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3.7V 100A 5S BMS Li-ion LMO Ternary Lithium Battery Protection Module Board With Balance Support Disconnection/Over-Current/Over-Charge/Over-Discharge Protection

17% OFF 3.7V 100A 5S BMS Li-ion LMO Ternary Lithium Battery Protection Module Board With Balance Support Disconnection/Over-Current/Over-Charge/Over-Discharge Protection US$7.11 US$8.51 View It

Overall:

Graeme 03/05/2018

Nice looking board, Using to re power old cordless power tool. balance function works great, but can over charge. My power charger puts out 26 volts and the battery cells were charging over 4.4 volts. So will put a resistor in charger to bring voltage do to 21 volts. Apart from that, it works good.

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Matthijs79 that'sa bit strange because its should shut off charging after around 4.25V for each cell individually . This should not depend on the power supply voltage (within the allowed voltage range let's say 21.5V - 30V? ).
Reply 31/01/2019

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