drhuggybear wrote:
My daughters are now getting to the age where their events last most of a Saturday or Sunday.
Sorry, but curiosity has the best of me so I have to ask - what has this got to do with running on battery power? :h
1) If all I was going to run was some lights, a fan or two, how much power (size of an inverter, number of batteries, size of batteries) would I need?
Conservation is the key so if you've not already done so you want to swap out all your incandescent bulbs with equivalent LED versions that will draw significantly less power out of your battery. I've got an Endless Breeze 12 vdc fan mentioned and although it doesn't draw an excessive amount of power, ~ 2 amps or so on low fan speed, it is pretty noisy so I usually instead power a much quieter 120 vac fan with a true sine wave inverter even though the total power draw can easily be double that of the Endless Breeze. With conservative use a single G27 12 volt battery can suffice for many for a couple of days of dry camping but a dual set of G31 12 volt batteries or dual set of 6 volt GC-2 batteries would considerably improve your battery reserve.
2) If I added the use of a microwave how much would that change question 1?
Some do it but since the power requirements are so great I don't see the point - either forget the microwave oven when dry camping or use a genset if you just can't live without it.