Mailinglist Archive: opensuse (1620 mails)

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Re: [opensuse] UPS : replacing battery with 12 volt Jelly Car Battery
I should have been more specific. Sorry. That's what happens when
interrupted and distracted.

It's already pretty well established that more battery means more run
time, provided the UPS is up to the task. Assuming, naturally, that the
load is within the UPS range.

But the UPS itself also has limitations: It may not be designed to
operate even unloaded for more than a few minutes or even for a few
times. It may not be able to charge a battery more than a few times.
In this case it does not matter how much battery you have or what the
load is.

Industrial UPS and solar/wind UPS makers do tell you what all the specs
are. Fortunately, in nearly all cases, they are designed to run
continuously. But that is not the same for "consumer" backup UPS. I
have yet to see one with anything about how long one could run given
enough battery. In fact, the manufacturers all say, "Don't do it!"

I guess it's better to just avoid taking a risk and pay the much higher
price for one that actually says it will run continuously.

jd

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