4S 16.8V 20A Peak Li-ion BMS Battery Protection Board

NOTE:

• 1) this board is not suit high power electronic tools, if use for screwdriver and drill, please don't buy
• 2)Above 3A device, means the battery discharge rate is more than 3C.
• 1C rated battery, 2000mah equals 2ah*1=2A max working current.
• 3C rated battery means 2ahx3=6A Max working current.
• Features:
• 1) high-accuracy voltage detection circuit;
• 2) terminal of the charger using high voltage device;
• 3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);
• 4) MOS transistor can control the battery charge and discharge;
• 5) low standby current consumption.
  
  4S LI-ION BMS Parameters:
• Over Charge Voltage:4.25-4.35v±0.05v
• Over Discharge Voltage: 2.3-3.0v±0.05v
• Max working current:10A
• Max Peak current:20A
• Working Temperature:-40---+50
• Storage Temperature:-40-- +80
• Small current:6uA
• Life cycle:50000hours
• Resistance:45mΩ

• Short cut Protection: Protectable ,change for repair Size:35*35*3.0mm