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Old 05-29-2012, 07:11 PM   post #1 of 5
theroosterb
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Default draw on battery

I have a nice multimeter but dont know how to use it too well.
I am not good with electrical.
Here is my problem.
I have a John Deere 140 H3 lawn tractor with a new battery in it for snowblowing.
Last I ran it was about january and it sat with battery conected since then.
I went out to start it yesterday and battery was dead.
It was down to 1.8 volts
So I would like to test to see if there is any draw on the battery with everything off.
I dont know how to do that.
I charged the battery and it shows 12.56 volts now.
I unhooked the neg. cable.
Can anyone tell me how to test for paracitic draw with my multimeter?
Thanks Ross
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Old 05-29-2012, 07:55 PM   post #2 of 5
stladrill
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Default Re: draw on battery

You have to set your multimeter to ampere and connected in series with the positive side of the battery.

here a good link, it talk about cars but it's the same test. http://extreme-check-engine-light-co...rain-no-codes/

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Old 05-29-2012, 10:14 PM   post #3 of 5
theroosterb
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Default Re: draw on battery

Thanks for the link.
That should help me get it figured out.
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Old 05-29-2012, 10:25 PM   post #4 of 5
mbrun
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Default Re: draw on battery

If the battery only charged to 12.56v after a really good long charge then the battery is shot or nearly so. It should charge to 13.3+ and settle down to 12.9v after 24 hours. Do your tests and track down and repair the source of battery drain before you replace.
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Old 05-29-2012, 10:38 PM   post #5 of 5
larrybl
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Default Re: draw on battery

Here is how to use your volt meter to check your charge system (not JD) but the battery dosn't know

http://www.youtube.com/watch?v=UPtBB...1&feature=plcp
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