List of battery powered appliances etc.?

[Skvez]

Batteries also age even if they're not used (and maintained). Lithium tend to loose about 20% of their capacity every year whether they're used or not. Thats why a laptop battery is pretty close to useless after 5 years.

As far as some of the "12V" items mentioned you're going to need a large solar / wind setup to provide the power for some of those things.

As far as heating goes (coffee making, hair drying etc) I'll be using fire for that, not my precious limited battery power.

There are two ways to size a system.
1] Start with the money you are willing to spend and see how big a system you can get for it.

2] Start by working out what you *need* to power and working out how expensive a system you need to do it.