Galaxy Nexus Power Analysis: Why chargers can’t keep up with navigation:
In sleep mode it only drew 0.04W with occasional spikes of 1W.
- Powered on and idle it averaged 3W.
- Running a CPU benchmark it stayed at 4W.
- Downloading a large file over WiFi got a steady 4.2W.
Now the real test… Google Maps.
This varied a LOT. Minimum was 4W with some steady peaks of 5.1W!
Well, as you can see, this is how you can lose power even if your phone is plugged in. Also, here’s the usage of the various brightness settings and colors:
I ran several tests with the device in airplane mode and just showing a solid color on the screen on the dimmest, and brightest screen settings.
- Dim black: 1.8W
- Dim white: 2.0W
- Bright black: 1.9W
- Bright white: 2.9W
For extra fun…
- Bright Red: 2.5W
- Bright Green: 2.6W
- Bright Blue: 2.8W