You are probably right. But the formulation may not always cut sharply enough. There are too many factors that influence energy consumption.
With Google Navigation using tricks like screen dimming to reduce consumption, perhaps used with WiFi off and a phone connection that needs only minimal power, or no phone connection at all, some thrifty phone may just scrape by at 500 mA and even charge up a little bit.
That's why the original question may still be useful: Does it show "Charging (AC)" and not "Charging (USB)"?
With Google Navigation using tricks like screen dimming to reduce consumption, perhaps used with WiFi off and a phone connection that needs only minimal power, or no phone connection at all, some thrifty phone may just scrape by at 500 mA and even charge up a little bit.
That's why the original question may still be useful: Does it show "Charging (AC)" and not "Charging (USB)"?
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