[cwmcobra]

I have the Optima Yellow Top deep cycle battery in my kit that has not hit the streets yet. My testimonial is that I purchased the battery a year ago and the only charge it received was from running the engine for a grand total of about one hour before I disconnected everything to put the body on the chassis. I got side tracked and didn't start the engine again until last weekend now that I have the battery permanently mounted in the trunk. This is in Michigan where it sat in my garage in the sub-freezing temperatures for months. Hit the starter on my 520 big block and it cranked over like it had just come off a charge. Took a few cranks to get the engine to fire, but the high torque starter had plenty of juice to handle the job from the Optima.

I can't comment on durability, but its ability to sit for extended periods and hold a charge is admirable!

Chuck