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Help with battery charger circuit Answered

I have a slot machine with a 3.6v rechargable lithium battery on motherboard. The problem is the battery goes dead after about a week and the settings are lost. I want to attach a solar battery charger to it so I do not have to leave it plugged in. Could I run the output of the solar charger through a comparator and then to the battery while it is still in the circuit? The panel puts out around 3v in the room I want to use it. Would this be enough to power an op amp? Then when the battery reaches a certain voltage the comparator changes output and stops charging.  If so, would this work? Any advice on how to build the circuit?

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steveastrouk

6 years ago

How is it supposed to be charged ?

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steveastrouk

6 years ago

How is it supposed to be charged ?