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4 String 14.8V/40A 18650 Lithium Battery Protection Board Current Peak 40A Over-Current Protection (BMS)


Charger BMS Protection Board For 18650 Li-ion Lithium Battery Cell

EGP120.00

4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14.8V 16.8V Lipo Cell Module

Specification:

  • Overcharge detection voltage: 4.28+ 0.05 V
  • Overcharging voltage: 4.2-4.3V
  • Over-discharge voltage: 2.5 ±0.08
  • Overcharge detection delay time 0.1s
  • Temperature range -40~85
  • Short circuit detection delay time: 100ms
  • Over-current detection delay time: 500 ms
  • Balanced current: 100mA
  • Working current: 40A
  • Overcurrent: 80A
  • Short circuit protection function: there is, disconnect the load can be self-recovery.
  • Size: 60 x 45 mm

Main function:

Overcharge protection, over-discharge protection function, short circuit protection function, over current protection function, balance.

Notes:

Strictly according to the diagram wiring: 0V(B-) 3.7V(B1) 7.4V(B2) 11.1V(B3) 14.8(B+), Do not deliberately short circuit.
After the wire is connected, it needs to charge the batteries first, then have output.
When the battery is connected in series with 3 groups, please ensure that the voltage of each battery is the same. If not the same, please fill in each set of batteries and then use them.
Do not mix the good battery and the battery.
It will be better the capacity of the battery internal resistance is closer.

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