Hello all, I just replaced our 4D battery with two 6V (also got a new starter). the old battery was interstate and still under warranty and they replaced it with a smaller battery, I'm ok with that as I thought it was gone for good. Now I have a smaller 110 amp hour deepcycle and the two 6V. Is there any way I can get use of both of these ? I think the new one will fit nicely in the engine room where the 4D would never fit. I googled it and it came back with a combiner but I'm not sure how this will all fit together. can they be placed in paralell with this combiner between them ? I still want to use the battery switches for house and engine as they seem to do the job... also what cables should be between these batteries if this is an option ? I think the distance will be 4 perhaps 5 feet thanks ! Gaute