OEM & ODM Baby Products Manufacturing


BATTEWILL Special Battery is a high-performance ultra-low temperature lithium iron phosphate (LiFePO4) battery independently developed by Shenzhen Battewill Technology Co., Ltd., breaking the inherent impression of poor low-temperature performance of traditional LiFePO4 cells. As a professional custom special battery, it realizes direct charge and discharge at ultra-low temperatures without additional heating films or software heating modules, supporting 0.2C direct charging at -30°C and high-rate discharge at -40°C with a measured discharge capacity of over 90% (to 1.5V).
This special battery features an ultra-wide working temperature range of -50°C to 60°C, covering most industrial and outdoor application scenarios, with a maximum continuous discharge rate of 3C and internal resistance ≤20mΩ for stable power output. It is available in customized voltage and capacity designs such as 12.8V 6Ah and 12.8V 12Ah, and is widely applied in outdoor energy storage, two-wheel vehicles, cold chain AGV, HEV start-up, special power supplies and emergency equipment, providing reliable and durable power solutions for various special working conditions.
| Specification Item | IFR26650-3.2V-LT3400 Core Cell | Assembled Battery Pack |
|---|---|---|
| Chemistry System | Lithium Iron Phosphate (LiFePO4) | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 3.2V | 12.8V (6Ah/12Ah) |
| Nominal Capacity | 3400mAh | 6Ah / 12Ah (163Wh for 12Ah) |
| Working Temperature Range | -50°C ~ 60°C | -50°C ~ 60°C |
| Charging Temperature Range | -30°C ~ 45°C | -30°C ~ 45°C |
| Max Continuous Discharge Current | 10A (3C); 0.5C (T≤0°C), 0.2C (T≤-10°C) | Customizable according to demand |
| Max Charging Current | 0.2C (T≤-20°C) | 0.2C (T≤-20°C) |
| Minimum Discharge Voltage | 2.0V (T≥-20°C); 1.5V (T≤-20°C) | Customizable according to demand |
| Internal Resistance | ≤20mΩ | ≤25mΩ |
| Cell Size (D*H) | 26.5mm * 65.7mm (26650) | 272*107*70mm / 115*110*70mm |
| Cell Weight | ≈84g | Customizable according to capacity |
| Low Temperature Discharge Rate | 3C / 5C optional | Customizable |


This BATTEWILL Special Battery is custom-designed for various special working conditions and industrial scenarios, and its main application areas include:
Battewill is a professional manufacturer of customized lithium battery packs, offering reliable power solutions for drones, mobility vehicles, robots, and specialty applications. With factories in Dongguan, offices in Shenzhen and Hong Kong, and after-sales centers in the US, Germany, and Dubai, we serve customers worldwide with high-quality and efficient battery solutions.
We supply LiFePO4 batteries, ternary lithium-ion batteries, and specialty cells for high/low temperature or military-grade applications.
Our lithium batteries are widely used in drones, mobility scooters, wheelchairs, golf carts, robots, medical devices, garden tools, smart home appliances, energy storage systems, and specialty applications.
Yes, we specialize in customized lithium battery packs and BMS solutions based on your voltage, capacity, size, and application requirements.
Let our battery experts provide you with a customized solution and quote.