From all the yada, yada, yada, I know this will be over the head of many of the readers on this forum.
But, I've been an electronics tech for 40+ years, so I do a lot of things, "out of the box", not in the book, etc.
Instead of spending way too much money on a high wattage UPS, just to get a longer run time, I buy the one brand UPS that I know will work with MUCH bigger batteries, of the car or truck type.
I have four UPS's, and two of them still have the OEM batteries, and two are now connected to larger batteries that would fit in a Tractor.
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This is an APC 450VA UPS, where the OEM battery has been replaced with a Tractor Battery. Run time is in excess of five hours, powering a Desktop PC, and a 24" Monitor.
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These two batteries power an APC brand, 600VA UPS, and the run time is in excess of 8 hours.
Either of these two batteries will start my car, if I ever need one in an emergency.
All the batteries that I use, I got from Walmart for $29 ea. They are all of the FULL Maintenance type.
Since they remain on Charge 24x7, they need to be checked every few months, to maintain the proper fluid level.
The acid never goes away, but the water in the battery will boil off in time, so that needs to be replaced, with Distilled Water.
I used to run a Battery Test lab at the Caterpillar Research Center, so I know more about batteries and their care, than I really want to. lol
Cheers Mates, and Merry Christmas!
TM
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