4S 20A Li-Ion Battery Charger Module BMS Protection PCB Board


4 in stock

Product Details

  • Product Type: BMS charger module
  • Suitable for: 18650 Li-Ion battery
  • No of cells compatible with: 4 
  • Dimension: 36mm x 36mm x 4
  • Package contains: 1 x 4S 20A Li-Ion BMS Protection PCB Board


4 in stock

Additional Info
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  • BMS stands for the battery management system. This is a BMS with 20A current and 14.8V voltage rating to charge 4 cells of Li-ion cell. The module comes with overcharge protection, over-discharge protection, overcurrent protection, and short circuit protection.


    • High-accuracy voltage detection circuit
    • Terminal of the charger using high voltage device
    • Built-in three-stage over-current detection circuit
    • Can control the battery charge and over-discharge 
    • Low standby current consumption
    • Small size
    • Simple writing, circuit connection, and installation 


    • Overcharge voltage range: 4.25V-4.35V±0.05V
    • Over discharge voltage range: 2.3V-3.0V±0.05V
    • Charging voltage: 16.8V to 17V
    • Upper limit working current: 10A
    • Upper limit instantaneous current: 20A
    • Quiescent current: <30µA
    • Internal resistance: 45mΩ
    • Operating temperature range: -50℃ to +50V
    • Storage temperature range: -50℃ to +80℃


    • Battery pack
    • Consumer electronics product 12V voltage rating
    • Power supply
    • Power bank and charger
    SKU: DSM099 Categories: ,

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