> I used to revive bad car batteries by buying a gallon jug of sulphuric acid > at a welding supply shop, and dumping the acid out of the battery and Um. Dumping it where? > refilling it with new stuff. They would last another 3 years through cold > MN winters before they needed to be thrown out. I wonder if you could do > that with the APC battery... I'm no battery expert, but I don't think that'd work with these APCs, nor even for all modern car batteries. BTW, why do your posts always get duplicated: To: "'tclug-list at mn-linux.org'" <tclug-list at mn-linux.org> Cc: TCLUG <tclug-list at lists.real-time.com> Andy