4s Bms 4s 40a Bms Li-ion Battery Protection Board Balanced Version In Pakistan

Rs.372
SKU: 11889
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Description

Features:

  • 4S 16.8V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery)
  • Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter
  • Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
  • Continuous charge current (upper limit): 20A
  • Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
  • Charging voltage: 16.8V - 18.1V
  • Balanced version: suitable for starting current below 80A, power 135W below the drill (with balance)
  • Board Size: approx. 46*60*3.4mm

project Minimum Typ. Maximum. Units
Current consumption 12 18 24 μA
Overcharge protection voltage 4.2 4.25 4.3 V
Balanced starting voltage 4.17 4.2 4.23 V
Equilibrium current 95 100 105 mA
Balanced heating power 1.56 1.72 1.91 W
Overcharge recovery voltage 4.1 4.15 4.2 V
Overload protection voltage 2.4 2.5 2.6 V
Overvoltage protection after overload protection 2.8 3 3.2 V
Overvoltage protection after overload protection 3.2 3.5 3.8 V
Discharge recovery voltage 2.9 3.2 3.3 V
Internal conductivity resistance 2.5 3 3.5 mec
Overcurrent protection current C 70 80 90 A
Overcurrent delay time 100 150 200 RS
Continuous working current 0 40 40 A
Continuous power output 0 672 672 W
Ambient temperature -40 25 85 ° C

>td >Repair by welding


Bug fix:
Malfunction phenomenon Fault check and cause Decision
Unable to charge Measuring the voltage of 4 groups of batteries.
when one of the battery voltages exceeds 4.25V,
the protection board will activate overcharge protection.		 Connect the battery well, don't mix
good battery and bad battery.
Impossible to discharge Measuring the voltage of 4 groups of batteries.
When one of the battery voltages is below 2.7V, the
protection board will activate over-discharge
protection.		 Connect the battery well, don't mix
good battery and bad battery.
Charge / discharge
failure		 OV, 4.2V, S.4V, 12.6V, 16.8V are incorrectly connected Remount or replace a new board
(human error, no warranty)
Overcharge / overdischarge
failure		 OV, 4.2V, 8.4V, 12.6V, 16.8V not properly connected Remount or replace a new board
(human error, no warranty)
Discharge protection Make sure the battery is sufficiently discharged.
power and ensure that the inrush current of the load
exceeds the current of the overcurrent protection
board.		 Replace the battery with a more powerful
discharge capacity, or a
high current protection plate
(super working range)
Soldering components and the PCB pad.
Welding components A short circuit between two or more contacts is an
integral part.		 Remove component and re-weld
Electrostatic breakdown A In the off state, measure the G, D and S
poles of the MOSFET. If the forward and backward
resistance of any two pins is 0Q,
this indicates that it has broken.		 Remove the new MOS tube.
Electrostatic breakdown B Remove the MOS tube and measure the resistance.
poles G and D, G and S tube MOS.
If there is resistance indicating that it has broken
down the resistance should be infinite.		 Remove the new MOS tube.


Package includes:

1 x Battery Protection Board