My battery's about to die. I've been nursing it along with a charger at night - and making sure to pack jumper cables with me on all trips. Needless to say, it's going to need to be replaced soon.

I've got rough measurements of 7" X 7" X 10.25". I'm going to need a "high performance" battery - ideally one optimised for stereos. NOT OPTIMA!

http://scosche.com/efx.aspx?CategoryID=51

http://www.kinetikaudio.com/default.asp

http://www.svrbatteries.com/audio_line.html

What batteries have you found to fit in the battery tray? Have you had any fittment issues? Is there a "group size" that's recommended?

Thanks!
Matt