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Unread 12-04-2011, 06:42 PM   #1
Not Yet Wild
 
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Default Studdering

I have a 48 volt cart, batteries test full charge. When I depress pedal the cart moves normal for acouple of feet then it begins to studder as if it don't have voltage. If I check the batteries they still show full charge.
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Unread 12-04-2011, 06:50 PM   #2
The Last Moja Morani
 
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Default Re: Studdering

you need to load test the batteries........they are failing under load and thats what the cart starts doing............................
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Unread 12-04-2011, 06:52 PM   #3
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Default Re: Studdering

step one: check all the conections, are they clean, tight, not hot?
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Unread 12-04-2011, 07:29 PM   #4
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Default Re: Studdering

I should have mentioned, when this first happened I cleaned every cable.The only ones I didn't do where the ones on the motor itself. I tested each batt individually and all 6 before and after trying to run it, no voltage drop at all. The batteries are less than a year old.
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Unread 12-04-2011, 08:20 PM   #5
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Default Re: Studdering

an easy test is to try running until the problem occures and then, using you hands, feel the cables and connections and feel for hot spots.
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Unread 12-04-2011, 08:25 PM   #6
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Default Re: Studdering

Connect the DVM to the battery pack mains with tape or ? so you can put the meter on the seat and go for a drive... what does the voltage drop to? What is it when standing still?
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Unread 12-04-2011, 09:28 PM   #7
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Default Re: Studdering

it only takes 1 to drop to far and even new ones sometimes can be bad but what your decribing is classic battery failure under load...........................
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Unread 12-05-2011, 07:50 PM   #8
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Default Re: Studdering

Well it looks like 2 of the batteries drop voltage down to 4.5 under load. Do you think the epsom salt trick will buy me some life ?
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Unread 12-05-2011, 08:01 PM   #9
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Default Re: Studdering

since they are bad anyway,,,, it can't hurt,,, I've done it with good results. I've got a set that I salted a year ago and still using.
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Unread 12-05-2011, 09:48 PM   #10
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Default Re: Studdering

Quote:
Originally Posted by WannaRide View Post
Well it looks like 2 of the batteries drop voltage down to 4.5 under load. Do you think the epsom salt trick will buy me some life ?
ok so it was a few batteries...............its your money you can do this however you like.......me i wouldn,t waste the time but thats just my opinion...........................
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