5Pcs 3S 40A Li-ion Lithium Battery Charger Protection Board PCB BMS For Drill Motor 11.1V 12.6V Lipo Cell Module With Balance
|Overcharge protection voltage||4.2||4.25||4.3||V|
|Balanced starting voltage||4.17||4.2||4.23||V||Balanced version|
|Equilibrium current||95||100||105||mA||Balanced version|
|Balanced heating power||1.17||1.29||1.43||W||Balanced version|
|Overcharge recovery voltage||4.1||4.15||4.2||V|
|Over-discharge protection voltage||2.4||2.5||2.6||V|
|Overvoltage protection after over-discharge protection||2.8||3||3.2||V||1C discharge|
|Overvoltage protection after over-discharge protection||3.2||3.5||3.8||V||2C discharge|
|Over-discharge recovery voltage||2.9||3.2||3.3||V|
|Conduction internal resistance||2.5||3||3.5||mQ|
|Overcurrent protection current||70||80||90||A|
|Overcurrent delay time||100||150||200||ms|
|Continuous operating current||0||40||40||A||Resistive load|
|Continuous output power||0||504||504||W||Resistive load|
|Fault phenomenon||Fault check and cause||Approach|
|Unable to charge||Measure 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 discharge||Measure 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-
|Pair the battery pack well, do not mix the good battery
and the bad battery (normal function)
|Charging/discharging failure||OV, 4.2V, S.4V, 12.6V miswired||Rewiring or replacing a new board (human failure)|
|Overcharge/overdischarge failure||OV, 4.2V, 8.4V, 12.6V miswired||Rewiring or replacing a new board (human failure)|
|Discharge protection||Check 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 soldering||There is no connection between one of the
components and the PCB pad.
|Component welding||There is a short circuit between two or more pins
of the component.
|Remove the component and re-weld|
|Electrostatic breakdown A||In 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 B||Remove 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
|Remove the replacement MOS tube
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