The
ones I have seen in the past were low current draw with an operating voltage
in the ttl level range (at or near 5 v).
It
takes a lot of discharge to bring a 12 volt battery with anything more than
minimal a plate area from 12.52 volts (minimum voltage for a battery at
"idle" before needing re-charge) to below 5 volts. The 12.52V figure
will be challenged, and likely isn't pertinent today; merely given as the
benchmark that Johnson Controls and Sears Automotive Training used in their
presentations about lead-acid batteries of the early
1980s.
I'm
not saying that it isn't possible for someone to find a way not to get it to
work... Murphy is a Full-Time employee and is ACLU Compliant - Never
discriminates.
A
few weeks of very cloudy weather, inefficient solar panel(s), bad cell(s) in
the battery, etc. could deeply discharge a battery. anything is
possible.
There are no free lunches, and there is no 1 to 1 mechanical
advantage. However, if your repeater eats light, and Mother Nature
cooperates, this design is reported to work.
FWIW,
David
KD4NUE
This gadget is gonna charge the batteries, then use power from the
batteries to
run itself?
Sorry, folks, but all my electrical engineering background says no
way.
There's no free lunch.
Dick
----- Original Message -----
Sent: 19 February, 2006 22:32
Subject: RE: [Repeater-Builder] Solar-Wind Powered
Repeaters
Found this while browsing for generators:
http://www.lutec.com.au/index.htm
Might
be a good idea for remote repeaters other than wind or solar.
Dakota
Summerhawk
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