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01-09-2019, 11:28 AM | #1 |
Gone Wild
Join Date: Jul 2013
Location: N. Myrtle Beach
Posts: 151
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Cheap battery load tester?
I see a load tester at harbor freight is $20.00. Anybody ever use one on golf cart batteries?
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01-09-2019, 02:02 PM | #2 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Cheap battery load tester?
It will identify a totally screwed battery, but won't do anything to tell you just how good they are. Won't tell you "ok", "good", "great". It can't put a load on the batteries for long enough to get you great info.
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01-09-2019, 03:39 PM | #3 |
Gone Wild
Join Date: Apr 2013
Location: Deep Run, NC
Posts: 2,544
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Re: Cheap battery load tester?
I bought the 500 amp one they have at Harbour Freight, and it works pretty good. I'll try to find a pic of it.
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01-09-2019, 03:45 PM | #4 |
Gone Wild
Join Date: Apr 2013
Location: Deep Run, NC
Posts: 2,544
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Re: Cheap battery load tester?
It doesn't have a 6 volt setting, but you can dial the amps up to what the battery is rated for and see what the voltage drop is. The 100 amp isn't enough load to really tell anything.
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01-09-2019, 03:55 PM | #5 |
Gone Wild
Join Date: Feb 2013
Location: NC/SC
Posts: 1,012
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Re: Cheap battery load tester?
Why won't this work? Charge the pack completely. Measure the individual battery voltages. Attach the meter to each battery and drive the cart. Record the voltage under load for each battery. The batteries reading the lowest voltage while driving are the weakest.
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01-09-2019, 04:01 PM | #6 | |
Gone Wild
Join Date: Apr 2013
Location: Deep Run, NC
Posts: 2,544
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Re: Cheap battery load tester?
Quote:
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01-09-2019, 04:08 PM | #7 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Cheap battery load tester?
Quote:
I use a DVM with a Min/Max function and a short, steep hill close to my place. |
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01-09-2019, 05:03 PM | #8 |
Gone Wild
Join Date: Jul 2013
Location: N. Myrtle Beach
Posts: 151
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Re: Cheap battery load tester?
Mgray70, when you talk about dial in and breaking point I see me melting a battery down (ha ha). As little as I know about electricity I better stick to the meter and hill thing.
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01-09-2019, 05:42 PM | #9 | |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Cheap battery load tester?
Quote:
If you have a newer Alltrax controllers collect a monitor file while charging the hill, preferably with 2 friends on the cart and post it here... I looked at a file today where the fella was complaining about a new motor not reaching enough speed. Reviewed files & the 48v pack went from 51 to 37 v with a 300 amp draw. I think we found the problem |
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01-09-2019, 06:36 PM | #10 | |
Gone Wild
Join Date: Apr 2013
Location: Deep Run, NC
Posts: 2,544
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Re: Cheap battery load tester?
Quote:
Sent from my SM-G930R4 using Tapatalk |
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