OK, Ive got this 1,000 watter that has a dead battery and I like this idea. How do I hook up bigger batteries to run for hours?
This is why I wrote this .FAQ file. In my case I took an old 500 watt UPS and modified it to use an external battery. First you need to find out the original battery’s voltage. In my case I was able to tell my UPS takes 24 volts. I examined the battery pack and figured it out. It took 4 batteries of 6 volts each in series. In early times with a cheap consumer UPS I found it took a 12 volt battery by counting the seams of plastic separating the lead-acid cells of the battery. Most UPS’s use lead-acid batteries much like a car but sealed. I took jumper cables and made holes in the case and ran them to the battery in question.
