I would say the batteries are "not the best" to put it lightly.
At a little over 2 years I started having problems with mine.
Our cars are very "heavy" in the electronics dept. So the choice was to warranty it and hope for the best going forward or to fix-it-and-forget-it.
Boyfriend gave me an early "Christmas Gift" of a yellow top Optima spiral gel cell battery.
http://www.optimabatteries.com/optima_p ... /index.php
http://www.optimabatteries.com/_media/d ... cs/D35.pdf
Needless to say I'm not expecting any more problems in this area for some time to come.
P.S. If anyone decides to go with the Optima battery note that the plastic box-like shipping cover for the battery terminals doubles as a stand/platform for the battery. Raising it up and making it easier to bolt down. At least that is what my boyfriend stated when doing the install... just FYI.
