Hello rickman!

28 Jun 17 19:04, you wrote to me:
 ri> I have a rather old UPS for keeping my Internet modem and router
 ri> running when the power goes down.  When I have a Pi running, I just
 ri> add it to the UPS.  The real killer is the monitor though, as it uses
 ri> more than the 2 or 3 watts the other devices use.  Well, actually, the
 ri> real killer is my WISP. If I lose power for 1 minute, they seem to
 ri> lose power for hours or their equipment is whacked and has to be
 ri> replaced again taking hours.  So I have better up time ratings than
 ri> they do.

I've got all things critical on AC UPS's.... I've maxed out the UPS's I have,
for critical things... EXCEPT the situation with some Pi's..

The critical stuff routers, switches etc.. is all set up for USP till the
generator starts.. I need about 5 minutes max on that...

For me taking and getting another AC UPS v. a DC UPS ie: these USB battery
things... seems over kill

AC UPS to power 3-4 AC to 5VDC USB adaptors.. the Pi's are all headless...

At this point since it actually may be less headache to the option I considered
 first... Since finding any of these USB batteries that will charge and ouput
5VDC at the same time is more hit or miss.



Rick


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