6pcs Enhanced 4S 40A 16.8V 18650 Lithium Battery Protection Board PCB BMS Charger Protection Circuit Balance Charging Module

Brand: XIITIAItem Weight: 0.05 KilogramsInput Voltage: 3.7 VoltsOutput Voltage: 16.8 Volts (DC)Plug Format: Micro-USB★Multiple Protections: Over-discharge protection, overcurrent protection, overcharge protection; High charge and discharge current.★superior; Compact size and lightweight; High-accuracy voltage detection circuit; Fine workmanship and tough; Stable performance.【Low Standby Current】: MOS transistor can control the battery charge and discharge, low standby current consumption.★If you want to start the drill successfully, it requires 3pcs15C-20C power batteries, or 6pcs10C-15C power batteries.【Applications】: It is suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, no size limit).Besides, it can use for electric drill with starting current below 80A and power below 135W. Perfect for everyday use. High quality materials and excellent craftsmanship ensure long-lasting durability.