Dangerous USB chargers 17 (QC 3.0 with schematic)
21:29
Dangerous USB chargers 18
19:32
Dangerous USB phone chargers 11 (fake vs. real)
23:26
Dangerous USB phone chargers 6 (Quick QC 3.0)
11:58
Now some safer USB chargers
10:47
IMPROVED Discrete BJT Curve Tracer: the Unexpected Role of Parasitics
16:09
Old battery is like new after 1 minute! Quick way to restore old battery!
32:57
Dangerous USB phone chargers
15:10