Charging voltage : 12.6V for 3S BMS board,16.8V for 4S BMS board,21V for 5S BMS board.
This protection board adopts mature protection circuit, special IC, imported high current ultra low internal resistance MOS (single MOS internal resistance as low as 3 milliohms), and has perfect and stable charging and discharging protection functions.
Before installing the protection board, the battery must be matched well (the voltage difference between each battery is not higher than 0.05V, the internal resistance is not more than 5mΩ, the difference of the capacitance is less than 30mAh), the better the battery consistency, the longer the battery life, and the best performance of the protection board.