• BMS 4S 20A 18650 Lithium Battery Protection Board

BMS 4S 20A 18650 Lithium Battery Protection Board

high-accuracy voltage detection circuit;
terminal of the charger using high voltage device;
Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);
MOS transistor can control the battery charge and discharge;
low standby current consumption


BMS solder instruction:
B+ connected battery positive;
B1 the connect point between battery 1 and battery 2
B2 connect the point between battery2 and battery 3
B3 Connect the point between battery 3 and battery 4
B- connect to battery negative end
P- + connection charge / discharge positive;
P- connection charge / discharge negative


4S LI-ION BMS Specifications:
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
Short cut Protection: Protectable ,change for repair
Size: 3.6×3.5cm/1.42×1.38inch

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BMS 4S 20A 18650 Lithium Battery Protection Board

  • Product Code: BMS4S20A
  • Availability: In Stock
  • Rs.220.00

Tags: BMS, 4S, 20A, 1865, Lithium, Battery, Protection, Board