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20S 72V 45A 18650 Lithium Battery BMS PCB Protection Board with Balance for Scooter Ebike Electric Bicycle

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Features:

  •  -With a balanced, same port 45A discharge.
  •  -Protection board with overcharge protection, over discharge protection, over current protection, short circuit protection, temperature protection.

Attention when connecting:

  •  -When we connect BMS with cells or disassemble BMS from battery pack, the following order and regulations must be complied with to avoid damage of components of BMS and problems of not protecting of cells.
  •  -In order to achieve the best performance of BMS and to run the longest distance, all the battery must be matched well (Each battery voltage ≦0.05V, IR≦15 mΩ,capacity≦30mAh) to make sure the better consistency of the battery.
  •  -Cell must be connected in parallel first, after then connected in series

Order of connection:

  •  Step1: Connect charging /discharging wire , battery pack negative wire
  •  Step2:After confirm the wires are connected OK, plug the connector cable in the BMS
     DO NOT plug CONNECTOR CABLE in the BMS before connect wire!!

Specifications:

  • Internal resistance: ≤15mΩ
  • Size: 120*60*8mm
  • Balance voltage
    • Detection voltage: 4.2±0.025V
    • Balance current: 45±5mA
  • Overcharge protection
    • Detection voltage: 4.28±0.25V
    • Detection delay: 100ms
    • Release voltage: 4.08±0.05V
  • Overvoltage protection
    • Detection voltage: 2.55±0.08V
    • Detection delay: 50ms
    • Release voltage: 3.0±0.1V
  • Overcurrent protection
    • Detection delay: 15ms
    • Release condition: disconnect the load
    • Current protection: 120±20A
  • Short circuit protection
    • Trigger condition: short circuit of external load
    • Detection delay: 200uS
    • Release condition: disconnect the load

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  • 1pc x  20S 72V 45A Lithium Battery BMS PCB Protection Board
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