Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester &#…
  • ayyy@sh.itjust.worksEnglish
    10·
    10 个月前

    The voltage-to-capacity radio for lithium is much less linear compared to alkaline so it wouldn’t really work well :(