| Type: | Li-ion Battery |
|---|---|
| Cathode Material: | LFP |
| Rechargeable: | Yes |
| Size: | Small |
| Cycle Life: | 4,000 Times @ 80%Dod(1c Continuous) |
| Warranty: | 5 Years |
| Samples: |
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| Customization: |
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Audited Supplier This cell is our latest technology. 1 single cell could offer 250A continuous current and more than 500A peak current! we developed this cell for some special use application like when the big drone takes off need a super high current and Remote Control racing which is over 100km/h.
| Cell model (LiFePO4) | BCPFE21N | Voltage and capacity | 3.2V 21Ah @ C/3, 23ºC |
| Cell Dimension | 140*9.5*202 mm(without tab) | Weight | 500 grams ± 10 g |
| Max charge current | ≤ 42A @ 23°C / 2C constant | Max discharge current | 252A@continuous (12C ≤5min,23°C) |
| Cycle life (±C/3 current) | ≥ 4000 times@ 80%DOD 1C, 23°C | Operating temperature | Charge:0ºC~50ºC Discharge: -40ºC~60ºC |
Charge voltage |
3.65V(CC/CV Mode) | Cut off voltage | 2.5V |
Pls check below curves of the cell testing result: you will see after 2000 times cycle. the cell capacity is still more than 90%. 
The curves above: the solid line represents the magnitude of voltage drop with difference discharging rate and dashed line represents the cell temperature with difference discharging rate.
Bestgo Battery makes high quality Li-ion pouch cells which have thin shape for heat passing and internal resistance reduction. The package foil of cells is a type of aluminum and elastic fibers mixed material which comes from Japan based company (Showa). The aluminum improved the heat passing efficiency, the strong elastic fibers make foil has good strength and tolerence. In extreme condition if cells damaged and generated heat and gas, the package foil can be blown up to hold them but not allow any liquid or gas leak out, this is a very nice safety design.
To enhance the safety reliability, we applied an unique step in manufactuing that is arrange all half-made cells in 75 degree Celsius oven for 2 hours as a high temperature tolerence test. Our unique chemistry formula and nice materials will help cells pass the test. Then we promise pouch cells made by us are quality reliable in high temperature condition as we specified. The electrolyte of our pouch cells are semi-solid state which better than liquid type that may have risk of leak out of cell.
Over the past 10 years, we have got rich experience in customized services. Our senior engineers will give you the best solution according to your detailed requirements!
We have made many customized battery packs of different specifications such as:
12.8V560Ah
48V52Ah/148Ah/175Ah/222Ah/444Ah/703Ah
111V222Ah
Bestgo Battery Co., Ltd. is an advanced lithium ion battery company which specialized in electric vehicle level Lithium Ion Phosphate based (LiFePO4) batteries and Lithium Nickel Cobalt Manganese Oxide based (Li-NCM) batteries. We are dedicated to offer high power and energy density, long lifespan and ultra safe battery products. Bestgo can offer complete solutions for the li-ion cells, battery modules and finished battery packs. With talent technologies, our batteries have amazing consistency and high reliable performance even after years using. We are dedicated to make the best products for customer.We have CE/UN38.3/MSDS and Sea/Air shipping Certificate for all of our battery.
Suppliers with verified business licenses
Audited Supplier 
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