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Old 03-05-2014, 07:36 PM   #11
radioman
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Default Re: Cart Runs Slow

Check the tire pressures.
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Old 03-06-2014, 01:20 PM   #12
kuntekente
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Default Re: Cart Runs Slow

So I was able to verify the voltages. 49.7v sitting still. When the throttle is fully depressed it drops to 45.5v and recovers when 11mph is achieved to about 47.5v.

Does this sound about right?
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Old 03-06-2014, 02:23 PM   #13
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Default Re: Cart Runs Slow

Now you are providing useful information. There are a number of forum members that can help you. I am no expert but it sounds a little low for a 48 volt system.
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Old 03-06-2014, 02:27 PM   #14
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Default Re: Cart Runs Slow

Thanks Radioman. I hope I hear from some members soon. As mentioned I am new to this so I am figuring out what information is needed when I post.
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Old 03-06-2014, 02:39 PM   #15
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Default Re: Cart Runs Slow

Quote:
Originally Posted by kuntekente View Post
Thanks Radioman. I hope I hear from some members soon. As mentioned I am new to this so I am figuring out what information is needed when I post.
You can use the search feature on this site to find additional information about battery voltages from earlier posts. search "48 volt battery charger fault"
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Old 03-07-2014, 01:44 PM   #16
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Default Re: Cart Runs Slow

So far I have not found anything about this issue but I could be doing it wrong. (Fail)
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Old 03-07-2014, 07:39 PM   #17
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Default Re: Cart Runs Slow

At the top of these forums there is a search option at the top of the page. There is a battery voltage chart on one of the post. Click on Enter and enter the search name "48 volt battery charger fault" in the drop down. You will find information you are looking for. Note; SoC means state of charge, a voltage measured to indicate if the batteries are charged to full capacity. You might have a weak battery or batteries of a weak charger. There is not many problems with golf carts that haven't been discussed on this forum.
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Old 03-07-2014, 07:42 PM   #18
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Default Re: Cart Runs Slow

Quote:
Originally Posted by radioman View Post
Old 02-09-2014, 11:21 AM #4
JohnnieB
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--------------------------------------------------------------------------------

Oops - overlooked the fact 48V was mentioned in the title.

Those voltages are way too low. 47.1V is less than 30% SoC. (See attached)

The 48V PW-QE goes throws a battery fault error if the pack voltage is less than 36V, but the voltage is above that now, so it might work.
Unplug the charger for the wall outlet to reset it and then initiate another charge cycle.

Your friend should do himself and his batteries a favor and get one of these: http://www.cartsunlimited.net/Digita...ry_Meters.html
Attached Thumbnails
48 volt battery charger fault-johnniebs-soc-chart.jpg
For some reason the link did not work. I will charge the batteries up again and reset. Thanks
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Old 03-10-2014, 03:31 PM   #19
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Default Re: Cart Runs Slow

Bump - any ideas?
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Old 03-11-2014, 01:14 PM   #20
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Default Re: Cart Runs Slow

How fast did it used to run? Does your charger have an amp meter on it? Does it charge properly and what is the voltage of the battery bank when it completes the charge cycle? After charging completes let it sit overnight and check the terminal voltage again. Have you kept the batteries maintained? Are the posts clean? You could have a battery problem, corroded connection or a charger problem. According to other information posted by users on this forum your voltage is a little low. Have you checked the electrolyte in the cells?
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