Question about Sony AA Nimh 2500 Mah Rechargeable Battery

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Initial charging time

I just bought 4 Sony AA Nimh 2500 Mah Rechargeable Batteries. How long should the initial charging be? and once used, how long should I charge it? thank you

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Hi there
the first charge should be around 12 hours, this then teaches the battery its max load.
ignore the charger if tells you its charged after a couple of hours.
after the first charge use as normal.

hope this helps


Posted on Oct 09, 2008

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I have got the batteries on chraging since 6 hours. they are still charging. so i guess that it takes 7 hours or more to charge the batteries

Posted on May 14, 2009


Thanks beergut707.
actually, i found the charger's manual last night and it stated there that the charging hour is 7. but it depends on the Mah of the battery.
But, i do appreciate your reply. i'm not aware of ignoring the light inidcator. I usually pull the plug when it not lit. so maybe that's why my old batteries gets empty easily.
have a nice day!

Posted on Oct 10, 2008

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