Charging a Battery
Charging a Battery
(OP)
HI
I would like to know when a rechargeable battery is charged whether the voltage or the current should be maintained constant?
Please help.
I would like to know when a rechargeable battery is charged whether the voltage or the current should be maintained constant?
Please help.






RE: Charging a Battery
You need to be MUCH more specific. Otherwise the answer is yes or yes, or yes and no, or no and yes, or no and no.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Charging a Battery
IF as you stated "once charged"
then you will maintain constant voltage.
Of course since it is charged you would also maintain constant current at or near zero since it is charged but we wont get in to trivial details
Dan Bentler
RE: Charging a Battery
Lithium batteries should not be charged over 4.2 volts per cell. Lead acid batteries are usually around 2.2 volts per cell at peak voltage (at least the ones I've worked with). You can "trickle charge" the lead acid batteries at a reduced rate once they are near peak. Do NOT over charge lithiums though.
NiCd and NiMH batterys can utilize peak drop charging. That is the voltage peaks (around 1.6 volts per cell) and then falls slightly (maybe .05 volts per cell) at full charge.
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If it is broken, fix it. If it isn't broken, I'll soon fix that.
RE: Charging a Battery