Ummm... What's EDTA and where do you even buy it? Maybe I
can breath some more life into the set of batteries that I replaced about a
year ago.
-----Original Message-----
From: Klein Robert W
NPRI
Sent: Mon 1/31/2005 8:26 AM
To: 'Markus Lorch';
elec-trak cosmos phy tufts edu
Cc:
Subject: RE: (ET)
Evaluate used batteries from golf course
Mark,
I've had a lot of luck in revitalizing old
batteries with EDTA. A tablespoon per cell will help remove the lead sulfate
from the plates. I brought two golf cart batteries back from the dead this
way. They had been run completely down, frozen, drained, exposed to
air, neglected, etc. I added good water with EDTA added, ran them
through some heavy charging cycles and they worked amazingly well right up
until a year later when I was experimenting with on off-gassing charge and
blew the case apart, (but that's another story). Note: I used
these batteries to cut my one acre lawn all suimmer as well as snow plowing
in the winter.
Good luck... Sounds like a great deal.
Bob
K
-----Original Message-----
From: Markus Lorch [mailto:mlorch vt edu]
Sent: Monday,
January 31, 2005 10:16 AM
To: elec-trak cosmos phy tufts edu
Subject:
(ET) Evaluate used batteries from golf course
Hi guys,
I
am going to follow the advice of many list members and will
try to get
some used 6V Golf Cart batts from a golf cart dealer. I hope I'll get them
next to nothing and I told them that I'd want to come to their store, look
at the old ones and pick some.
Now my question:
What to look for
when I have to pick the best 6 that they have.
I'll probably only
have time for a quick look and can't charge the batteries before I pick
them.
Here're my thoughts:
- measure their resting
voltage
- put a reasonable load on them (not sure yet what, some sort
of
resistor in the area of 0.2 Ohm (30A)) and see if the
voltage remains relatively stable for a few minutes.
- avoid "empty"
batteries (look for more than 5.5V)
and "dry"
batteries
Thanks for any
hints
Markus
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