13:01

Lithium "capacitor" in a disposable product

26:58

Simplest solar light possible, using old phone battery.

19:34

What's inside Eneloop and LIDL NiMh cells (fire, apparently)

13:59

This Is Why We Don’t Toss Out Broken Microwaves | Remake Projects

12:29

"Salt" Batteries are FINALLY Here?! Sooo should you use them?

19:41

Foamy soap pooping pigeon - with schematic

10:32

2057 How To Make The Homemade Battery You May Have Been Waiting For

21:31

Free lithium cells from discarded vapour devices. (And total teardown of one.)