Thanks to folk here a couple of years ago, I learned about
a bunch of mainstream, off-the-shelf, door openers that are
using 12VDC battery "backup", with the motors themselves
running at 12vdc.
The price premium is only a hundred or so dollars above
a standard unit, and that would be a lot cheaper than
running 120vac to the building.
I'm figuring on replacing their standard 12V battery with
a larger capacity unit, and keeping it charged up with a
solar panel. Since the opener only...
sug's for very low maint. low usage charger/batter system?
a bunch of mainstream, off-the-shelf, door openers that are
using 12VDC battery "backup", with the motors themselves
running at 12vdc.
The price premium is only a hundred or so dollars above
a standard unit, and that would be a lot cheaper than
running 120vac to the building.
I'm figuring on replacing their standard 12V battery with
a larger capacity unit, and keeping it charged up with a
solar panel. Since the opener only...
sug's for very low maint. low usage charger/batter system?