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Old 03-11-2014, 01:40 PM   #21
kuntekente
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Default Re: Cart Runs Slow

It has always been slow. I purchased it in December.The a battery bank voltage is what I posted after charging all night. I just replaced all the batteries last week and then posted the voltage. The connectors all look fine but I will look again.

When you say the voltage is low I wonder how a 48v battery setup is supposed to have over 48v. Am I misunderstanding?

Thanks!
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Old 03-11-2014, 01:58 PM   #22
yurtle
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Default Re: Cart Runs Slow

The great thing about a 48 volt bank is you can remember this crude approximation:

51v 100%
50.5v 90%
50v 80%
49.5v 70%
49v 60%
48.5v 50%

50% is considered dead.
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Old 03-11-2014, 02:14 PM   #23
yurtle
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Default Re: Cart Runs Slow

Here are better numbers from JohnnyB:
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Old 03-11-2014, 02:15 PM   #24
branson
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Default Re: Cart Runs Slow

it sounds like you should do some reading on battery care and maintenance. go to Scotty b's website cartsunlimited.net. you can read about battery care and maintenance as well as break in. it sounds like maybe your charger is not charging your battery fully.
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Old 03-11-2014, 02:39 PM   #25
Olman
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Default Re: Cart Runs Slow

Quote:
Originally Posted by kuntekente View Post
It has always been slow. I purchased it in December.The a battery bank voltage is what I posted after charging all night. I just replaced all the batteries last week and then posted the voltage. The connectors all look fine but I will look again.

When you say the voltage is low I wonder how a 48v battery setup is supposed to have over 48v. Am I misunderstanding?

Thanks!
I try my best to recharge at an at rest voltage of 50 volts. Look at the sticker I put above my DVM. I have a toggle on the DVM to check my aux 12 volt battery so that is what the recharge @ 12.5 volts is for.
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Old 03-11-2014, 03:18 PM   #26
kuntekente
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Default Re: Cart Runs Slow

So I was reading the battery voltage. When I put the Voltmeter to the charge port I show 52v standing still. 49.7 when I depress the throttle 100% then comes back to 49.5v. I have AGM batteries and so I don't think I need to do anything to them. I have been breaking them in.
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Old 03-11-2014, 03:29 PM   #27
yurtle
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Default Re: Cart Runs Slow

Standing still voltage doesn't mean much, unless it was taken at least 12 after charge completion OR driven a short distance, then allowed to recover a few minutes. 52 is too high, and 49.5 is too low.

Likely no problem, but a problem in time of measurements.
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Old 03-11-2014, 03:50 PM   #28
yurtle
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Default Re: Cart Runs Slow

Quote:
Originally Posted by kuntekente View Post
So I was reading the battery voltage. When I put the Voltmeter to the charge port I show 52v standing still. 49.7 when I depress the throttle 100% then comes back to 49.5v. I have AGM batteries and so I don't think I need to do anything to them. I have been breaking them in.
Maybe a typo? You get 49.7 at 100% throttle, then it DROPS down to 49.5 at rest?
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Old 03-11-2014, 04:59 PM   #29
kuntekente
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Default Re: Cart Runs Slow

Drops to 47.9 momentary when the pedal is depressed then comes back up. Sorry I apparently can't read.
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Old 03-11-2014, 05:03 PM   #30
yurtle
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Default Re: Cart Runs Slow

We all typo, and spell checker can sometimes take a correct word and make it wrong.
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