Yo Jeremy! On Thu, 15 Sep 2016 15:13:59 -0700 Jeremy Nichols <jn6...@gmail.com> wrote:
> I'd like to find a UPS that uses an external battery. So > far I don't see such a thing--do they exist? Not in the store, but they are easy to make. I take consumer grade CyberPower sine wave supplies. Remove the expensive and wimpy 12V9A gells cells. Then I put two 6V deep cycle tractor batteries in a battery box and cable them into the UPS with #6 wire from old jumper cables. To make it nice and neat, I fuse it with inline 50Amp fuses and 50Amp DC connectors. Total cost about $200. I've been doing that for almost two decades and have 6 running now. I'll get two or three hours of backup from them. Two weeks ago I had a 45 minute power outage, my network never hiccuped. The batteries need replacing about every five years. APC UPS can't handle the longer runtime, but never had a problem with any version of CyberPower. Just be sure that everything you need to stay up is on a UPS, and that they are well within their load rating. I can post pictures if anyone wants. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588
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