Just went through a 2 day freeze here and my dura-crap

died, had it load tested and WOW 1.4 volts! Went to Cosco and got 2 red-tops for $91 each. Now planning a dual batt setup. Since they are gel-cell you don't have to worry about adding water/harmful gases/exploding. You can even turn the upside down and use for a post-to-post emergency jump. I've seen the mounted sidways under Jeep seats and they work great.