When I first got my Daytona I had a crazy battery setup. Four, Bosch AGM's (one for each motor and 2 for the stereo!) They were like 60lbs each and I wanted them gone. I ended up going to the Odyssey PC925's (one for each motor and just one for the stereo). The PC925's had cold cranking of 330, even though they said the first few seconds were 900? I love Odyssey, as I have them in everything, but these little batteries just didn't have enough juice to spin my 2.5's over fast enough. I heard that you need at least 700cca for the 2.5s? Anyway, my 21 has enough weight on the back with the twin offshores, so I started looking and ended up going with these, Antigravity. I have group 24, which is like 12lbs and has 1500cca. They also have what they call, "restart", which is if your battery ever goes dead, you push a button and it jumpstarts for you.
They have a great website that answers a bunch of questions about lithium too. These are not your RC batteries that will start on fire. I got some cool battery connects too.
They have a great website that answers a bunch of questions about lithium too. These are not your RC batteries that will start on fire. I got some cool battery connects too.