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12-05-2015, 05:41 PM | #1 |
Not Yet Wild
Join Date: Apr 2015
Posts: 62
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Load testing an 8 volt battery
I just got a load tester to test my 8volt batteries but the question is what should the reading drop to when the load is put on each individual battery? Like they start with about 8.6 volts but when they drop what is the lowest the should go to know if they are bad or not?
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12-05-2015, 07:07 PM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: Load testing an 8 volt battery
A golf cart is the best tester. Likely you have a 50 amp or a 100 amp tester. That's good for car batteries but golf cart batteries should be tested at 2 to 3 times this load. The cart itself will provide the load under hard start preferably uphill.
Simple fix alligator clamps to your meter and test each battery. A drop of 1v is acceptable under severe load. a drop of 2v or more indicates a bad cell. Take paper and pen and write down the before voltage and load voltage drop. Post the results here. |
12-05-2015, 08:00 PM | #3 | |
Not Yet Wild
Join Date: Apr 2015
Posts: 62
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Re: Load testing an 8 volt battery
Quote:
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12-05-2015, 09:10 PM | #4 |
Old Sky Soldier
Join Date: Dec 2011
Location: Kentucky
Posts: 3,881
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Re: Load testing an 8 volt battery
The best thing you can do for those batteries is put them on a piece of wood and hook them to a battery maintainer. Until you can put them back in the cart. If you wait until spring they may not make it.
You can hook them all together to do this. |
12-06-2015, 12:26 AM | #5 |
Not Yet Wild
Join Date: Apr 2015
Posts: 62
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Re: Load testing an 8 volt battery
Is there a special battery maintainer I need or can it be a car one? I already have them on a pallet.
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12-05-2015, 11:47 PM | #6 | |
DS Drivers Club Founder
Join Date: Jul 2013
Location: Upstate NY
Posts: 3,428
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Re: Load testing an 8 volt battery
Quote:
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12-06-2015, 12:27 AM | #7 |
Not Yet Wild
Join Date: Apr 2015
Posts: 62
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Re: Load testing an 8 volt battery
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12-06-2015, 03:38 AM | #8 |
Old Sky Soldier
Join Date: Dec 2011
Location: Kentucky
Posts: 3,881
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Re: Load testing an 8 volt battery
Do you have a cart charger?
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11-08-2021, 03:30 PM | #9 |
Getting Wild
Join Date: Jun 2018
Posts: 83
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Re: Load testing an 8 volt battery
so i know this is old thread but i just did this i have 6 T875s if i hook up digital ohm each will drop aprox 1 volt under load,,had an auto garage at one time and happen to have a 100 amp load tester if i check each it shows 3/4 volt drop which is more accurate i don,t know but close to being the same if you add in you,re using battery voltage from pack each time you check 1 battery maybe closer than you think,, just my humble findings
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