Bob, 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. --joe -----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 _______________________________________________ Elec-trak mailing list Elec-trak cosmos phy tufts edu https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak _______________________________________________ Elec-trak mailing list Elec-trak cosmos phy tufts edu https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
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