On Friday 30 January 2009 19:33:24 John R Pierce wrote: > Chris Boyd wrote: > > 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) > > many of the smaller UPS's use a pair of 6V 12AH batteries wired in > series... if these are mounted side-by-side, you can use a single 12V 12AH. > > many UPS batteries use a somewhat different rating than AH, based on > minutes at some load factor. > > I get my batteries from > http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=393246 > > anyways... measure the size of the battery, go here, select the voltage > on the far right, and pick the size, and .250 spades (or whatever) and > hit search. BB are somewhat cheaper, Panasonic are considered premium > grade. a really large UPS will use M5 or M6 bolt lugs. > > > prices -have- gone up.... a few years ago, Panasonic 12V 20AH were $44. > now they are $73. ouch. > > if this is too complex, or if your UPS uses a funky battery assembly > you're not up for hacking, try these guys... > http://www.refurbups.com/Catalog/By-APC-RBC-Battery-Number;jsessionid=0a010 >5501f434fd727d50b9643569c308deb23faa548.e3eSc34OaxmTe34Pa38Ta38Qb350 > OK. Thanks, both of you. Info bookmarked for investigation :-)
Anne
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