On Sat, 10 Jan 2004 10:20:39 +0000 (GMT), Dave Plowman wrote:

I've just finished doing something similar to mine, although I've
used a car battery and invertor as the standby source.
snip
I'd be happy with comments from others on any improvements.

Change the car battery for a "leisure" type battery. Generally car
batteries do not take kindly to deep discharges, a few cycles and they
are dead or have a dead cell.

--
Cheers
Dave. pam is missing e-mail