4S 14.8V 16.8V 20A Peak Li-Ion Lithium Battery 18650 LiCoO2 Protection Board BMS - Asia Sell

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  • 1 Piece.
  • 4S 14.8V 16.8V 20A Peak Li-Ion Lithium Battery 18650 LiCoO2 Protection Board BMS.
  • For hobby purposes only.
  • 4 series 18650 battery 16.8V 16V 14.8V.
  • 14.8V (Li-ion 18650 or li-ion battery rated voltage).
  • 16.8V (Li-ion battery full charge voltage).
  • 14.4V ( Lipo battery pack rated voltage).
  • 1) this board is not suit high power electronic tools such as screwdrivers and drills.
  • 2)Above 3A device,means the battry 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.


    • 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.

      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.

      BMS solder instructions

      • 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-ion18650,LiCoO2,LiMn2O4,Li(NiCoMn)O2 rechargeable batteries.
      • 4S Lipo rechargeable batteries.

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