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04-19-2012, 04:08 PM | #1 |
Not Yet Wild
Join Date: Apr 2012
Posts: 3
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Battery voltage under load
How much should the voltage drop per battery when load testing? This is a 2001 48v series cart.
Thanks |
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04-19-2012, 04:45 PM | #2 |
Medicare Recipient
Join Date: Jun 2011
Location: West Michigan
Posts: 3,541
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Re: Battery voltage under load
Post your numbers . . .
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04-19-2012, 05:41 PM | #3 |
Not Yet Wild
Join Date: Apr 2012
Posts: 3
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Re: Battery voltage under load
All batteries are 8.2-8.3 at rest. When pedal is pressed drops to 7.0 and then goes up to 7.5 on level turf. Going down hill or coasting they will go up to 8.1. The reason I am asking is that the cart is slow and after 9 holes of golf it will jerk (studder) when going up hill or if I press the pedal fast. If I press it slowly it might studder a little. But, not as bad.
All connections are tight. I have not checked the sg of the batteries yet. The batteries are probably 4-5 years old. The cart has always been slower than any ez go 36v. Thanks |
04-19-2012, 08:11 PM | #4 |
The Last Moja Morani
Join Date: Jan 2007
Location: jumping from cart to cart
Posts: 8,975
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Re: Battery voltage under load
what your decribing is a battery issue they may not be recovering as they should so it might be time..................................
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04-20-2012, 05:59 AM | #5 |
Not Yet Wild
Join Date: Apr 2012
Posts: 3
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Re: Battery voltage under load
That's what I thought. Thank you for reply. I wanted to make sure it wasn't the mcor or speed controller.
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04-20-2012, 08:21 AM | #6 |
......................
Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
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Re: Battery voltage under load
if you fully charged your batteries, and they were off the charger for 12 hours before you took the readings that you posted, then yes you need new batteries, your batteries are only at 50% not good, this is why your cart don't last on the golf course, and is jerking
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04-20-2012, 08:34 AM | #7 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Battery voltage under load
You don't want to see the 8v battery go much below 7.8-7.9 under load. That's about 47v. On a steep hill, momentary dips to 45v would be okay but recovery should be immediate once the load is reduced. There should never be any shuddering.
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04-20-2012, 11:05 AM | #8 | |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Battery voltage under load
Quote:
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