In article ,
Andrew Gabriel wrote:
It would be brilliant if it had some way to make it start charging
automatically after a power failure. You could then use it to build
a very cheap but effective backup power unit.

I agree - but suspect if would then draw current if left connected with no
mains to it. Maybe not much - but undesirable over a long period.

--
*I didn't drive my husband crazy -- I flew him there -- it was faster

Dave Plowman London SW
To e-mail, change noise into sound.