G'day nothot,
should we really be helping you, i normally only stop for hot girls on the side of the road, LOL :rofl:
I think you could use many different types of battery in your doo, but i would recommend an Absorbed Glass Mat (AGM) battery. There are different brands such as, Optima, Odyssey, etc, etc.
I use an absorbed power, but thats because i can get them cheap and they have proved very reliable.
Here is a link to explain AGM batteries. http://www.windsun.com/Batteries/Battery_FAQ.htm#AGM,%20or%20Absorbed%20Glass%20Mat%20Batteries