I have to make a decision on new batteries for my new boat. I have used both kinds in the past and currently have Interstates I bought during the 2006 OI in Mountain Home. I have used Delco maintenance free batteries. I cant say one held up better than the other, but I like not having to stand on my head to put water in batteries or check to see if they need water. I am not interested in $250 high tech batteries. My boat will have a CMR 3 bank charger and I am not sure if it will charge maintenance Free batteries correctly either. The other school of thought is to buy a battery that you can get replaced under warranty where ever you go, like Wal-Mart or Sears. I would like to know what is popular with most Bass Catters now in the way of batteries and chargers? Skipjack