03 if its at all possible try and go with some sort of marine type deep cycle......i know you be able to use a big one but you,ll get plenty of time out of it.....mine on the boat runs the trolling motor, bilge pump lights and radio and underwater camera all weekend without needing a charge......i think if you go with a little scooter battery you arn,t gonna be happy but i understand your space limitations...............some sort of deep cycle if at all possible.............................
