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 &#…
  • MystikIncarnateEnglish
    2·
    3 hours ago

    This I can get behind.

    I don’t need it on all my 18650s, but a few would be nice. Also 21700s.

    Someone bring this back.