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5488 battery boiling


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Mowing hay today and while switching with dad I noticed a smell. After a series of events I discovered the right battery was smoking. Nothing seemed wrong with the left battery. Parked it outside and unhooked both batteries. Alternator was recently rebuild and actually had it rechecked out before the start of spring.  (Volt gauge maxes out and it didn't use too, hence the reason I had it checked) I wanted to make sure it wasn't over charging and was confirmed not to be.

So I know over charging is going to be the first thing everyone says.

Could one battery be bad causing this?

or would both batteries be effected if it was truly over charging? I didn't take the time to test with a volt meter. Was more worried about a tractor not burning and finishing mowing hay. 

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8 hours ago, snoshoe said:

Can be a bad battery. If bad will probably be dead in the morning. 

Something similar happened to me with my now ex 1980 1086. The left battery. I was running the tractor in the field and smelled burning. Talk about scaring the crap out of you. 

I stopped and shut ‘er down and jumped out. I quickly traced it to the left battery. I carried fire extinguishers in my tractors so I started blasting away at it the best I could through what narrow opening there was. Lol. 

I got the battery cover off and got the battery out of there. Had a good chance to practice my drunken sailor vocabulary  in the process. Ha ha. 

Well those batteries were both several years old so while I was at it I went and removed the right battery just to be safe and went and got two new ones. It was a week day during business hours so our local CASE IH dealer was open. Went there to purchase. 

Buttoned everything back up and away I went no further problems. So yeah in my case it was the battery decided to short out I guess. Scary deal. 

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15 hours ago, Rick G. said:

Something similar happened to me with my now ex 1980 1086. The left battery. I was running the tractor in the field and smelled burning. Talk about scaring the crap out of you. 

I stopped and shut ‘er down and jumped out. I quickly traced it to the left battery. I carried fire extinguishers in my tractors so I started blasting away at it the best I could through what narrow opening there was. Lol. 

I got the battery cover off and got the battery out of there. Had a good chance to practice my drunken sailor vocabulary  in the process. Ha ha. 

Well those batteries were both several years old so while I was at it I went and removed the right battery just to be safe and went and got two new ones. It was a week day during business hours so our local CASE IH dealer was open. Went there to purchase. 

Buttoned everything back up and away I went no further problems. So yeah in my case it was the battery decided to short out I guess. Scary deal. 

I'm wondering if it is just the battery as well. Left one seemed just fine and not the slightest bit hot. I'll check the alternator to make sure. Batteries are Interstates stamp for March of 2019 which is a little disappointing. 

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