On Fri, Mar 24, 2006 at 09:22:21AM -0800, Mark Schoonover wrote: > edukes at alltel.net <mailto:edukes at alltel.net> tapped at Friday, March 24, > 2006 6:21 AM: > > This may be a really stupid question, but can a gel type marine > > battery be used in a UPS? > I don't think so. Gelcells are different than the sealed lead acid batteries > found in UPS's. They have different charging requirements, and will > discharge differently than SLAs. Probably best to purchase replacement > batteries from the manufacturer... I've had fine luck with off-brand batteries but always ones that were spec'd to work with the UPS in question. We have a local store here called "batteries plus" - it's a franchise. They had pretty good pricing on batteries for my APC UPSes. A bit more than cheap website prices i found, but shipping batteries is expensive.