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this post was submitted on 03 Mar 2024
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In addition to ups, an LTE failover. I've had my Comcast crap be offline for hours.
I'd like that, but also a really long-running UPS. multi-hour power outages are surprisingly common in my area.
Thats no longer a UPS.
You could get something like a powerwall, something designed to power things from batteries for a long time.
Or get a generator with an automatic failover. The UPS then covers the downtime between powerfailure and generator taking load
Why is that no longer a UPS?
Generally, UPS (lead acid) batteries are not designed for long-cycle deep discharge.
They are designed to hold their rated load for a minute or so until the power is restored (generators start, power-uncuts) or the servers have a chance to shut down.
But maybe thats dated information, and modern UPSs are designed to run from batteries for a few hours.
That seems like a weirdly and artificially narrow definition of UPS.
Does this require a lot of gear? Or does it simply act as another gateway?
There are devices like the Netgear lm1200 that can do it inline by themselves.
I have that device, but configured as a second gateway. My firewall manages the failover based on primary packet loss and latency.
It requires an LTE capable gateway and a data plan. As for the rest you can simply write your routing tables so that if the main gateway doesn't work, use the secondary gateway with lower prio.