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Farmall & IHC Tractors Discussion Forum
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Battery Problem

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bowhunternw

05-14-2019 18:40:46




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So I converted my 300 u to 12 volt this winter. I have not given it a long test run until today. Put a cheap auto battery in and everything works fine except I noticed the batter was leaking acid out of the top caps. Do I need to get a sealed battery or one that can get bounced around. Or am I somehow throwing to much charge to it and is boiling over?




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Ken Hansen

05-16-2019 07:52:49




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
Would agree on the over charging idea.

I converted mine something like 30 years ago with a 3 wire Delco and never checked the battery until it failed to crank over a couple years ago.

Do most of my mowing in third gear on a not so smooth lawn and never had a problem with acid coming out of the battery. And it was I believe the cheapest 12 volt battery I could find that fit the battery box.

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bowhunternw

05-15-2019 10:10:57




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
I wont get back to tractor till tomorrow to check voltage. what would cause overcharging, internal voltage regulator? When I initially test ran it, the ammeter read slighlty above neutral. last night I did notice it was stuck way to right. I just figured it wasn't working.



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bowhunternw

05-15-2019 05:55:06




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
This was a kit that I bought. It is the small hitachi altenator, I believe that is the brand. Also came with the 12 volt coil. It used the inplace wiring, basically take the old wire feeding from the altenator and connecting it to the 2 wires from the voltage regulator. Then switching the posts on the ammeter. Then hooking up the new battery to be negative ground. It said that to check to see if charging, it should read between 13 and 14 volts when running. Which it did. Maybe I should recheck it to make sure that it is still in that range. The battery was brand new and did not check the acid level.

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BarnyardEngineering

05-15-2019 05:38:06




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
If you are bouncing around enough to throw battery acid up out of the caps, you are driving WAY TOO FAST. Those caps are pretty well sealed and will keep the acid in under normal conditions.
What does the ammeter say? If the needle is pegged, you are overcharging the battery and boiling the acid.

Check your wiring. Have someone else who knows what they're doing check your wiring. Sometimes we get the mentality, "I checked that already and it's fine," when re-checking our own work, and miss obvious problems, so a fresh set of eyes can be useful.

That said, cheap alternators have a high rate of failure. If you bought the cheapest $30 Delco 10SI from AutoZone/Oreilly's/Advance, there's a good chance it has already failed.

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thastinger

05-15-2019 05:10:23




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
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What is the battery voltage when you shut off the tractor? Battery hydrometers aren't expensive and you can test the specific gravity of each cell, anything over 1.265 is overcharged.

I assume you used a single wire alt?

Car battery should last a long time but I used an interstate marine battery in mine, been in there 8 years so far.

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rustred

05-14-2019 19:58:22




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
check the charging volts. and was the battery low? and how is the acid level? if too full and fast charging it will come out the caps. need more info . also is this an alternator or generator? lots of times those old regulators are responsible for over charging.



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old

05-14-2019 19:38:27




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
Fill in the blanks. How did you convert it. Alternator but which one Delco 1 wire or 3 wire or some other one. If a 3 wire do you have the #2 wire hooked up so he V turns off when it should



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pinball

05-14-2019 19:31:50




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
could be it was to full. check to make sure the level is down 1/4 inch. leave caps off start your tractor and watch the levels. if they come up quickly you probably are over charging it for some reason.



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504

05-14-2019 19:01:08




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 Re: Battery Problem in reply to bowhunternw, 05-14-2019 18:40:46  
Over charging,or a short, if the battery is dead tomorrow you will know if it is a short :)



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