this post was submitted on 10 Oct 2024
129 points (98.5% liked)
Videos
14302 readers
333 users here now
For sharing interesting videos from around the Web!
Rules
- Videos only
- Follow the global Mastodon.World rules and the Lemmy.World TOS while posting and commenting.
- Don't be a jerk
- No advertising
- No political videos, post those to !politicalvideos@lemmy.world instead.
- Avoid clickbait titles. (Tip: Use dearrow)
- Link directly to the video source and not for example an embedded video in an article or tracked sharing link.
- Duplicate posts may be removed
Note: bans may apply to both !videos@lemmy.world and !politicalvideos@lemmy.world
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I have a 3rd-party bit insert for my Leatherman that can check voltage on batteries, so I'm set for this problem (volty by pcpoodle)
Something on-battery would be cool, but with that Duracell PowerCheck implementation never seemed right to me, it seemed to show the battery having more and more power the harder and harder I pushed on the spots. ๐คท
You're either completing the circuit or not when you press on them.
Not necessarily. Buttons and switches introduce contact resistance, which in the case of the mushy Duracell buttons, is relatively high and also dependent on how hard they're pressed.
Ideally, the buttons are pressed very hard to ensure the entire contact area is closed, minimizing the contact resistance from the buttons. A good switch should have little resistance.
Poorly closing the contacts by not pressing the Duracell buttons very hard would result in higher contact resistance (because there's physically less contact between both halves of the switch), which means less current flows through the strip and less heat is generated. This would look identical to a deader battery with the buttons pressed well.