I found a local starter shop that also sells batterys.<br/>There dealer buys seconds he had 4 4d agm dekas<br/> I decided to try 4 of them to replace my 3 8d mk's<br/>That are only lasting 30 min. Then genset starts.3 right<br/>Now run for 4 hours and I turned power back on.<br/>Will install 4 next weekend. I have to make a new top<br/>Bracket to hold the 4th one. Will keep you informed <br/>So far I...