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What's causing my Battery to leak?


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#1 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 03:26 PM

Just went out and put gas in the 1050 and noticed the sides of the battery were wet. After taking a closer look There is wetness around the caps. The water level is good. I just checked the voltage in the battery and it was 12.5 volts.

What could be causing it to leak?

#2 NUTNDUN OFFLINE  

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Posted January 12, 2011 - 03:28 PM

It didn't happen to freeze and create hairline cracks in the side of the battery did it? I am guessing freezing is the culprit.

#3 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 03:30 PM

Let me go look... It is in a non heated Garage.....

#4 mjodrey OFFLINE  

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Posted January 12, 2011 - 03:32 PM

Could it be over charging and boiling out ?

#5 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 03:35 PM

Could it be over charging and boiling out ?


When I was testing that a few weeks ago it was giving me a reading between 13-14 when running....

#6 mjodrey OFFLINE  

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Posted January 12, 2011 - 03:37 PM

That is somewhere around normal.

#7 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 03:38 PM

From what I can tell there are no cracks on the sides of the battery. The source of the leak appears to be coming from both caps....

PS: the white powder you see is the baking soda I put on to see if it was acid and not just water from the snow melting.

Attached Thumbnails

  • battery 013.jpg
  • battery 012.jpg
  • battery 010.jpg
  • battery 011.jpg


#8 Texas Deere and Horse OFFLINE  

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Posted January 12, 2011 - 03:42 PM

its not condensation from when you used it last time is it?

#9 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 03:44 PM

its not condensation from when you used it last time is it?


When I sprinkled the soda on it, it bubbled..so its not condensation..

#10 Texas Deere and Horse OFFLINE  

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Posted January 12, 2011 - 03:55 PM

no, its acid, just over charging from time to time ,I'll bet

#11 olcowhand OFFLINE  

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Posted January 12, 2011 - 03:57 PM

I don't think over charging would raise the voltage any, but would just keep pumping the amperage into it. But if it's not wet after running a while, but just after sitting, I doubt it's the charge system causing it.

#12 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 04:01 PM

I don't think over charging would raise the voltage any, but would just keep pumping the amperage into it. But if it's not wet after running a while, but just after sitting, I doubt it's the charge system causing it.


Now that I think about it... During the summer I think I recall it being a little wet but thought nothing of it. It couldnt be overcharging because During the summer I ran it without the generator hooked up..

I forgot to mention the battery is nearing 11 years of age

#13 NUTNDUN OFFLINE  

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Posted January 12, 2011 - 04:11 PM

Could just be leaking at the caps because of different expansion effects and the caps not sealing like they should. You could take a little water out of the battery so it doesn't leak so easy.

#14 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 04:43 PM

Yeah thats probably the best thing to do

#15 DH1 OFFLINE  

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Posted January 12, 2011 - 04:53 PM

Might be the seal between the case and the top cover not so good, vibration from the engine on the tractor and capillary attraction causing the leak, 11 years for one of those battery's is pretty good.
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