I'm trying to clear out the trunk of my car of electrical clutter and to do that I'll probably need a new and smaller battery and move to below the floorboards somewhere. I haven't been underneath recently to measure things up, but know that space is at a premium. This brings me to my question - what is the experience with the Odyssey Batteries, especially the 680 line or the 545 size. I have an Optima as the current battery and it is getting near the end of its life, just based on the length of time I've owned, so this is an "opportune time" for this mod. And that Optima has served me well, it's just too dang big.

The Odyssey's look to be a pretty good battery/size as long as I'm not using it in really cold weather, then it would probably be a "dog".

Any thoughts on these batteries??