I want to create a bit of kit that has 3 rechargeable D cells in series in it.
I don't want to have take the batteries out to recharge - I'd prefer to add the recharge circuitry to the device and then just plug in a wall wart when required.
Now my question is, should I try to make the system recharge each cell on its own individual circuit or would it be ok (or even preferable) to recharge the whole 4.5 battery?
I suspect the purist answer is to charge each cell individually and that the pragmatic solution is to charge them as a battery. So I guess my real question is would the purist solution be "worth it"?
I don't want to have take the batteries out to recharge - I'd prefer to add the recharge circuitry to the device and then just plug in a wall wart when required.
Now my question is, should I try to make the system recharge each cell on its own individual circuit or would it be ok (or even preferable) to recharge the whole 4.5 battery?
I suspect the purist answer is to charge each cell individually and that the pragmatic solution is to charge them as a battery. So I guess my real question is would the purist solution be "worth it"?