You’re right, it’s not much, but it is convenient and clean. A few lamps, USB charging, and a router/modem will use a few tens of watts and the big power pack will keep that going for eight hours.
For longer outages there is an outhouse with triple-redundant generators:
- Honda c. 2005
- Honda c. 1985
- Briggs & Stratton c. 1940
The “redundancy” here is that the first is to provide power in the event of a long power outage, and the other two are redundant museum pieces (which turn over!)
Also generators are still cheap compared to batteries?