= Hardware
== Power plug systems

https://www.iec.ch/world-plugs

== Lenovo Yogabook sane settings

Control Panel > Appearance and Personalization > Halo Keyboard
disable "touch note" and "vibrate on keypress"

== Connectors

"The Electronic Connector Book" http://connectorbook.com/

== USB

"USB Cheatsheet" https://fabiensanglard.net/usbcheat/index.html

== Batteries

• https://www.batteryuniversity.com/articles