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05-02-2016, 02:39 PM | #1 |
Not Yet Wild
Join Date: Apr 2016
Location: Newark, MD
Posts: 18
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Battery test / load test
I was reading another guys post where he's having trouble with his batteries dying after just a short time of use (its a '90 CC 36V, mine's an '87)), he was told to test each battery under a load, my question is; how do you put a load on a 6 volt battery one at a time when the motor is 36volt, plus I've read on here that you shouldn't run the motor without a load on it - can someone explain, I'm not having trouble with mine yet - but I'm sure I will ) (I'd be a little uncomfortable jacking up the rear end of that heavy sucker and flooring it, if it shook off the jack stands LOOK OUT ! ) Thanks !
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05-02-2016, 02:55 PM | #2 |
Gone Wild
Join Date: Dec 2013
Location: SE Louisiana
Posts: 257
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Re: Battery test / load test
Use alligator clips and clip your DVM to one battery and take a short ride while monitoring you voltage on the DVM. Repeat for the rest of the batts.
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05-02-2016, 03:19 PM | #3 |
Gone Wild
Join Date: Apr 2014
Location: Oregon City, Or
Posts: 1,977
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Re: Battery test / load test
About the motor running without a load on it- Yes, you shouldn't spin a motor AT FULL SPEED without a load on it because it can self-destruct with shrapnel. You can bump the throttle for a second to verify rotation (forward or reverse) without harm.
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05-02-2016, 03:27 PM | #4 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,193
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Re: Battery test / load test
Best way to load test is while driving the cart. Clip to one battery at a time and get a reading under acceleration and one at rest. That is a real world load test.
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05-02-2016, 09:49 PM | #5 | |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: Battery test / load test
Quote:
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05-03-2016, 12:08 AM | #6 |
Gone Wild
Join Date: Jun 2014
Location: Green Valley, Az
Posts: 678
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Re: Battery test / load test
Or load test them with a carbon pile load tester from Northern Supply....about $69.95 plus freight.
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05-03-2016, 04:55 AM | #7 |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: Battery test / load test
At what voltage? Hard to find a load tester that works in 6, 8 and 12 volts to test individual voltage much less one that allows for entire pack voltage at 36 to 48 volts so that one may see how the pack works together....
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05-03-2016, 08:40 AM | #8 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,193
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Re: Battery test / load test
Your cart is a free built in load tester. Hook up your DVM and drive it.
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05-03-2016, 02:47 PM | #9 |
Not Yet Wild
Join Date: Apr 2016
Location: Newark, MD
Posts: 18
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Re: Battery test / load test
GREAT ! Learned something again thanks you all - I was thinking a "load test" would be an amp draw of the motor but now I see its a possible voltage drop on 1 or more batteries (its tricky retro-fitting my brain from servicing AC circuits in HVAC/R and food service equipment to DC golf carts - and the BLACK ground is really a struggle lol ) thanks again
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05-03-2016, 02:49 PM | #10 |
Not Yet Wild
Join Date: Apr 2016
Location: Newark, MD
Posts: 18
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Re: Battery test / load test
Oh , and a DVM is a "digital volt meter" right ?
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