SurfRaptor
FRF Addict
Back when you could purchase a Diehard Platinum battery, they were among the best. Now that they’ve gone the way of the dinosaur the top of the line Interstate MTZ AGM is one of the best. I have one coming Thursday for my Viper, difficult to find the MTZ, however your local Valvoline oil change shop can order for you and have it in a few days. My MTZ-34 was $280, is much smaller than the Raptor battery but puts out 800 CCA and typically lasts way longer than their 4 year warranty. The Diehard Platinum it’s replacing lasted 10 year and lived on a battery tender. Good luck....
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That's how I ended up with the X2, I always had the Die Hard AGM but now they are gone. That Interstate battery was my go to also until I found the X2 with 880 CCA, weighs 50 lbs and had the year extra on the warranty. They also have a rebate for it usually in January and you can get it for about $280 out the door. The interstate is a great choice also and I've heard great things about it lasting a long time.