5S5 String Battery Charging Protection Board BMS Module 18V21V 20A

The power module is a kind of electronic components do not take pictures without professional of electronics otherwise it will be damaged! Be to read the wiring carefully wiring and the sequence of the series connection of each battery must be . If you are not do not wire it! This protection board is used to protect the battery from overcharging and overdischarging. It cannot replace the charger. A charger for lithium batteries is still required when charging! Note 1: Wiring 0V (B-) 3.7V (B1) 7.4V () 11.1V (B3) 14.8v (B4) 18v (B+) strictly according to the do not intentionally short-circuit! Note 2: After the cable is connected it needs to be there is output. Note 3: When 5 groups of batteries are connected in series that the voltage of each group of batteries is the same. If not fully charge each group of batteries separately and then use in series. During the discharge test the group of batteries with a rapid voltage drop is the poor battery. Material: PCB Color as shown Package Contents: 1 x charging protection board Only the above package content other products are not included. Note: Light reflection 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.