Ezgo PDS with lift issues

wcgolf · 07-09-2016, 04:24 PM

Whatcha think Scottyb?

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wcgolf · 07-11-2016, 03:17 PM

Any thoughts guys. I'm gonna be speaking with the people that sold me the batteries tomorrow so any I put I can give would be awesome.

Mac McCormick
McCormick Construction & Management LLC

scottyb · 07-11-2016, 03:46 PM

You haven't given us a FULL reading yet.
38.2v a good 12 hrs after the charge ends.
Your load test was done on EMPTY batteries that needed a charge so it's really hard for me to offer much.

wcgolf · 07-11-2016, 05:21 PM

Ok just to clarify. I have now had the cart plugged in since that last load test. I will unplug tomorrow and do the load test again. Will that work?

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scottyb · 07-11-2016, 05:41 PM

No - you have an auto charger that cuts off on it's own when the batteries reach a preset voltage. Is that function working? If yes test batteries 12 hours after the charge ends. The reason for this is we want to know the voltage the batteries can retain from a full charge. If just 80% of full that's an indication of 20% capacity lost.
If the charger won't cut off then one of 2 problems exist.
1 is bad batteries can't reach the cut off voltage.
2 is the charger is broken and won't cut off.

Always note the pack voltage under charge before pulling the plug on a charging set. The cutoff # is between 44-46 v +/- 1v

You owe me a beer

wcgolf · 07-11-2016, 09:14 PM

Just for documenting I just checked and charge was reading 39.7 prior to cutting off within 5 minutes. I'll check it in the morning before I go to work should be just under 12 hours

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Clemsoncartguy · 07-11-2016, 11:02 PM

39.7 is too low if it's about to cutoff.

Helirich · 07-12-2016, 06:32 AM

Quote:

Originally Posted by Clemsoncartguy

39.7 is too low if it's about to cutoff.

This! But some chargers have a feature where they only run so long. So if it takes longer than that to reach the "cut off" voltage, it could still be OK. That's why I said this earlier in the thread.

Quote:

Originally Posted by Helirich

I would charge them a few times back to back. Then wait a few hours (after the charger is off) and then see what the voltage is.

Now I will say probably if it take multiple charges, the batteries are getting weak.

wcgolf · 07-12-2016, 05:49 PM

Called Trojan today to talk about my batteries and typical stuff they want me to take it somewhere and have an actual load test done by a battery place with a tester with carbon pile of something and also saying my charger may not be functioning. Typical stuff I expected when you only offer 12 month warranty anyway. The guy did say it acts like its a bad cell in one of the batteries dragging whole pack down but even if so they won't help.

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scottyb · 07-12-2016, 07:16 PM

okay - so what are the voltage readings for each battery now?

07-09-2016, 04:24 PM	#21
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96	Whatcha think Scottyb? Sent from my iPhone using Tapatalk
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96

07-11-2016, 03:17 PM	#22
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96	Any thoughts guys. I'm gonna be speaking with the people that sold me the batteries tomorrow so any I put I can give would be awesome. Mac McCormick McCormick Construction & Management LLC
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96

07-11-2016, 03:46 PM	#23
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,418	Re: Ezgo PDS with lift issues You haven't given us a FULL reading yet. 38.2v a good 12 hrs after the charge ends. Your load test was done on EMPTY batteries that needed a charge so it's really hard for me to offer much.

07-11-2016, 05:21 PM	#24
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96	Ok just to clarify. I have now had the cart plugged in since that last load test. I will unplug tomorrow and do the load test again. Will that work? Sent from my iPhone using Tapatalk
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96

07-11-2016, 05:41 PM	#25
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,418	Re: Ezgo PDS with lift issues No - you have an auto charger that cuts off on it's own when the batteries reach a preset voltage. Is that function working? If yes test batteries 12 hours after the charge ends. The reason for this is we want to know the voltage the batteries can retain from a full charge. If just 80% of full that's an indication of 20% capacity lost. If the charger won't cut off then one of 2 problems exist. 1 is bad batteries can't reach the cut off voltage. 2 is the charger is broken and won't cut off. Always note the pack voltage under charge before pulling the plug on a charging set. The cutoff # is between 44-46 v +/- 1v You owe me a beer

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07-11-2016, 09:14 PM	#26
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96	Just for documenting I just checked and charge was reading 39.7 prior to cutting off within 5 minutes. I'll check it in the morning before I go to work should be just under 12 hours Sent from my iPhone using Tapatalk
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96

07-11-2016, 11:02 PM	#27
Clemsoncartguy Gone Wild Join Date: Apr 2016 Location: Greenwood, SC Posts: 1,291	Re: Ezgo PDS with lift issues 39.7 is too low if it's about to cutoff.

07-12-2016, 05:49 PM	#29
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96	Called Trojan today to talk about my batteries and typical stuff they want me to take it somewhere and have an actual load test done by a battery place with a tester with carbon pile of something and also saying my charger may not be functioning. Typical stuff I expected when you only offer 12 month warranty anyway. The guy did say it acts like its a bad cell in one of the batteries dragging whole pack down but even if so they won't help. Sent from my iPhone using Tapatalk
wcgolf Getting Wild Join Date: Mar 2010 Posts: 96

07-12-2016, 07:16 PM	#30
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,418	Re: Ezgo PDS with lift issues okay - so what are the voltage readings for each battery now?

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