[ http://www.batterystore.com/Odyssey/PC680MJT.htm ] I've had this battery for about a year now; it was replaced with a new one under warranty(the battery store sent me a new one without even asking for the old one to be returned). The original one lasted a year and then suddenly failed(a few cells died). This one has stayed much stronger so far, though. I tied it down with a 30" zip tie. I'm going with the Braille B3121 when this Odyssey dies, b/c it has almost double the cranking power and reserve time but only weighs about 5 more lbs. [ http://www.brailleauto.com/productcart/pc/viewCategories.asp?idCategory=17 ]