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Reviving Optima Batteries [message #341244] Sat, 23 February 2019 18:50 Go to previous message
Bruce Hart is currently offline  Bruce Hart   United States
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
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Senior Member
From an Optima technician on how to restore a deeply discharged Optima battery.

https://www.bing.com/videos/search?q=you+tube+Reviving+optima+battery+with+10+amp+manual+charger&&view=detail&mid=1C0331BFC432EF4217441C03 31BFC432EF421744&&FORM=VDRVRV

I have just revived a 7 year old Red Top that my brother said was dead. I used a Die Hard manual charger with 10amp and 2amp settings.
Set to 10 amps and hours later I used my automatic charger with AGM charging capabilities and got a full 100% charge.

If you find that the top of the Optima battery has a bulge it will not take a successful charge as one of the cells is dead. Also
when charging and the battery gets 100 degrees (hot to the touch) that would also indicate a shorted cell.

I have also revived a Ryobi Lithium battery that would not take a charge.

https://www.bing.com/videos/search?q=reviving+ryobi+nicad+battery&view=detail&mid=0A6522C678D070DAADD40A6522C678D070DAADD4&FORM=VIRE

Bruce Hart 1976 Palm Beach 1977 28' Kingsley La Grange, Wyoming

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