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Power outage worries (feddit.it)

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

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Hi fellow hosters!

I do selfhost lots of stuff, starting from the classical '*Arrs all the way to SilberBullet and photos services.

I even have two ISPs at home to manage failover in case one goes down, in fact I do rely on my home services a lot specially when I am not at home.

The main server is a powerful but older laptop to which i have recently replaced the battery because of its age, but my storage is composed of two raid arrays, which are of course external jbods, and with external power supplies.

A few years ago I purchased a cheap UPS, basically this one: EPYC® TETRYS - UPS https://amzn.eu/d/iTYYNsc

Which works just fine and can sustain the two raids for long enough until any small power outage is gone.

The downside is that the battery itself degrades quickly and every one or two years top it needs to be replaced, which is not only a cost but also an inconvenience because i usually find out always the worst possible time (power outage), of course!

How do you tackle the issue in your setups?

I need to mention that I live in the countryside. Power outages are like once or twice per year, so not big deal, just annoying.

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[–] [email protected] 7 points 2 months ago (1 children)

Plus lead acid batteries hate being discharged at all. But deep charge cycles are really awful for them.

That said changing batteries every 18 months is a little excessive. Unless your UPS is overcharging the shit out of them they should last way longer than that.

[–] [email protected] 5 points 2 months ago

Little bit of A, little bit of B.

I probably go through at least one full discharge cycle a month, if not more because the power around here suuucks. (The NAS goes down, but I leave the network gear up until the UPS dies, because fuck it, why not.)

It's also a ~10 year old UPS that likes to eat a $25 battery every 18 or so months so I just haven't really had any justification to replace the whole thing yet since there's an awful lot of $25 batteries in a new UPS.