Power Consumption for Pi Boards
If you're powering a Raspberry Pi board from a battery, you'll really want to know which board uses how much power.
Here is the official data from the Raspberry Pi Foundation: https://www.raspberrypi.org/documentation/computers/raspberry-pi.html#power-supply
Here's a great link with more information: https://raspi.tv/2019/how-much-power-does-the-pi4b-use-power-measurements
Refreshed 2021-08-25