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 strange battery
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esm1704
Junior Member


Sweden
74 Posts

Posted - April 08 2012 :  20:41:54  Show Profile Send esm1704 a Private Message  Reply with Quote
Hi all
I have notice that this battery which is old 12 v 60ah but it was reading 6.8 v when I first try to rejuvenated it but it was acting strangely while charging with 12T tesla switch so it was going up then suddenly go down and also when i discharged it, it act the same way first flashing with high brightness then it go diming.
Watch the video here


does any one has an explination for this?

"Take the wisdom even from the mouths of the insane"

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49er
Administrator



USA
4443 Posts

Posted - April 08 2012 :  21:49:39  Show Profile Send 49er a Private Message  Reply with Quote
Hi esm

Looks as though you have 3 shorted cells and one of them is a intermediate short. The 6 volts tells you,you have 3 cells down. Just keep working with it for it might get better but use the light and discharge at a C 20 rate at least. Also take it down to 6.0v and recharge with out a rest 3 times in a row and peak it as high as it will go for 20 hrs to 30 hrs.

Doug
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esm1704
Junior Member



Sweden
74 Posts

Posted - April 09 2012 :  20:33:12  Show Profile Send esm1704 a Private Message  Reply with Quote
Hi 49er

thank you I will do the discharge at a C20 rate .

"Take the wisdom even from the mouths of the insane"
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