The Lithium ones that they suggest to use do have a decade or more of shelf life, and they also don't leak! I've got an old pinball machine. Those use AA batte

The Lithium ones that they suggest to use do have a decade or more of shelf life, and they also don't leak! I've got an old pinball machine. Those use AA batteries to store highscores and settings in a battery-powered RAM chip. Typically the batteries must be replaced once a year or at least every two years, largely because of self-drain, and it's a common occurrence of them leaking, which can quickly destroy the 30 year old circuit board they're on. That's why most pinball collectors suggest to use Lithium AA batteries: you get 5-10 year lifetime, no danger of leakage.