Power-up self test of a USB power bank.
bigclivedotcom 0:48
7,948 views · 179 likes Watch on YouTube ↗
I covered this power bank on a recent video, but while messing around with it I disconnected the lithium cells then reconnected them. The unit went into standby mode and would not put out power or respond to a button press until it detected it was being charged, whereupon it sequentially tested all the LEDs including the flashlight one and then operated normally.
Category (YouTube): People & Blogs
Playback is via YouTube's official embedded player. Data from YouTube; Exumo is not affiliated with YouTube.