Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!decwrl!sun!pitstop!texsun!letni!doug From: doug@letni.LawNet.Com (Doug Davis) Newsgroups: sci.electronics Subject: Recovering Lead Acid batteries. (Gel. Cells) Summary: Lead acid batteries Keywords: Gel Cells Lead Acid Message-ID: <2225@letni.LawNet.Com> Date: 23 Apr 89 04:27:43 GMT Reply-To: doug@letni.LawNet.Com (Doug Davis) Organization: LawNet Inc. Texas R&D Offices Lines: 19 I Recently obtained a nice very used UPS that was broken, after repairing the machine I was able to get the charging and inverting circuits working again. My problem lies in the batteries that it uses are Gel Cells which a couple of them will only hold a partial charge. But they do hold a charge. Two of them hold about 2/3rds normal voltage, and 2 more about half and one barely holds a volt. These are 6v gel cells. My question is, is there any way, like shocking NiCads, to recover full capacity of these gel cells. BTW: Replacement cost of these are ~50.00 (us) at Allied, So in the interest of saving $$ I would be willing to sacrifice some of them in the interest of experimentation. Thanks in advance. -- Doug Davis/LawNet/1030 Pleasant Valley Lane/Arlington/Texas/76015/817-467-3740 {sys1.tandy.com, motown!sys1, uiucuxc!sys1 lawnet, killer, texbell} letni!doug Same siggie, .9832% less filling..