Anyone using compact batteries instead of a fuel generator? preppers

I was looking at the "Goal Zero 23000 Yeti 400 Solar Generator", just because that's what The Wirecutter web site recommended. Anyone using one of these?

1. Can someone point me to instructions for calculating how much maH one would need to , for example, run a refrigerator?
2. For bugging in, would it be better to just buy some boat batteries and an invertor?

Thanks.

Submitted January 31, 2017 at 07:28PM by loac http://ift.tt/2kn91F1 preppers