I calculate that usage at 33.6 a/h per day. 24 x 7 = 168 , divide by .2
= 33.6.

Rocket J Squirrel wrote:
> Hi Malcolm.
>
> A 24-hour run of your refrigerator, if it draws 7A, and has a duty cycle
> of 2/10 (two minutes out of ten) will consume 4.8 amp-hours (Ah) per day.
> So if your numbers are correct, and if you wanted to never discharge your
> deep-cycle batteries too deeply (say never less than 80% discharged so
> they last longer), then a five-day run of (call it) 5Ah per day would
> require 25Ah, and a battery with a 30Ah rating should do the job.