4S1P / 4S2P 16.8V DIY Solder-Free 4-String 18650 Lithium Battery Management System BMS Battery Box

1#: 4S1P2#: 4S2P4S: 4 batteries in series2P: 2 pack parallelSpecifications:Rated voltage: 15VDischarge voltage: 11.6VFull voltage: 16.8VCurrent: depends on battery performanceSize: 110*85*20/45 mmFeatures:1. Can install 65-67mm 18650 battery.2. With charge and discharge voltage protection function to prevent overcharge or overdischarge.3. With voltage balancing function to ensure the same resistance voltage.Note:1. The upper and lower layers can be superimposed, only increasing the capacity without changing the voltage.Taking 3000 mAh per battery as an example, a full battery on a 4S1P circuit board is 15V 3A, 4S2P is 15V 6A, and 4S4P is 15V 12A. You can stack battery boxes arbitrarily according to your actual needs.2. During the battery charging or discharging process, the voltage will change, and the product's protection board does not have the function of output voltage stabilization.3. Lithium battery must be pressure measured in advance and the internal resistance paired.4. Positive and negative can not be reversed.5. Support multi-layer battery board with cable connection. (But does not include cable, you need to purchase separately)Package Included:1 x 4S1P / 4S2P 16.8V DIY Solder-Free 4-String 18650 Lithium Battery Box