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-   -   Load testing an 8 volt battery (https://www.buggiesgonewild.com/showthread.php?t=113126)

87chevy 12-05-2015 05:41 PM
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?

scottyb 12-05-2015 07:07 PM
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.

87chevy 12-05-2015 08:00 PM
Re: Load testing an 8 volt battery
 
Quote:
Originally Posted by scottyb (Post 1223766)
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.
Okay that sounds good. I can't really drive the cart as of right now I took it apart to change the frame out and I live in New York so I decided to make it a winter project. I was really hoping I could test the batteries individually since they were out of the cart and just sitting in the basement. But I guess I have to wait until spring to try them out.

mrgolf 12-05-2015 09:10 PM
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.

CCFanatic 12-05-2015 11:47 PM
Re: Load testing an 8 volt battery
 
Quote:
Originally Posted by 87chevy (Post 1223783)
Okay that sounds good. I can't really drive the cart as of right now I took it apart to change the frame out and I live in New York so I decided to make it a winter project. I was really hoping I could test the batteries individually since they were out of the cart and just sitting in the basement. But I guess I have to wait until spring to try them out.
Where in NY are you?

87chevy 12-06-2015 12:26 AM
Re: Load testing an 8 volt battery
 
Quote:
Originally Posted by mrgolf (Post 1223792)
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.
Is there a special battery maintainer I need or can it be a car one? I already have them on a pallet.

87chevy 12-06-2015 12:27 AM
Re: Load testing an 8 volt battery
 
Quote:
Originally Posted by CCFanatic (Post 1223823)
Where in NY are you?
Poughkeepsie area!

mrgolf 12-06-2015 03:38 AM
Re: Load testing an 8 volt battery
 
Do you have a cart charger?

87chevy 12-06-2015 12:01 PM
Re: Load testing an 8 volt battery
 
Quote:
Originally Posted by mrgolf (Post 1223834)
Do you have a cart charger?
Yeah I do but like just the normal one that I plug into the cart

mrgolf 12-06-2015 04:15 PM
Re: Load testing an 8 volt battery
 
It may be worth it for you to buy a 48 volt battery maintainer.


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