Peter Lynch wrote:
On Sun, 16 Dec 2007 14:00:18 +0000, Peter Scott wrote:
Thus if my calcs are
correct you need 83 Ah, which might need to be doubled to allow for
inverter inefficiency.

I find my invertor is about 80% efficient. It draws 10A @ nominal 12V
for every 100W of 240Volts it pushes out into a resistive load, so no
power factor stuff is taken into account.

Duly noted. I didn't realise that they were that good. Still means a lot
of UPSs for a steady power supply though.

Peter Scott