Don't do this! (There's a much safer way)
26:58
Simplest solar light possible, using old phone battery.
20:46
Finally! A Battery That’s Better Than Energizer and Duracell!
28:21
Horrific USB power supply fault. (Electrocution risk.)
11:03
Inline remote USB switch - with undocumented modes (until now)
23:36
Shorting out a fully charged cheap lithium jump starter. (It didn't end well.)
30:00
Using salvaged lithium cells to power LEDs directly. (with protection test)
26:09
Je teste les Nouveaux SUPER LASERS... Ceux-ci vont révolutionner l'industrie du makers !
19:21