UPS / Battery Backup (600VA+)
Protects an always-on local AI server from data corruption during a power outage - cheap insurance for a machine nobody is watching.
Why an always-on machine needs this
Once your setup is running the way Going Headless describes, it's a quiet little server sitting somewhere out of the way - which also means nobody's watching it when the power flickers. A sudden outage mid-write can corrupt Open WebUI's database or leave a model download half-finished, exactly the kind of failure Backing Up Your Local AI Setup is meant to protect against in the first place.
A UPS (uninterruptible power supply) is a battery that sits between the wall outlet and your mini PC. A short outage just passes through unnoticed; a longer one gives you enough runtime to shut down cleanly instead of losing power mid-write.
What to look for
- 600VA is plenty for a single mini PC - you're not trying to run a whole office through it
- A model with a USB connection for automatic safe-shutdown signaling, not just a battery
- Enough outlets for the mini PC and its network switch or router, if that's on the same circuit
We don't pin this to one specific model - UPS lineups change and regional availability varies more than most hardware. This search link goes straight to current 600VA-class options on Amazon:
See current UPS options on Amazon →This is an Amazon affiliate link. We may earn a small commission at no extra cost to you - it's one of the ways this site stays free.