On Jan 30, 2009, at 11:28 AM, Anne Wilson wrote: > OK, thanks. I'll look around. I guess if they are selling 'standard' > batteries they will have some way of making sure that what I buy is > compatible. Another adventure :-) There's info on the battery that will identify it. Voltage (typically 12V for a small UPS) Ah or mAh (Amp-hours or milliamp-hours, typically 7.5 for a small UPS) A manufacturer model number (they should be able to cross-reference to get the equivalent) --Chris