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Old 03-20-2008, 03:41 AM
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D_o_S
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Join Date: Dec 2005
Posts: 181
Default Bringing batteries back to life
Hi all,

I have a box full of old GP 3700s... when I put them into my charger, they show around 0.6V.

I have tried several things, but I can't seem to bring them back to life...

I have tried cycling at 0.5A charge/0.5A discharge... this works, but as soon as I try to charge at around 3.7A/3.7A discharge, the cell charges at ~1000mAh and discharges only 100mAh.

One of the cells I tried 3.7/3.7 on yesterday vented on me.

Should I just go through more 0.5/0.5A cycles, and slowly up the current as I go along?

Or do you have any other better methods of bringing batteries back to life? I also thought about doing a little bit of flex charging on them, but that is only recommended for NiCd as far as I gather?

Thanks in advance.
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