BRC 18650 Li-ion Rechargeable Battery 3.7V (1200mAh Tested)
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Prices updated: 13 Oct 2026
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About this product
A rechargeable 18650-format Li-ion cell with a 3.7V nominal voltage, used in DIY power banks, flashlights, portable electronics and battery packs. The listing advertises 5000mAh, but the seller states the actual tested capacity is 1200mAh, so designs should be based on the tested figure.
Specifications
- Nominal voltage
- 3.7V
- Chemistry
- Li-ion
- Format
- 18650
- Tested capacity
- 1200 mAh
Frequently asked questions
Can I charge this cell with any charger?
Use a charger designed for 18650 Li-ion cells, which regulates the cell to a 4.2V full charge. Chargers made for NiMH or lead-acid batteries can overcharge the cell and create a fire risk.
Why does the listing show 5000mAh?
The seller notes that the actual tested capacity is 1200mAh. Capacity labels on unbranded cells are often overstated, so the runtime you get will follow the tested value.
