Do you have to worry about fumes from the car battery, or do you only use
the "sealed" type of car battery?

"Ed Huntress" wrote in message
...
"Too_Many_Tools" wrote in message
oups.com...
If you can get your hands on a copy of the 2005 ARRL Handbook, there are
several suggestions in there (radio-related, but you can improvise from
them), and some information about UPS's.

One is a charger for 12V storage batteries in general, including car
batteries. Another is an emergency power supply (you can just run two
wires
to your car battery, or a bank of deep-discharge batteries wired in
parallel
if you're so inclined). Depending on the model you have, you can get 160 W
to over 300 W of 120 VAC and/or 12VDC from them.

Mine (an APC Back-UPS 600) is now wired to an old car battery. It will run
my computer for a lot longer than the old gel-cell that came with it.
Since
we're on the end of a power transmission line, it gets a fair amount of
use.