This high-performance 12.8V 3.5Ah Lithium Iron Phosphate (LFP) battery pack, constructed using 26650 large cylindrical cells in a 4S1P configuration, provides stable and reliable power support for your equipment. Specially designed for portable devices, medical instruments, small energy storage systems, and various mobile terminals, it delivers continuous and stable high-voltage output along with an ultra-long cycle life, ensuring reliable, efficient, and safe power support even under frequent charge and discharge scenarios.
Lithium Iron Phosphate (LFP) battery cell system with excellent thermal and chemical stability, delivering high safety and stability.
Long cycle life, with a capacity retention rate remaining ≥80% after 2,500 complete charge and discharge cycles at room temperature.
Stable operation across a wide temperature range, supporting charging from 0 to 45°C and discharging from -10 to 60°C to meet standard operational environment needs.
Professional BMS protection board, integrating multiple safeguards against overcharge, overdischarge, overcurrent, short circuit, and high/low temperatures to ensure long-term, safe, and reliable battery pack operation.
Specifications
Model 26650-4S1P
Capacity 3.5Ah
Nominal Voltage 12.8V LFP
Internal Resistance ≤20mΩ
Operating Temperature Charging: 0~45℃
Discharging: -10~60℃
Cycle Life 2500 cycles ≥80%
Application Fields Emergency starting battery, UPS backup power supply
We provide the following services
Flexible support for customized solutions
Reliable and stable performance
Samples and mass production available
OEM, ODM available
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