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Nice! Definitely somewhat of a niche use case, but I don't doubt that it exists. I do wonder though: Do AA batteries actually have a shelf life of 10 years eve

• jackvalentine 2y ago
  Yes - some quality batteries claim 25 years shelf life.
• Slartie 2y ago
  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.
  • throwaway2037 2y ago
    Do you know why alkaline batteries leak, but lithium do not?