Over time and houses, I have accumulated several UPS of different brands and capabilities. I've been trying to figure out a way to test them in a somewhat standardized way. (Test ~ see how long they last and how quickly the decline on a given load so that I can determine how the batteries will perform in "real life", at least relative to each other.) I was wondering if I missed any obvious existing references on the topic, and/or if anybody has any thoughts on the matter?
To date, my thought was, wait for temps to stay below 30/86 (hahaha), run an Edison bulb off one outlet (bought a 300W for this purpose), and monitor via NUT. For each UPS: Charge fully Take readings (via NUT of course) Plug in bulb, monitor readings Run to 0% Go to the next UPS Repeat the set (If >5% difference between runs on any, run a 3rd set; if 2nd and 3rd align, throw away data from 1st) Then repeat down to just 50% instead of 0% Then test to see if the lightbulb is still consuming energy at the same rate. Please chime in on a better (and less energy-wasting) process if you have? My original planning notes: - UPS include 550VA to 1500VA/900W, some others; APC, CyberPower, Amazon basics, other brands. Record info on all... - Check all for any acid/leak due to age/storage. Do outside of house, just in case... - test which allow muting of beeping, schedule accordingly (family, calls, sanity). Quick test... - Normalize thermals for at least 48 hours before testing - Test that all can be monitored in NUT; preferably all USB, all recognized as such in NUT UPS by USB driver, to avoid any variability in drivers or other. Configure/Test... - Use a fixed-rate load to avoid any variability; tech equipment itself might not be best, maybe a curling iron or iron or light bulb? Be aware of heat. Brightest bulb I can find is 300W, will that drain all my UPS sufficiently for this test? Is this a valid substitute for tech gear or is the consumption different enough? Research... - Run high-power extension cord outside, bulb should run outside. Make sure cord and fixture support lengthy durations at this power. Does outside temperature matter significantly? Research... - Linux or Windows NUT? Linux: N150 or Raspberry or my heavyweight Laptop? Local, VM, LXC, Container? Likely not relevant. Ask NUT User group... - Focus on 10%+ variances, not the tiny variances. - not scientific, just ballparking, but don't want to rely on bad batteries.
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