Daily, I am surprised with how long a battery can last. There are so many variables involved that when each cross the path of maximum lifespan at or near the same time, the result is non-belief. I routinely get 7-8 years out of lawn tractor batteries (wet cells) and since buying a pair of battery maintainers, expect this to extend (the time spans). Many cannot believe I get this long a service from lawn tractor batteries. When I tell them I only buy the cheapest (on sale) batteries, they scoff. I know wet cells last if you keep them clean and take care of them (I remove them after the last lawn mowing) and used to charge them once a month, but after the maintainers I bought I think I will leave the one in the tractor (it is already over 7 years old and currently starts a 22HP B&S motor easily). Over the winter, I'll keep it in the tractor. Now our cars are a lot more finicky. I replaced the OEM a couple years ago. I did that for two main reasons. The first was I was starting to experience a quirk or two. The main reason I decided to just replace it was I bought it after it went unsold for almost 2 years. That service is extremely hard on batteries because wet cells need to work, or they degrade (sulfate) in each cell. I chose to start new, and if the replacement was cared for and built properly, I expect it to serve for many many years.






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