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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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07-03-2009, 01:51 PM | #1 |
Not Yet Wild
Join Date: Aug 2008
Posts: 11
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Over Charging?
I just installed a new set of Trojan T-105 batteries in my '96 TXT. I am using a Power Wise charger. I also have a digital volt meter installed on the cart. I am seeing 45.4 volts and approx. 5 amps at the end of the charge cycle. Does this indicate an overcharge of the batteries? The cart had old batteries in it when I purchased it.They would not hold a charge. I checked the SPG and found all were in bad shape. Given the price of new batteries, I want to keep these in good shape. The charger has writing on it that indicates a board was replaced in the past. Could someone have replaced the board with a 48 volt board. I'm not sure if this charger came in 48 volts. I read in one post (Power Wise Charger search) that voltages can run high near the end of the charge cycle. Does this harm the batteries?
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07-03-2009, 02:03 PM | #2 |
Gone Wild
Join Date: Mar 2009
Location: Roseville, CA
Posts: 2,757
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Re: Over Charging?
All is well. Your final charged voltage should read somewhere between 42 and 44 volts right after the charger shuts off. The fully charged resting voltage is around 38.4v.
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07-03-2009, 02:54 PM | #3 |
Gone Wild
Join Date: Dec 2006
Posts: 679
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Re: Over Charging?
45.4V is not bad for end of charge while the charger is still ON. I am concerned about the 5 amps. With new batteries it should be 2 amps or lower. When the pack nears 45V the amps will be up a bit but then the amps should drop unless the voltage climbs higher.
How long does it hold 5 amps at 45.4V before it shuts off? |
07-03-2009, 05:48 PM | #4 | |
Not Yet Wild
Join Date: Aug 2008
Posts: 11
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Re: Over Charging?
Quote:
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07-04-2009, 03:29 PM | #5 |
Gone Wild
Join Date: Dec 2006
Posts: 679
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Re: Over Charging?
Basic rule for GC batteries if they are getting hot shut the charger down and figure out why. They will get a little warm especially when it is 100* outside. If they are cool you are OK but always good to monitor them like you have been.
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07-04-2009, 06:32 PM | #6 |
Gone Wild
Join Date: Jul 2007
Posts: 829
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Re: Over Charging?
Nate the Powerwise operates on the range of the 5amp end of charge, that is correct. Even on new batteries. I see no issue here being those new batteries.
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07-04-2009, 08:46 PM | #7 |
Gone Wild
Join Date: Mar 2009
Location: Roseville, CA
Posts: 2,757
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Re: Over Charging?
I have a 42v Lester Charger on my cart and it finish charges at 53.8v with a 5 amp finish rate as well. My batteries are 5 year old Trojan T-105's.
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07-05-2009, 11:44 AM | #8 |
Gone Wild
Join Date: Dec 2006
Posts: 679
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Re: Over Charging?
If you guys are all getting 5 amp finish rates then that must be what they are set at. I hope I did not mislead any one on that point, I probably should note I don't follow typical setups and don't use factory wiring or chargers. Some of you know this but new folks wouldn't.
5-amp finish rate is good for factory then. |
07-08-2009, 06:00 PM | #9 | |
Not Yet Wild
Join Date: Aug 2008
Posts: 11
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Re: Over Charging?
Quote:
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07-08-2009, 06:22 PM | #10 |
Gone Wild
Join Date: Jan 2009
Location: Alabama
Posts: 2,120
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Re: Over Charging?
I bet the cart runs good!
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