Battery BMS Protection PCB Board For 3-4 Pack 18650 Li-ion Lithium Battery Cell<br> Description:  <br> 3 series lithium battery protection board high current 11.1V 12.6V 14.8V 16.8V 4A operating current<br>  <br> Function:  over charge protection， over-discharge protection， short circuit protection， overcurrent protection.<br> Single discharge Minimum protection voltage: 2.30V<br> Single discharge Maximum protection voltage: 4.35V<br> Protection board continuous operating current: 2.5A<br> Protection board overcurrent protection current: 9.0A<br> Protection board  Short-circuit current: 10.0A<br>  <br> 3-4 lithium battery protection board， using 1414 management integrated circuits， just need to change the wiring then can be used on  4-connected lithium battery.<br>  <br> Battery charger selection tips:  <br> 3 series Optional charger is 12.6V \/ 2A (2A current within available)<br> 4 string Optional charger is 16.8V \/ 2A (2A current within available)<br>  <br> Package included:  <br> 1 x Battery BMS Protection PCB Board