Hi   A word of advise offered, and a bit of info wanted please.   Today while mowing with my C-120, it suddenly gave a rather loud pop, not quite like a shotgun, but close to it. I saw parts flying off the tractor. I stopped, listened, and could not hear anything wrong with the engine.  Looked closer and i saw the top af the battery was blown right off. Newer seen that before! So I stopped the engine and rinsed the tractor down with water. Luckily I dit not get sprayed. So I