Powering the Depths: HIMAX Li-ion and LiFePO4 Batteries for Underwater Equipment
In the world of underwater technology, having a reliable, durable, and safe power source is non-negotiable. HIMAX ELECTRONICS, a professional rechargeable battery manufacturer with over 12 years of experience, provides advanced Li-ion and LiFePO4 batteries solutions tailored for underwater devices such as underwater lighting systems, communication and navigation equipment, smart dive computers, and diver propulsion vehicles (DPVs).
Whether diving deep into the ocean for exploration or working in marine industrial applications, HIMAX’s batteries are engineered to perform under pressure — literally. This blog explores our Li-ion and LiFePO4 batteries, their applications, advantages, and why HIMAX is the trusted battery factory for global underwater electronics brands.
Why Battery Performance Matters in Underwater Applications
The Challenge of the Deep
Underwater environments pose unique challenges: high pressure, variable temperatures, and complete isolation from traditional power sources. Batteries must not only be powerful and compact but also resistant to water ingress and corrosion.
Applications of Underwater Power Systems
Underwater Lighting Equipment: Requires consistent, high-output energy for extended visibility.
Underwater Communication and Navigation Equipment: Demands reliable power for signal clarity and GPS tracking.
Smart Dive Computers: Needs compact, rechargeable batteries with long runtimes.
Diver Propulsion Vehicles (DPV): Requires high-capacity, high-discharge batteries for motorized operation.
HIMAX Battery Solutions for Underwater Equipment
Overview of Key Battery Models
| Battery Type | Nominal Voltage | Capacity Range | Typical Application |
| LiFePO4 3.2V 6000mAh | 3.2V | 6000mAh | Compact sensors, lighting modules |
| LiFePO4 3.2V 5000mAh | 3.2V | 5000mAh | Buoy communication, small DPVs |
| LiFePO4 24V/48V | 24V / 48V | 20Ah to 100Ah | High-power propulsion systems, industrial marine use |
| Li-ion 12V 5~10Ah | 12V | 5000–10000mAh | Underwater lights, dive computers |
| LiFePO4 12.8V 6Ah | 12.8V | 6000mAh | GPS devices, sonar systems |
Why Choose HIMAX Batteries?
1. Waterproof Performance (IP67 Rated)
All HIMAX batteries used in underwater environments are manufactured with IP67 waterproof sealing, ensuring resistance to water ingress up to 1 meter for 30 minutes.
2. High Safety Standards
Our LiFePO4 (Lithium Iron Phosphate) cells offer superior thermal and chemical stability, making them extremely safe — even in extreme underwater conditions.
3. Customizable Dimensions
As a battery factory, we offer flexible designs tailored to your enclosure needs — from cylindrical packs for handheld dive computers to large-scale blocks for propulsion units.
4. High Cycle Life
LiFePO4 batteries from HIMAX typically exceed 2000 cycles, ensuring long-term reliability and reduced replacement frequency.
5. High Energy Density and Lightweight Design
Our Li-ion battery packs (12V 5Ah~10Ah) combine portability and power — essential for divers and compact underwater robots.
6. Sustainable & Eco-Friendly
HIMAX supports environmental responsibility by offering rechargeable, recyclable battery solutions that reduce electronic waste.
HIMAX’s Manufacturing Advantage
As a professional battery manufacturer, HIMAX operates its own production facilities equipped with:
- Fully automated spot-welding machines
- Precision battery aging and capacity grading equipment
- Rigorous quality control systems
This integrated setup enables us to control every step of the production process — from cell selection to final testing — ensuring top-tier product consistency and performance.
Case Study: Powering a DPV System
A global diving brand recently partnered with HIMAX to design a LiFePO4 48V 50Ah power source for their DPV unit. This battery pack offers:
- Peak discharge of 100A
- IP67 waterproof aluminum casing
- Smart BMS (Battery Management System)integration
- Over 2500 charge cycles
The result: longer underwater travel time, better stability, and higher diver confidence.
Battery Selection Tips for Underwater Equipment
When choosing a battery for underwater use, consider:
- Voltage and capacity needs(match motor/sensor demands)
- Discharge rate(especially for propulsion or high-beam lights)
- Form factor and size(fit within sealed casings)
- Certifications(e.g., CE, UN38.3, MSDS for international transport)
- Operating temperature range(consider cold water diving)
Our engineering team at HIMAX offers one-on-one support to customize the perfect power solution for your underwater projects.
Conclusion
Underwater equipment demands exceptional power solutions — and HIMAX delivers just that. With decades of experience, robust manufacturing capabilities, and a portfolio of Li-ion and LiFePO4 battery solutions, we support diving, marine, and research industries around the world.
Whether you’re developing a next-gen dive computer or a heavy-duty underwater drone, HIMAX is your trusted battery factory partner.
Need a custom battery for your underwater product? Contact HIMAX ELECTRONICS for a quote or engineering consultation.
