ITEM NAME:4s 16.8V 18650 Lithium Battery Charger Protection Board PCB Bms Cell 40A Q2E2 4s 16.8V 18650 Lithium Battery Charger Protection Board PCB Bms Cell 40A Q2E2 4S 16.8V 40A lithium battery protection board Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery) Product Size: 45 * 55 * 3.4mm Charging voltage: 16.8V - 18.1V Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use) Continuous charge current (upper limit): 20A Color: picture color Material: PC + metal Product weight: 9.8g Package Contents:1 X 18650 Lithium Battery Charger Protection Board Note 1: The successful start of the drill requires four 10C-20C power battery or Eight 5C-10C power battery(ordinary 18650 can not start the drill!!). Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit. Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.
