Features 1、Overcharge, over discharge, over current, short circuit protection 2、Compact, suitable for many of the requirements of highly integrated 3、plate low temperature coefficient, design, fine workmanship, testing and comprehensive 4、Comes with recovery function - AUTO Recovery 5、 Specification Specifications: Suitable range: For nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries) Product Size: 59mmx20mm Maximum output current: 20A (if the cooling environment is not good, please reduce the load current use) Continuous charge current (upper limit): 10A Maximum output power / charging power: 252W Weight:5g Precautions: 1.Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip. 2.After connection,it need to first charge activation, then will have the output. 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 Package Included: 1 x PCB Protection Board Note: -Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. -Please allow 1-3CM differs due to manual measurement. -Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Package List