5S 21V 40A - Lithium Battery Pack Charging Protection Board BMS Charger Protection Board for

Charge Voltage: 21V Charging current: 3 A Discharge current: 40 A Over charge protection current: 7A+/-2A Over discharge protection current: 66A+/-5A (Adjustable) Single Cell Overcharge protection voltage: 4.25V+/-25MV Single Cell Over discharge protection voltage: 2.7V+/-80MV size:78x46mm Material:PCB+Plastic+Metal colour:Green Package Contents: 1 * Battery Charger Protection Board Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.