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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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08-14-2018, 09:33 PM | #1 |
Gone Wild
Join Date: Jul 2015
Posts: 161
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How high should my charger go?
2001 EZGO TXT, upgraded to 48v. I have a DPI Accusense charger. What’s the highest the voltage should go when charging? Mine was up to 62 or 64v.
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08-15-2018, 06:01 AM | #2 |
Master of All Things
Join Date: May 2013
Location: West Columbia, Texas
Posts: 17,892
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Re: How high should my charger go?
BINGO.....that's what it goes to......its doing its job properly. I have the same charger.
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08-15-2018, 03:25 PM | #3 |
Gone Wild
Join Date: Jul 2015
Posts: 161
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Re: How high should my charger go?
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08-20-2018, 09:15 AM | #4 |
Getting Wild
Join Date: Mar 2018
Location: Georgia
Posts: 91
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Re: How high should my charger go?
I charged my batteries this weekend and mine went to 53.6 volts for about 1 hour and shut off. Battery pack is at 51.9 volts off the charger for 12 hours.
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08-20-2018, 09:38 AM | #5 | |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: How high should my charger go?
Quote:
ref: https://www.trojanbattery.com/tech-s...y-maintenance/ Scroll down to "charging". and this service bulletin (PDF) from US Battery circa 2012 |
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08-21-2018, 07:44 AM | #6 |
Getting Wild
Join Date: Mar 2018
Location: Georgia
Posts: 91
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Re: How high should my charger go?
I thought 51.9 was a good pack. my batteries are new and my cart runs great. Maybe the charger is not going very high because the batteries are not drained. I only drove it 3 miles before I charged it.
The chart shows my batteries are over the full charge. |
08-21-2018, 08:37 AM | #7 |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: How high should my charger go?
The issue isn't the resting voltage. Yours (51.9) is a little high but common for new batteries. My 2+ year old Trojans still rest at 51.1 or so. Varies a little sometimes. (48v pack)
The issue is the the peak voltage during the topping charge (also called the absorption phase) at low current. This should be at least 2.3v per cell (55.2). US battery is saying their batteries should be charged to at least 2.5v per cell (60.0v) Ref: the previously posted TSB Over time, not reaching sufficient peak voltage will result in sulfation and premature reduced capacity. Ref: https://batteryuniversity.com/learn/...d_acid_battery The charger should perform the same no matter the the charge state of the batteries. The cycle will just be much shorter (time) with batteries almost fully charged including reinitiating a charge cycle right after a previous charge cycle (equalizing charge). |
08-22-2018, 07:32 AM | #8 |
Getting Wild
Join Date: Mar 2018
Location: Georgia
Posts: 91
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Re: How high should my charger go?
okay been this way for about 6 months, I will run it more this weekend and then charge it and see what happens. I am using a factory ezgo charger.
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08-22-2018, 08:41 AM | #9 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: How high should my charger go?
hyper1, two points I think are important here.
1. The pack should rest 12-24 hours unused after a charge for the correct settled voltage reading. 2. is the vpc or volts per cell value during recharging. VPC is established as approx 2.3 - 2.6 volts for lead acid batteries. This value is important in maintaining good battery health. Too low of a vpc will result in heavy elements which are separated during use being not being remixed into the battery chemistry during the recharge. Over time this will reduce battery performance. Our 48v chargers use a VPC of 2.5 or 60v cut off for 24 cells. This is a safe cut off for wet cell batteries in general. |
08-22-2018, 08:52 AM | #10 | |
Getting Wild
Join Date: Mar 2018
Location: Georgia
Posts: 91
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Re: How high should my charger go?
Quote:
I will report back in the morning. Wonder why it is not going higher than that and how does it keep my pack charged? I did wait for over 12 hours, really about 24 before I went back out and checked it and the pack was at 51.9 volts off the charger resting. I always unplug it when it is done to keep it from being affected by lightening. This is the charger I am using. I am also using 6 8v batteries. Last edited by hyper1; 08-22-2018 at 08:53 AM.. Reason: more info |
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