On: I don't think the cheapest APC Back-UPS units can ...

[bongodongobob]

Nonsense. UPS's don't pose any sort of serious fire risk. UPSs starting on fire are exceedingly rare. Sure, it's probably happened. People get hit by lightning too.

[silon42 → bongodongobob]

I'd guess they are certainly safer than a laptop, but it depends on a manufacturer... (I've seen lots of "balooned" laptops, including many Macs)

[tristor → bongodongobob]

Not to be snarky, but UPS fires are one of the leading causes of datacenter fires: https://duckduckgo.com/?hps=1&q=UPS+Fire+datacenter&ia=web

[bongodongobob → tristor]

Right and data center fires are extremely rare. Think of how many UPSs are in the wild. The failure by fire rate is probably something like 0.000001%.