I was looking at a Jackary 300 in walmart to figure out how to power some stuff in my new camper. Since I'm not needing to run much in it I wasn't looking for anything complicated.

The one at walmart is expensive as hell(for just the device alone vs buying it with the solar panel from lowes or amazon) but I was just reading the box to learn some stuff about it. The worker showed me something else that is cheaper but not the same. It requires either the 20v battery in it charged or to be connected to a car battery. Idk how long a car battery would last. I was looking at the Jackary because it's able to be solar charged. Idk which is better.

All I currently need to run in it is something to charge my phone, a fan, and MAYBE a mini fridge later on when I get one. The camper is a wip but i still kinda wanna get used to living in it.

All I plan on being in there is me, my dog, and a rabbit(rabbit will have their own section and a rechargeable fan so no cords for obvious reasons)

The camper has an air conditioner but we don't have the power turned on yet on the property it's currently on so I can't turn it on. Idk how the electric system is set up in it someone else redid everything before my friend got it and they don't even know if a battery will work in the camper itself.

Normally fans are enough for me I just don't know what is just enough or more than enough to run the little bit I need without spending a crap ton all at once. I'm in the process of getting a better job so i can work on it alot more. I've stayed in it before when there was power and it's nice and spacious for me. Too cramped for my friend so they are switching campers and giving me that one. We are two different heights and I normally don't need as much space as other people.

(We plan on having the electric back on within a month or two alot sooner if I get the job I'm after we need a pole fixed to get it back on RN it's a slow wip)