Saturday, Oct 08, 2016 at 09:31
Yes that is one of the situations that can fool a " Smart Charger" .... one of the cells fails going partly short circuit ...... there is enough voltage in the other cells to convince the charger that the
battery is in a low state of charge so it kicks into boost mode .... the result is problem like you have seen.
Yes SOME not most multi-stage chargers have a temperature sensor or can hane a sensor connected ...... but it is not the majority.
Mostly that temperature sensor is there to optimise charging for temperature ...... a temperature sensor may reduce the risk ..... but they can not be relied upon, particularly in multi
battery installations ..... such as where there are 2 x 12 volt batteries in paralell or 2 x 6 volt batteries in series.
While I am left with no doubt that a modern Multi-stage charger will stick more charge to a
battery safer to a healthy
battery,....... I am not convinced that leaving batteries on large Multi-stage smart chargers long term is a good idea.
I have some old school Voltage regulated, current limited analogue chargers I'll use for that.
cheers
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