Make Magazine some years ago had a little project called a Joule Thief
wherein you made a little circuit (actually just a coupla bits wired up)
with an LED and applied it to a dead battery to make the LED come on.
It worked! Was kinda fun using some bits I recovered off old circuit
boards. I think I still have it in a drawer somewhere, was amusing for
a few minutes but I suppose it would be useful in some situations.
http://www.instructables.com/id/Making-A-Simple-Joule-Thief-made-easy/
--FT
On 9/29/16 12:23 AM, clay via Mercedes wrote:
There are a bunch of these folks who collect older batteries that would be
failures in a car, but have the ability to procure some voltage. They stock up
on them to make a storage system. They also collect the used AA-D cell and
suck those dry as well. Real Bottom feeding and reduced re-use
clay
2002 s430 - Victor, a Stately & well tailored chap
1974 450sl - Frosch - Two tone green
1986 SDL - Polei
retired models-
1976 300D - Blei Vanst - it looks silvery
1972 220D - Gump - She was green, simple and ran
1995 E300D - Gave her life to save me against a Dame in a SUV
POS 1987 SDL - Beware Nigerian Scammers
On Sep 27, 2016, at 9:12 PM, Floyd Thursby via Mercedes <mercedes@okiebenz.com>
wrote:
Deep cycle/marine not car batteries?
--FT
On 9/27/16 11:32 PM, clay via Mercedes wrote:
The eco freak solar/off the grid people need some way to store power for when
the wind goes out and the sun fades
On Sep 27, 2016, at 8:22 AM, Andrew Strasfogel via Mercedes
<mercedes@okiebenz.com> wrote:
To make money?
On Sep 27, 2016 9:51 AM, "Floyd Thursby via Mercedes" <mercedes@okiebenz.com>
wrote:
Why would the HD be selling car batteries?
--FT
On 9/26/16 5:02 PM, Andrew Strasfogel via Mercedes wrote:
I don't know how long Home Depot has been selling these. A battery to fit
Mercedes turbodiesels with 850 CCAs is only $99.00. Way cheaper than the
equivalent Diehard...
Are these any good? They used to be standard issue at the local gas
stations.
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--FT
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--FT
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