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hi

i just got a idea yesterday and here it is.

normally we charge batteries in series i.e if we want to charge 2
batteries
of 1.5 v then we connect them is series and apply 3 v and so
on..changing
the voltages...as the no. of batteries increase.

but cant we charge them in parallel i.e connect all the batteries in
parallel
and then apply 1.5 volts.

is configuration will require only 1.5 volts no matter how many
battries
are charged at a time.

can this idea work.
please reply .
thanks.

aditya n

but cant we charge them in parallel i.e connect all the batteries in
parallel
and then apply 1.5 volts.

is configuration will require only 1.5 volts no matter how many
battries
are charged at a time.

Well, it would work, but you'd need a current source that could handle it. With batteries charging in series, you'll always deliver the same current (well...not exactly...not all batteries have the same internal resistance). One battery at 1.5V versus two batteries at 3V will give you the same current because you've doubled your resistance along with the voltage. So your power supply will only need to deliver that much current no matter how many batteries you're charging.

I'm not saying it's impossible, though, try it.

No matter how your batteries are configured, series or parallel, it's still going to be the same wattage dissipated in the power supply.

-Tavys