I have 3 12v house batteries and before we left for our trip I noticed that the front battery was making a frying noise. I checked the water and it was dry and I added water. The next day it was dry again. The water in the other batteries were ok. I replaced the bad one and pulled out the next day. Today I checked the batteries and the new battery and the battery in the back were almost dry but the battery in the middle was low but had enough water. Why would the new battery boil out when a older...