Basen 21700 4000mAh - 30A li-ion battery
Key features:
Size: 21.04 x 70.10 mmCapacity: 4000 mAhDischarge current (constant): 30 Anominal voltage: 3.7 VFlat positive contact
These batteries come from battery packs in which welding errors have been found. The batteries have never been charged or discharged.
The cells we offer have:- Minimal damage to cell- Never charged during production (from the box) (each cell is tested)- Resistance is according to datasheet, never worse (every cell is tested)