ITEM NAME:2* 20A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board n VMD.3 series 11.1v 12V 12.6v 18650 lithium battery protection board can start electric drill 20A current. Note 1: Successful start of the rig requires three 15c-20c power batteries or six 10c-15c power batteries (normal 18650 can not start the rig!).