I don't expect any battery to last more than 7 years and I expect them to last only 5. I buy Interstate batteries from my local NAPA store to keep my money in the local economy. If I have a problem with the battery while under warranty it is easy to find another Interstate battery dealer to take care of it.
I bought Sears batteries at one time but their warranty is so short compared to the Interstate or any other brand that I stopped buying them. I check their warranty period and prices each time I shop for a battery and for the last 10 years theirs come up short. The customer complaints regarding their batteries has also increased greatly over the years. Sears seems to be exploiting the Die Hard brand and putting it on cheaper batteries.