Originally Posted by
etack
Most of the time the only thing wrong with them is the battery. They would make a good cheap inverter for solar panels too.
Eric
I agree. Most of the ones I get are working and just need a new battery. Most of the recently manufactured ones won't even turn on if they don't have a good battery in them. Just as etack suggested, sometimes when I get a higher voltage UPS, I will use larger batteries and a solar panel to make a solar generator because most UPS systems produce pure sine wave vs. a modified sine wave. Pure sine wave inverters are expensive. I sell these very quickly.
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