Battery Backup Guide

Lisa asked:


The battery will be used to power a small fridge and a light.

hipp5 asked:


It’s said that if you want to prolong the shelf life of a battery you should put it in the fridge. That makes sens to me because it’s slowing down the internal reactions of the battery.

However, whenever I walk to class with my laptop in the winter or have my camera in my pocket in the winter it significantly decreases the charge on the battery. Why this contradiction?

answering_machine asked:


I just got a cordless phone with a battery backup pack and the only place I can find to keep it on is my fridge. So, I wanted to know if there will be any problem to my phone or the batteries if I permanently place it over there.

GreenNut asked:


See http://gregable.com/2007/09/apartment-solar-what-is.html

I want to buy a solar panel and some other device X that will let me smoothly power appliances from X. X will use power from the solar panel first, and then from the grid if there isn’t enough. I don’t want a battery system due to the costs, if there is too much power from solar, I’ll just waste it in this system. What is X that I would need to buy or how would I build X?
Some of the answers so far pointed out that my plan is a bad one for cost reasons. I’m well aware that it isn’t going to save me any money. Leather seats in my car don’t make it go faster either. Still, I’m interested in playing with the technologies in a bigger way than a little toy car or something. The DIY part is the main interest, not the saving money or environment.