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3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
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3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance - China

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Description

Main Features

Description:
 
Suitable for starting current below 80A, power 135W below the drill. (with balance) 3S 12.6V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Product Size: 41 * 60 * 3.4mm
Product weight: 9.8g
Charging voltage: 12.6V - 13.6V
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
 
Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!).
Note 2: Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.
Note 3: When soldering the battery for the first time or while charging, as long as the single battery exceeds 4.2V, the "430" resistor will heat up and discharge (discharge to about 4.19V to stop heating). If the "430" resistor is severely hot, check if the wrong line is connected.
 
For some of the poor basis of electronic customers to explain:
 
Balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity / resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

ProjectMin.Typ.Max.UnitsNotes
Consuming current121824uA 
Overcharge protection voltage4.24.254.3V 
Balanced starting voltage4.174.24.23VBalanced version
Equilibrium current95100105mABalanced version
Balanced heating power1.171.291.43WBalanced version
Overcharge recovery voltage4.14.154.2V 
Over-discharge protection voltage2.42.52.6V 
Overvoltage protection after over-discharge protection2.833.2V1C discharge
Overvoltage protection after over-discharge protection3.23.53.8V2C discharge
Over-discharge recovery voltage2.93.23.3V 
Conduction internal resistance2.533.5mQ 
Overcurrent protection current708090A 
Overcurrent delay time100150200ms 
Continuous operating current04040AResistive load
Continuous output power0504504WResistive load
Ambient temperature-402585°C 
 
Package includes:
 
1 x Battery Protection Board 

Troubleshooting:  
Fault phenomenonFault check and causeApproach
Unable to chargeMeasure the voltage of the three groups of batteries. When one of the battery voltages exceeds 4.25V,  the protection board will activate overcharge protection.Pair the battery pack well, do not mix the good battery 
and the bad battery (normal function)
Unable to dischargeMeasure the voltage of the three battery packs. 
When one of the battery voltages is lower than 2.7V, 
the protection board will activate the over-
discharge protection.
Pair the battery pack well, do not mix the good battery 
and the bad battery (normal function)
Charging/discharging failureOV, 4.2V, S.4V, 12.6V miswiredRewiring or replacing a new board (human failure)
Overcharge/overdischarge failureOV, 4.2V, 8.4V, 12.6V miswiredRewiring or replacing a new board (human failure)
Discharge protectionCheck that the battery pack has sufficient 
discharge capability and check that the load's 
starting current exceeds the overcurrent 
protection current of the protection board.
Replace the battery pack with a higher discharge 
capacity, or a protective plate with a larger current 
(super working range)
Component solderingThere is no connection between one of the 
components and the PCB pad.
Repair welding
Component weldingThere is a short circuit between two or more pins
 of the component.
Remove the component and re-weld
Electrostatic breakdown AIn the unpowered state, measure the G, D, and S 
poles of the MOSFET. If the forward and reverse 
resistances of any two pins are 0Q, it indicates 
that it has broken down.
Remove the replacement MOS tube
Electrostatic breakdown BRemove the MOS tube and measure the 
resistance of the G and D, G and S poles of the 
MOS tube. If there is a resistance indicating that it
 has broken down, the resistance should be 
infinite.
Remove the replacement MOS tube























Specification

Type
Voltage Regulator
Condition
New
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3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance

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