Forum Discussion

Geocritter's avatar
Geocritter
Explorer
Sep 26, 2014

Exploding coach battery!

I need some battery help. I opened up the coach battery compartment to check and see if any of the batteries needed water and found this mess.





Apparently, the rear battery exploded, I don’t know when it happened so I suppose it might’ve happened when I was out and about.

I've been parked for the past two months hooked up to shore power.

Does anyone have any idea what may have caused this?

Steve
  • Because it was just the one, I would say a shorted cell. If that was it, you lucked out that it must have opened when it blew otherwise it would have put a dead short on the converter and taken that out as well.
  • The battery was over charged and the outgassing of Hydrogen caused the battery to explode. Happens when the battery is being charged in a compartment without enough air circulation.