Suitable for 21V battery BL1840 BL1850 BL1830 BL1860B LXT 400. 1 x Mt21V Protection Board. It can build 10 pieces of INR18650 battery cells. Adjust the battery capacity of your device.
1Set 21V Battery Charging PCB Protection Circuit Board For BL1830 BL1840 BL1850
4S Battery Charging Protection Board PCB Circuit Board for WORX Power Tools
PCB Battery Charging Protection Board 4S Circuit Board for WORX Power Tools
10/15 Cell 18650 Li-ion Battery Shell PCB Charging Protection Circuit Board Box
