What causes your Battery to boil?
We were camping with some friends this weekend. He thought he had a sewer issue until he figured out it was his battery outgassing. The thing was boiling. What would cause this? We took the battery...
Forum Discussion
time2roll wrote:
If 12.7 is boiling the battery there is a shorted cell. The shorted cell makes it a 10 volt battery. 12.7 volts is too high for a 10 volt battery.
Doubt the test was accurate. Did the battery actually pull the rated CCA for 30 seconds and remain above 8.4 volts? Or was this some digital magic box?
I have no idea what type of test Autozone does.
I mostly posted this to let others know about the issue.
My first search about RV's and boiling battery on Google resulted in answers definitely pointing to the converter as the most likely culprit. As can be seen here that is not always the case.
After Autozone (being told the battery was good) we went to the local RV place (Camping World) and got the price and model number. Then went online and found the same item for $125 less. Since they were not buying from CW we grabbed a cheap multimeter from Wally world on the way back to the campground to check the voltages.
So Autozone told us we had a good battery, we didn't. And camping world would have been happy to sell us a greatly overpriced converter. No sale. And a $16 multimeter actually told us where the problem was.
That cheap multimeter is staying in the camper.
