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01-18-2020, 08:57 AM | #1 |
Not Yet Wild
Join Date: Jul 2019
Location: SW Michigan
Posts: 19
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Load testers
What battery load tester do you recommend for doing 6-8-12 volt batteries?
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01-18-2020, 09:37 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,356
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Re: Load testers
The golf cart is the BEST load tester. Simply install or put a voltmeter on the pack and head up a hill = bigger load than any cheap tester.
Another alternative is a professional Lester battery draw-down tester. I think these run anywhere from 400-600 dollars. https://lesterelectrical.com/product...harger-tester/ |
01-18-2020, 10:10 AM | #3 |
Not Yet Wild
Join Date: Jul 2019
Location: SW Michigan
Posts: 19
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Re: Load testers
That’s a great solution but I want to be able to test individual batteries. Thanks for the reply.
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01-18-2020, 01:34 PM | #4 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,356
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Re: Load testers
Clip the meter on 1 battery at a time and make 6 runs up the hill, record all 6 low readings. You will have a pretty good picture of the batteries then... assuming steep hill and a passenger
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01-18-2020, 03:02 PM | #5 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Load testers
Or you can keep talking yourself into that cheap harbor freight load tester. I can tell you, all those are good for is spotting "totally screwed" batteries when it comes to golf cart batteries.
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01-18-2020, 04:31 PM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,356
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Re: Load testers
And you can do that with the handheld voltmeter you or your neighbor already have.... even if it's analog
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01-18-2020, 11:32 PM | #7 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: Load testers
I agree that for accurate testing the Golf Cart is the best tester. But I do have one of those harbor freight testers as well. If you read it correctly, it can be useful in spotting weak batteries in a pack quickly.
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04-05-2020, 03:18 PM | #8 |
Not Yet Wild
Join Date: Mar 2020
Posts: 4
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Re: Load testers
What’s the lowest the battery voltage should drop when driving up a hill? The cart I have is a 2016 G29. I am seeing a 6 volt drop on steep hills. The batteries are less that three years old, have been cleaned and have fresh 4ga cables.
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04-05-2020, 03:32 PM | #9 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,356
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Re: Load testers
6v drop on a 48v pack is marginally bad which means if there is just one person in the cart or the hill is modest that's a bad reading. And those batteries could be on their way out
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04-06-2020, 03:38 PM | #10 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Load testers
If you mash the gas and it drops to 42v, and stays there for more than about a half a second, you got battery problems.
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