Shorting out a fully charged cheap lithium jump starter. (It didn't end well.)
27:19
Inside a recalled Amazon Basics power bank.
27:33
Excellently awful eBay trash (with schematic)
30:00
Using salvaged lithium cells to power LEDs directly. (with protection test)
36:37
JUGEE battery teardown full size video.
26:58
Simplest solar light possible, using old phone battery.
26:09
Pruebo los Nuevos SUPER LÁSERES... ¡Estos revolucionarán la industria maker!
19:34
What's inside Eneloop and LIDL NiMh cells (fire, apparently)
22:01