While cutting the grass I found this USB-C widget laying out by the curb. The nerve of some people to toss their e-waste on the side of the road!
hmm... I know nothing about these kind of widgets...
Inside there is a 600 mAh li-ion battery
Beyond the battery and maybe the USB-C connector, i'm not sure what else is worth keeping.
I haven't tested the battery yet, but I have just the USB widget for that task!
Only the best widget, that will forever out widget all widgets...
Its in a baldengineer certified explosion containment shoebox now, let's see how many coulombs come out...
Thanks for reminding me of bigclives videos, I had forgotten they had produced so many! Excellent resource as always!
The battery inside claims to have a capacity of 2.41 Wh
In a 16350 form factor
It doesn't appear there is any dedicated battery protection circuitry. The widget is solely relying on the charger IC and MCU to play nicely with the battery's SOC.
Ohh fancy! On this side of the pond I know them as KIS boxes
Battery still discharging, so far at 460 mAh and 1.755 Wh
Don't forget to cut-out eye-holes so you can look inside. 
So what did I end up with, well:
a) An interesting story
b) An interesting sensory experience from the smell
c) A genuine ~600 mAh li-ion cell
Perhaps I'll use the pcb as a usb-c power source board...
