power demands based on camera quantity, data transmission, and backup requirements. Choosing the right series-parallel configuration of 18650 cells is essential:

Voltage Requirements:Most systems run on 12V or 24V, which means using a 3S or 7S configuration respectively.
Capacity and Runtime:Evaluate the amp-hour rating needed to keep your system running during outages. HIMAX Electronics offers custom 18650 packs up to 20Ah or more for extended runtime.

Tip: Always balance power requirements with physical space availability in enclosures.

2. Incorporation of a Smart Battery Management System (BMS)

A high-quality BMS is non-negotiable for safety and performance. HIMAX Electronics integrates intelligent BMS modules into every 18650 pack we produce to:

Prevent overcharging, overdischarging, and short circuits
Enable cell balancing to maximize lifespan
Support communication protocols (UART, CAN, SMBus) for remote monitoring

Important: Never use a pack without a properly rated BMS—doing so can risk fire or permanent system damage.

3. Thermal Management and Placement

Security systems often operate in confined, weatherproof enclosures or attics where heat buildup is an issue. 18650 batteries are sensitive to high temperatures.

Ideal Operating Temperature:0°C to 45°C (charge), -20°C to 60°C (discharge)
Avoid placing packs near heat-generating electronics or under direct sunlight
Consider passive or active cooling methods for high-load systems

HIMAX Electronics also offers temperature-sensor integrated BMS for enhanced safety shutdowns.

4. Regular Maintenance and Monitoring

Even the best 18650 packs degrade over time. Set up routine inspection and software-based battery health monitoring to detect:

Voltage imbalance between cells
Capacity fade
Abnormal charging/discharging rates

Some HIMAX smart packs include app or PC software interfaces to allow real-time diagnostics.

5. Storage and Backup Power Readiness

Security systems must be ready 24/7—even after weeks or months of low activity. Ensure:

Packs are stored at 40–60% state of charge if unused for long periods
Recharge every 3–6 months to avoid deep discharge
Always test the system’s backup runtime quarterly

HIMAX Electronics uses low self-discharge cells and industrial-grade assembly to maintain long-term stability in standby mode.

6. Certifications and Compliance

Security systems often fall under building safety regulations. Use certified batteries to ensure regulatory compliance:

3 for transportation
IEC62133 for safety
CE/RoHS for environmental compliance

HIMAX Electronics ensures every battery pack complies with international standards, helping integrators and installers pass inspections with confidence.

Conclusion

Using Li-ion 18650 battery packs in security systems offers outstanding benefits—but only when properly designed, integrated, and maintained. At HIMAX Electronics, we understand the critical importance of reliability in life-safety systems. That’s why we engineer our battery packs with precision, safety, and long-term performance in mind.

For custom battery solutions tailored to your security system’s requirements, contact HIMAX Electronics today. Our engineers are ready to help you power your peace of mind.

July 7, 2025

Li-Polymer Battery, Lithium-ion Battery Wholesale, News

The Best Batteries for Portable Gas Detectors: Why Li-Polymer and 18650 Cells Are Ideal Choices

Introduction to Portable Gas Detectors

Portable gas detectors are essential safety devices widely used across various industries including oil & gas, mining, chemical plants, laboratories, and manufacturing facilities. These compact, handheld instruments continuously monitor the surrounding air for the presence of hazardous gases such as carbon monoxide (CO), hydrogen sulfide (H2S), oxygen (O2), methane (CH4), and volatile organic compounds (VOCs).

By providing real-time gas concentration data, portable gas detectors help protect workers from toxic exposure, prevent explosions, and ensure compliance with safety regulations. As these devices are used in potentially hazardous and remote environments, they rely heavily on high-performance, reliable, and safe power sources.

As a battery manufacturer with over 12 years of experience, HIMAX ELECTRONICS understands the critical role batteries play in the performance and safety of portable gas detectors. In this article, we will explore the types of batteries commonly used in these devices, and explain why our Li-Polymer (LiPo) and 18650 Li-ion batteries are optimal choices.

What Types of Batteries Are Used in Portable Gas Detectors?

The battery is a crucial component in portable gas detectors because these devices are often used in field operations where continuous and reliable power is essential. The following table summarizes the most common battery types used in gas detection equipment:

Battery Type	Features	Limitations
Alkaline	Low cost, widely available	Non-rechargeable, short lifespan, environmental waste
NiMH (Nickel-Metal Hydride)	Rechargeable, moderate cost	Lower energy density, self-discharge issues
Li-ion (Lithium-Ion, including 18650 cells)	High energy density, long cycle life, lightweight	Requires safety circuits, higher initial cost
Li-Polymer (LiPo)	Flexible shapes and sizes, high safety, high energy density	Slightly more expensive than cylindrical cells

In recent years, rechargeable lithium-based batteries (both Li-ion 18650 and Li-Polymer) have become the preferred choice for most modern portable gas detectors due to their superior performance and safety characteristics.

Why Li-Polymer and 18650 Li-ion Batteries Are Ideal for Portable Gas Detectors

1. High Energy Density and Long Runtime

Portable gas detectors often operate for extended periods, sometimes 8-12 hours per shift or continuously for days in industrial environments. Batteries with high energy density ensure the device remains operational without frequent recharging or battery replacement.

Battery Type	Energy Density (Wh/kg)
Alkaline	~100
NiMH	~60-120
Li-ion 18650	~150-260
Li-Polymer	~200-300

As shown, Li-Polymer and 18650 Li-ion batteries offer significantly higher energy density compared to traditional chemistries. This translates into longer operating hours and reduced downtime.

2. Rechargeable and Eco-Friendly

Rechargeable batteries not only reduce long-term costs but also minimize environmental waste compared to disposable batteries. Both Li-Polymer and 18650 Li-ion batteries can handle hundreds to thousands of charge-discharge cycles, making them highly sustainable.

Battery Type	Typical Cycle Life
Alkaline	Single-use
NiMH	300-500 cycles
Li-ion 18650	500-1000 cycles
Li-Polymer	500-1200 cycles

3. Compact Size and Flexible Design

Portable gas detectors need to be lightweight, compact, and ergonomic. Li-Polymer batteries offer excellent design flexibility since they can be customized into various shapes and sizes to fit specific device dimensions.

Battery Type	Shape Flexibility
Alkaline	Fixed shapes
NiMH	Cylindrical only
Li-ion 18650	Cylindrical only
Li-Polymer	Customizable shapes

This flexibility allows OEM manufacturers to design slim, handheld devices without compromising battery capacity.

4. High Safety Standards

Safety is paramount for devices operating in potentially explosive environments. Modern Li-Polymer and 18650 Li-ion batteries are equipped with multiple safety mechanisms including:

Overcharge protection
Over-discharge protection
Short-circuit protection
Thermal protection

At HIMAX ELECTRONICS, our batteries undergo rigorous aging equipment tests, automatic welding, and comprehensive quality control to ensure maximum safety and reliability for industrial applications.

5. Reliable Performance in Extreme Conditions

Industrial environments often expose equipment to wide temperature ranges. Our lithium batteries are engineered to perform consistently under extreme conditions.

Battery Type	Operating Temperature Range
Li-ion 18650	-20°C to +60°C
Li-Polymer	-20°C to +60°C

This temperature tolerance ensures reliable performance whether used in hot factories or cold outdoor operations.

HIMAX ELECTRONICS: Your Reliable Battery Manufacturer for Portable Gas Detectors

At HIMAX ELECTRONICS, we specialize in manufacturing high-quality rechargeable batteries with over 13 years of industry experience. Our factory is equipped with advanced production lines, automatic welding machines, and state-of-the-art aging and testing equipment to ensure consistent quality and safety.

Our Key Battery Products for Portable Gas Detectors

Battery Model	Type	Voltage	Capacity	Features
HIMAX 18650 3.7V 2600mAh	Li-ion 18650	3.7V	2600mAh	High energy density, long cycle life, stable output
HIMAX 18650 3.7V 3400mAh	Li-ion 18650	3.7V	3400mAh	Higher capacity for longer runtime
HIMAX LP503759	Li-Polymer	3.7V	1200mAh	Ultra-slim design for compact devices
HIMAX LP803860	Li-Polymer	3.7V	2000mAh	High capacity in a thin profile

Why Choose HIMAX ELECTRONICS as Your Battery Partner?

Factory-direct supplywith competitive pricing
Fully customized battery solutions to fit your device design
Strict quality control with professional testing equipment
Compliance with international safety certifications (UL, CE, UN38.3, RoHS)
Fast delivery and flexible production capacity

Conclusion

Choosing the right battery for your portable gas detector is critical to ensure safety, reliability, and cost-efficiency. Both Li-Polymer and 18650 Li-ion batteries offer superior advantages in terms of energy density, rechargeability, safety, and design flexibility.

As a battery manufacturer with extensive experience, HIMAX ELECTRONICS is your trusted partner for high-quality, factory-direct battery solutions tailored for portable gas detection equipment. Contact us today to discuss your specific requirements and receive a customized battery proposal.

June 20, 2025

Li-Polymer Battery, Lithium-ion Battery Wholesale, News

How HiMASSi Custom Lithium Batteries Power Industrial Sensor Nodes with Unmatched Efficiency

In the rapidly evolving world of industrial automation, reliable power solutions are critical for seamless operations. HiMASSi Custom Lithium Batteries, developed by Shenzhen Himax Electronics Co., Ltd., are engineered to meet the demanding power requirements of industrial sensor nodes, ensuring long-lasting performance, stability, and adaptability in harsh environments.

Why Industrial Sensor Nodes Need Advanced Battery Solutions

Industrial sensor networks are the backbone of smart manufacturing, predictive maintenance, and IoT-enabled systems. These sensors monitor parameters like temperature, pressure, vibration, and humidity, transmitting data in real time. However, their effectiveness depends on a stable and durable power supply. Traditional batteries often fail due to:

Limited lifespan in extreme conditions

Inconsistent voltage output affecting data accuracy

High maintenance costs from frequent replacements

HiMASSi’s custom lithium batteries overcome these challenges with high energy density, low self-discharge, and robust thermal stability, making them ideal for industrial IoT (IIoT) applications.

Key Advantages of HiMASSi Custom Lithium Batteries for Sensor Nodes

Feature	Benefit
High Energy Density	Longer runtime, reducing replacement frequency
Wide Temperature Range	Stable performance from -20°C to 60°C
Low Self-Discharge	Retains charge for extended periods, ideal for remote sensors
Customizable Sizes	Fits compact sensor designs without compromising capacity
Enhanced Safety	Built-in protection against overcharge, short-circuit, and thermal runaway

Applications in Industrial IoT (IIoT)

HiMASSi batteries are widely used in:
✔ Wireless sensor networks (WSNs) for factory automation
✔ Condition monitoring systems in oil & gas, mining, and energy sectors
✔ Smart agriculture sensors requiring long-term outdoor deployment
✔ Asset tracking devices in logistics and supply chain management

Future Trends: Smart Batteries for Smarter Factories

As Industry 4.0 advances, the demand for intelligent power solutions grows. HiMASSi is innovating with battery management systems (BMS) that enable:

Remote monitoring of battery health

Predictive maintenance alerts to prevent downtime

Energy harvesting compatibility for sustainable operations

Conclusion

HiMASSi Custom Lithium Batteries provide reliable, high-performance power for industrial sensor nodes, ensuring seamless data collection and transmission in challenging environments. With customization options, superior safety, and extended lifespan, they are the preferred choice for IIoT and smart industry applications.

June 20, 2025

LifePO4 Battery, Lithium-ion Battery Wholesale, News

Why Do Cordless Handheld Vacuum Cleaners Prefer Lithium Batteries?

deep-cycle-12v-24v-48v-lifepo4-battery-pack

In recent years, cordless handheld vacuums have become a must-have appliance for modern households, offering unmatched convenience and powerful cleaning performance. A key factor behind their success is the adoption of lithium battery technology, which provides high energy density, fast charging, and long-lasting power. At Himax, we specialize in custom lithium battery solutions, including high-performance 24V 3Ah Li-ion battery packs, designed to enhance the efficiency and durability of cleaning devices. This article explores why lithium batteries dominate the handheld vacuum market and how advanced power solutions are shaping the future of home cleaning.

1.High Energy Density for Lightweight Design

One of the biggest advantages of lithium batteries is their high energy density. Compared to traditional nickel-metal hydride (NiMH) or lead-acid batteries, lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries store more power in a smaller, lighter package.

Weight Reduction: A typical 18650 Li-ion cell (used in brands like Dyson) offers 200-250Wh/kg, allowing vacuums to weigh under 2kg while maintaining strong suction.

Compact Size: Lithium batteries enable slim and ergonomic designs, making handheld vacuums easier to maneuver.

Himax Insight: Our 24V 3Ah custom Li-ion battery pack is optimized for handheld vacuums, delivering 72Wh of energy in a compact form factor—perfect for balancing power and portability.

2.High Discharge Rate for Consistent Suction Power

Handheld vacuums require instant high-power bursts to maintain strong suction, especially when dealing with deep-cleaning tasks.

3C-5C Discharge Capability: Lithium batteries can deliver high current without voltage drops, ensuring stable performance.

No Memory Effect: Unlike NiMH batteries, lithium batteries do not lose capacity if charged before being fully depleted.

A 24V 3Ah Li-ion pack can support 9A continuous discharge, making it ideal for vacuums with 150W+ motors.

3.Fast Charging & Longer Lifespan of Lithium Battery

Consumers demand quick recharge times and durability—both areas where lithium batteries excel.

1-2 Hour Charging: Many modern vacuums (e.g., Tineco, Shark) support fast charging, reducing downtime.

500-1000+ Cycles: Premium lithium cells (Samsung, LG) retain 80% capacity even after years of use.

Our 24V 3Ah battery integrates smart BMS (Battery Management System), preventing overcharge/over-discharge and extending lifespan.

4.Eco-Friendly & Future-Ready of Lithium Battery

With increasing environmental regulations, lithium batteries are the cleaner choice:

No Toxic Metals: Unlike NiCd batteries, lithium-ion is RoHS-compliant.

Recyclable: Major brands (like Dyson) now offer battery recycling programs.

Industry Trend: Solid-state lithium batteries (under development) may further improve safety and energy density.

Conclusion: The Future of Handheld Vacuums Relies on Lithium Battery Power

Lithium batteries have revolutionized cordless vacuum cleaners by offering lightweight design, high power output, fast charging, and long life. As technology advances, we can expect even more efficient and sustainable battery solutions.

At Himax, we provide custom lithium battery packs (like our 24V 3Ah model) tailored for vacuum manufacturers, ensuring optimal performance, safety, and cost-efficiency. Whether you’re developing a new cleaning device or upgrading an existing model, our engineering team can help you find the perfect power solution.

June 19, 2025