T-Grizzly
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Joined: Thu Oct 20, 2022 1:22 am

Ups modual mains switch V drop

Thu Dec 01, 2022 10:10 am

Pi powered via UPS modual when I switch from mains to battery their is a voltage drop just large enough to power down the pi is it possible to even this out with a few capacitors or would I need a better ups module?

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neilgl
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Location: Near The National Museum of Computing

Re: Ups modual mains switch V drop

Mon Dec 12, 2022 2:11 pm

What UPS module is it?
I’m using an APC Back-UPS 700 to power a pi4 and the fibre modem and a router - seems to work ok.

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neilgl
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Location: Near The National Museum of Computing

Re: Ups modual mains switch V drop

Mon Dec 12, 2022 2:22 pm


MarkDH102
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Re: Ups modual mains switch V drop

Tue Dec 13, 2022 7:14 am

I have this model of APC Back UPS

BE850G2-UK

I too run a Vodafone modem and fibre box plus a Pi3 running PiHole.
We have many power cuts. Ranging from 1s or less up to 6 hours.
I've never had any of the equipment drop out.
The only thing I will say, is that I only get 1 hour of use from the backup which I think is poor for a 850VA system.

memjr
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Joined: Fri Aug 21, 2020 5:59 pm

Re: Ups modual mains switch V drop

Tue Dec 13, 2022 7:29 pm

Get a proper computer UPS. USP modules "made for the Pi" are just an expensive joke/crap.

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