On Tue, 19 Nov 2013 20:33:09 -0600, Nightcrawler® wrote:

Some stand alone units have their own A/C charger that switches
off of utility when the generator is running. It all depends on
how many bells and whistles are included with the package.

Actually, I've had to replace the battery, so, I had to read the
manual, and I'm positive it runs exactly one week after I hit
the switch.

So, I'm positive it's a 7-day thing, to the hour.

It runs for 20 minutes, to the minute.

So, at least *this* generac is dumb.