Just put a new set in our 9180 last year went with new Interstates like I put in just about everything. Our local supplier is good about honoring the warranty but I have only had to use it once on an 8d in a versatile. Dad likes to put those JD hibernators in his combine and they are lucky if they last 2 years. Junk in my opinion. Used a couple of Napa batteries and have has marginal success with them. They honor the warranty but I get tired of changing them when I need to use the warranty. The other thing you can try is use a good battery maintainer on anything that has a draw to keep the batteries full so hopefully they don't freeze.