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Old 01-10-2014, 02:47 PM   #1
plantguy90
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Default battery load tester

Quick question, see a bunch of cheap 6/12volt testers on ebay that are rated to 100 amps, are those enough to test cart batteries to see if they are good under a load?
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Old 01-10-2014, 07:53 PM   #2
simple man
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Default Re: battery load tester

It will give you an idea, but it won't test the capacity of the battery. If you have a dead cell in a battery, it will show you that. Consider that the average amps used while a cart is running on smooth ground is around 60 amps. The batteries have to supply this current for over an hour!
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Old 01-10-2014, 11:04 PM   #3
scottyb
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Default Re: battery load tester

A handy load tester is the one the battery sits in. Head up hill hard from a stand still and see what the pack drops to..... You just made a 200 amp draw test. Trying to find a weak battery in the pack? Put a hand held meter on each individual battery and repeat up hill test..... record the results... post them here if you need help deciphering them.
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Old 01-11-2014, 03:39 PM   #4
plantguy90
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Default Re: battery load tester

Tried that once,

on one cart with 2 new batteries and 4 old ones, the old ones began about 6.3 but went down to:

A: 5.5
B: 5.5
c: 5.5
d: 5.7

on the other cart, readings went down to:

5.75
5.78
5.81
(haven't got to the other 3 yet)

in all cases upon stopping batteries went back to 6.3-6.5
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Old 01-11-2014, 09:49 PM   #5
pachanga90
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Default Re: battery load tester

Yep,either the "Hand-Held Meter-Test" or else you will need a Load-Tester capable of drawing at least 1/2 the CCA-Rating of the battery to properly test them.The small handhelds aren't very good for cart batteries.I bought an Electronic one from Snap-On,and I don't trust it.It tests fine one day,then the next time its' way off.A good Carbon-Pile tester is the only way to go if you are testing them out of the cart.Hope this helps.
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Old 01-11-2014, 10:46 PM   #6
scottyb
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Default Re: battery load tester

What Pachanga says -
I paid more for my load tester than 2 sets of T105s
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Old 01-12-2014, 07:15 AM   #7
sportcoupe
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Default Re: battery load tester

Quote:
Originally Posted by scottyb View Post
A handy load tester is the one the battery sits in. Head up hill hard from a stand still and see what the pack drops to..... You just made a 200 amp draw test. Trying to find a weak battery in the pack? Put a hand held meter on each individual battery and repeat up hill test..... record the results... post them here if you need help deciphering them.
That's great in theory but without a hill for 30 mile radius, it's pretty much impossible to execute in my area.

It was once suggested I put the cart up against a stationary object like a wall or light pole for load check. I had to remind them how bad an idea that was.
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Old 01-12-2014, 09:09 AM   #8
scottyb
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Default Re: battery load tester

Quote:
Originally Posted by sportcoupe View Post
That's great in theory but without a hill for 30 mile radius, it's pretty much impossible to execute in my area.

It was once suggested I put the cart up against a stationary object like a wall or light pole for load check. I had to remind them how bad an idea that was.
If you don't have a hill you apply additional load by adding weight to the cart - ask 3 big friends to come over for refreshments and a few short golf cart rides.
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