12.8V 105Ah Waterproof IP68 Modular Battery Pack
Underwater robots require lightweight, waterproof battery modules to ensure reliable operation. High-performance components—such as thruster motors and sensors—can lead to overheating and voltage drops, particularly under heavy loads.
Our 12.8V 105Ah IP68-rated modular LiFePO₄ (LFP) battery is engineered specifically for underwater robotics, delivering an optimal balance of lightweight design and waterproof durability.
Key features：
- Waterproof IP68 underwater 5M for 3 hours
- Combination: 4S1P,made of 4pcs 3.2V 100Ah LiFePO4 cells
- Waterproof aluminum alloy enclosure and waterproof connector
- Modular design, supports parallel expansion for capacity increase
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 12.8V | 3.2V/Cell |
| 2 | Nominal Capacity | 105Ah | @0.2C |
| 3 | Minimum Capacity | 104Ah | / |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤60mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 14.6V | 3.65V/Cell |
| 7 | Standard Charge Current | 30A | |
| 8 | Max. Charge Current | 30A | |
| 9 | Standard Discharge Current | 30A | |
| 10 | Max. Discharge Current | 30A | |
| 11 | Burst Discharge Current | 100±10A | ≤300ms |
| 12 | Discharge Cut-off Voltage | 10.4V | 2.6V/Cell |
| 13 | Cycle Life | ≥3000 Cycles | Retention: ≥80% |
| 14 | Charge Temperature | -5°C~+60°C | Standard Charge |
| 15 | Discharge Temperature | -30°C ~+60°C | Standard Discharge |
| 16 | Storage Temperature | 0°C~ +35°C | ≤3 Months |
| 0°C~ +25°C | ≤1 year | ||
| 17 | Weight | About 11.8 | kg |
| 18 | Special Request | IP68 | Waterproof lP68 underwater 5M for 3 hours |
12.8V 105Ah LiFePO4 Battery Pack FAQs
Can this battery be used in saltwater conditions?
Yes! The aluminum alloy casing is corrosion-resistant, and the waterproof connectors (IP68-rated) prevent saltwater intrusion.
What is the lifespan of this battery?
The LiFePO4 chemistry provides 3000+ charge cycles (to 80% capacity), significantly outlasting lead-acid or standard lithium-ion batteries. Proper charging (using a compatible BMS) maximizes lifespan.
Can I connect multiple battery packs in series or parallel?
Yes! The modular design allows:
Parallel connection (e.g., 2x 12.8V 105Ah = 12.8V 210Ah) for longer runtime. Series connection (e.g., 4x 12.8V = 51.2V) for higher voltage systems (consult the manufacturer for BMS compatibility).
Does this battery pack support other communication protocols (e.g. CAN bus, UART)?
Yes, the battery includes a high-quality Battery Management System (BMS) for overcharge, over-discharge, short circuit, and temperature protection. We also support optional RS485, CAN, or Bluetooth communication for remote monitoring.
Are customized batteries certified for CE, UN38.3, UL, etc.?
We ensure all custom battery solutions comply with internationally recognized safety standards. Our certifications include UN 38.3, MSDS, CE, RoHS, and UL.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.
