For what would appear common sense to me, but perhaps not to all, I have all of my computers on UPS battery backups
. After getting frustrated when the power flickered one day, I immediately went out and purchased a UPS. Well, shortly after, the power went out for longer than the battery could keep my computer afloat. I needed a better solution!
I wanted my UPS to be able to last for at least 60 minutes in a power outage. I needed more power! My solution: Car batteries.
UPS that is rated at least double what you plan to draw (see step 8 to understand why).
Wire (12 awg or larger; two different colors)
Heat shrink tubing
Car battery with terminals on the top
Adapters to go from the car battery terminals to threaded rod.
Wing nuts the same size as this threaded rod
Wire crimp terminals that will fit over the threaded rod.
Plastic case for your car battery
Inline Fuse holder (radio shack
30 amp fuse for holder (any auto store)
heat gun or alternative