coach batteries completely dry

[wa8yxm]

Regular (non Optima) Group 31's are closer to 125 amp hours. Just so you know.

Check the link,,, (I found it with Google)
Deep Cycle Battery FAQ

As you can see 75 amp hours is a touch anemic, in fact it's closer to a Regular Group 24.. That's a lot to give up when you consider the premium price they charge for those wallet flatteners.

[pacevette]

After reading all of this I am almost scared to put an optima in the coach...lol. Even though I can get them fairly cheap, I might as well do it right the first time. Or would any of you buy them and hope for the best? I was quite surprised at the size difference from my coach batteries to the optima. Seemed like almost half of the size.