Who makes AC Delco batteries? Those were by far the best I have had to date. I ran one for 4 years in my pvc boat TROLLING most every trip (mmmmmm....crappie!!) and even then it didn't "die", I just noticed that it was getting tired quicker. That being said, I run everstarts now and I have been happy with them. Wisconsin all day, Champlain in the wind all day no probelms and with my Guest three bank, re-charge them in 3 1/2 to 4 hours easy. The ones I have in there now are into their 2nd year. So far so good.
Interstate crapped out in 1 year...never again. But my cranking battery is the small interstate that is original (2000).
TOXIC