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May 18 at 2:49 comment added Michael Altfield NiFe is probably not used because they off-gas a lot of (flammable) hydrogen and oxygen gas when charging, so they have special storage conditions and you need to water them. That wouldn't work for most residential UPS owners
Sep 1, 2014 at 9:40 answer added mgutt timeline score: 2
Apr 5, 2013 at 12:43 vote accept rcampbell
Apr 5, 2013 at 11:50 comment added Passerby Actually, you are wrong. UPS batteries are not Deep Cycling. They are meant to be on full charge most of their lives, and when the power goes out, the ups circuit cuts off external sourcing when the batteries get to a reasonable low, not a deep discharge. It's cheaper that way.
Apr 5, 2013 at 11:43 comment added Anindo Ghosh Domestic use UPS designs typically use lead-acid sealed batteries. A quick search for technical specifications of products from APC and other UPS manufacturers will confirm this.
Apr 5, 2013 at 11:43 answer added Olin Lathrop timeline score: 3
Apr 5, 2013 at 11:35 history asked rcampbell CC BY-SA 3.0