Battery Fumes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Woody · 05-14-2009, 05:55 AM

Your battery is venting because the acid/water in it is being boiled. This is from it either being over charged (most likely) or the Diodes in the alt. have failed and it is being charges with AC voltage ( this will kill the battery ) instead of DC voltage.

While your battery is venting as you described, you should be very careful around it!!! The gas vapor spewing out is extreamly flammable and a spark could blow up the battery!! Been there, Done that!

Don't trust the gauge in the dash, check it out with a meter.

05-14-2009, 05:55 AM	#5
Woody Registered User Join Date: Feb 2000 Location: Georgetown, KY, USA Posts: 631	Re: Battery Fumes Your battery is venting because the acid/water in it is being boiled. This is from it either being over charged (most likely) or the Diodes in the alt. have failed and it is being charges with AC voltage ( this will kill the battery ) instead of DC voltage. While your battery is venting as you described, you should be very careful around it!!! The gas vapor spewing out is extreamly flammable and a spark could blow up the battery!! Been there, Done that! Don't trust the gauge in the dash, check it out with a meter.



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