The first was to see how much power the Galaxy Nexus could draw from the USB connection. This turns out to be about 4.5W. (0.9A at 5V)


Now the real test… Google Maps. This varied a LOT. Minimum was 4W with some steady peaks of 5.1W!

And that, folks, is how you drain a cellphone battery while it is attached to a charger.

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