Actually, the one I have is pretty good. But if you want something that lasts longer, you might have to go on the industrial side (or you can hook up car batts.... been done before.

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But yeah, the one I have is perfect. Not sure what the model is exactly but I'm sure you can find something on the apc website or even locally. They are about 80 bucks I think.
Archived topic from Iceteks, old topic ID:610, old post ID:4640