D
danny burstein
- Jan 1, 1970
- 0
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 activates for a minute
or so (if even that) and only a few times/day, the numbers
should make sense.
My biggest concern is the low maintenance issue. It's got to
just be able to sit there with no one tweaking it for a
couple of years at a time. (replacing the battery every
five years or so would work).
In other words, I can't have it overcharging... or for
that matter, stopping charge when the battery's too low.
Suggestions?
Thanks.
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 activates for a minute
or so (if even that) and only a few times/day, the numbers
should make sense.
My biggest concern is the low maintenance issue. It's got to
just be able to sit there with no one tweaking it for a
couple of years at a time. (replacing the battery every
five years or so would work).
In other words, I can't have it overcharging... or for
that matter, stopping charge when the battery's too low.
Suggestions?
Thanks.