Specifications: _x000D_ Suitable range: For nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries)_x000D_ Product Size: 59mmx20mm_x000D_ Charging voltage: 12.6V-13.0V_x000D_ _x000D_ Maximum output current: 20A (if the cooling environment is not good, please reduce the load current use) _x000D_ Continuous charge current (upper limit): 10A _x000D_ Maximum output power / charging power: 252W_x000D_ Weight:5g_x000D_ _x000D_ Precautions:_x000D_ 1.Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip._x000D_ 2.After connection,it need to first charge activation, then will have the output._x000D_ _x000D_ _x000D_ Attention: Do not mix the good battery and poor battery to use.The internal resistance of 3 battery capacity are closer will be better.Please buyers know the professional knowledge of this module before buying_x000D_ _x000D_ Package Included:_x000D_ 1 x PCB Protection Board_x000D_ _x000D_ Note:_x000D_ -Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully._x000D_ -Please allow 1-3CM differs due to manual measurement._x000D_ -Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.