Pete O Posted May 31, 2017 Share Posted May 31, 2017 (edited) One out of the three cells in my Buick's battery has a very low specific gravity reading. The other two are very healthy. The battery has always been kept full and on a Battery Tender when not in use. Can that one bad cell be revived? I'm thinking maybe if I drain the acid, rinse out the cell, refill with new acid and charge it up? PS- forgot to mention the reason I'm asking. It's an original style, tar top, exposed connector battery. Edited May 31, 2017 by Pete O (see edit history) Link to comment Share on other sites More sharing options...
Larry Schramm Posted May 31, 2017 Share Posted May 31, 2017 Generally no. How old is the battery? If it is over five years old probably not. Will need to buy a new one. Link to comment Share on other sites More sharing options...
Pete O Posted May 31, 2017 Author Share Posted May 31, 2017 Yeah, it's over 5 years old, but the replacement is going to take a few weeks to be ready. I did find that I can order a group 2E from napa. It won't look right, but at least it'll be usable until the new correct one is delivered. Thanks Larry. Link to comment Share on other sites More sharing options...
Rusty_OToole Posted May 31, 2017 Share Posted May 31, 2017 Farm supply places like TSC sell the long 6v battery, they still use them in tractors. Link to comment Share on other sites More sharing options...
ArticiferTom Posted May 31, 2017 Share Posted May 31, 2017 If the cell is shorted out . You will only have about 4 to 5 volts . And it is shorted by build up on bottom of cell you can sometimes flush clean and put the acid back in . However if plates warped and shorted not much hope . Worth a try but use gloves ,googles and ventilation and wear cloths you may not miss losing . Becareful ! 1 Link to comment Share on other sites More sharing options...
Janousek Posted May 31, 2017 Share Posted May 31, 2017 My cousin repairs electric fork lifts for a living. He says they can sometimes shock a battery with a real hard charge but it takes an old school charger capable of a lot of amps. He says the modern chargers won't do it for safety reasons. Sometimes it works according to him and I think he said it boils the crap off the plates maybe. I never fool with old batteries and send them down the road if they are suspect. Link to comment Share on other sites More sharing options...
Bhigdog Posted May 31, 2017 Share Posted May 31, 2017 4 hours ago, Pete O said: Yeah, it's over 5 years old, R.I.P............................Bob Link to comment Share on other sites More sharing options...
Pete O Posted May 31, 2017 Author Share Posted May 31, 2017 Thanks everyone. I was grasping at straws because I didn't know where I could get that kind of group 2E (long, narrow) battery quickly, and didn't want to wait several weeks for the replacement. No Farms Supply stores here on Long Island! I ordered the battery online from NAPA for pickup at a local store. They didn't have it in stock, but they will have it by tomorrow morning! Link to comment Share on other sites More sharing options...
PFitz Posted May 31, 2017 Share Posted May 31, 2017 FYI, Interstate Battery also carries that 2E size battery. And if you want the look of the old tar-top exposed lead bar, here's a modern maintaionace free version of the old Delco of that size. http://www.restorationbattery.com/group2e.html Paul Link to comment Share on other sites More sharing options...
cahartley Posted June 1, 2017 Share Posted June 1, 2017 Is there a Batteries Plus in the area? Ours stocks those long, narrow, batteries. Link to comment Share on other sites More sharing options...
Friartuck Posted June 2, 2017 Share Posted June 2, 2017 I was able to find a 2E long battery through NAPA (part number 7205). Link to comment Share on other sites More sharing options...
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