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Unread 11-22-2012, 05:26 PM   #1
Not Yet Wild
 
Join Date: Jul 2009
Posts: 1
Default Trojan 1275

I have a cc precedent, I replaced all four batteries in April 2010 and the batteries were all marked c10, so I assume march 10. I also have used an eagle dual pro charger. Since then I have run about 450 cycles, I play lots of golf on a hilly 6000 yard course with lots of stuff, Many days we go 27 holes, sometimes in temps of 50 degrees. I have periodically checked pack voltage after playing and I dont recall ever seeing anything under 48.5, when its cold i always get a lower reading. After playing it always went on the charger asap. A couple weeks ago I noticed my charger was kicking out of float mode and doing its equalization charge. I have religiously checked water, kept the cables spotless, cleaned and tightened terminals and never had any corrosion to speak of. I have always monitored pack and individual voltages as I carry a voltmeter in the cart. I have always had one battery that was about .15 volt lower than the others. In disgust I put the cart up for winter and disconnected the pack and decided I would wait a couple weeks and check it out, so after a couple weeks I tested the voltage ambient temp about 35 degrees, I got 12.5/12.45/12.1/12.3. The battery that has always tested low was the 12.3, the one battery going to 12.1 has always been close to the strongest with voltage so what has happened? I hooked the pack back up and plugged in the charger, I am worried about leaving it on the charger as I dont want to cook my other batteries if it is continually flipping out of float mode. What should I do?, replace the one battery?, leave it plugged in? no golfing here till April so its gonna sit for a while, sorry for the long post and thanks!
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Unread 11-25-2012, 02:39 PM   #2
Gone Wild
 
Join Date: Dec 2010
Posts: 458
Default Re: Trojan 1275

Once the batteries have been charged you shud do a Specific Gravity test on all the cells to see if you have any weak ones, that will give you a better idea of their condition. You can also unplug the charger after a full charge, wait 1 min. then plug it in again, wait 6 mins. then do an on-charge voltage check. A set should be 56 - 63v, (depending on age and condition)then check to see if any individual batteries differ from each other by more than .75 - 1v . Weak ones normally show up.
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