Not all UPS have two batteries. I have a old APC 900VA = 500watts
that uses a single 12 volt battery. A gas cloud explosion is
extremely unlikely, particularly in a ventilated room. I have had two
850 Cold Cranking Amp car batteries ... a Motocraft and a Interstate
that have been sitting in my office for years. At times I have
had/used them in my bedroom. They are hooked up to a solar trickle
charger and I use them with an invertor whenever something like a
wild fire kills the power for an extended period of time. I have
never had a problem. I live in a area where the windows are always
open and most of the time I have a fan running to combat humidity.
At 03:45 AM 10/19/2013, you wrote:
Well, yes, I suppose you could use a pair of auto batteries. Yes, you would
need two in series (24vdc). But why?
Don't auto batteries bubbleoff hydrogen gas as they charge? Why would
you wish to create a gas cloud inside a home? I'm pretty sure that ups's
still use emc power contactors to do conversion switching. One spark and boom!
Perhaps some of the newer battery chemistry's my help avoid this
trouble, but I
wonder. I only charge my auto/lawn tractor batteries outside in the driveway.
Just a thought. I'll defer to the experts, however.
Duncan
On 10/18/2013 21:34, Winterlight wrote:
Anybody here ever hook up a car battery to a UPS?
