[weland]

When studying power consumption for this type of devices, it's extremely common to measure the current being drawn, rather than to put out values in watts.

For one thing, it's the current that you usually measure in these cases anyway. For the other, power consumption in watts is not what you generally want to know when you design a battery-powered circuit. And, last but not least, it's more useful to have a figure in (m)A than (m)W when batteries are rated in mAh.

It's not correct terminology, mind you, but then neither is that of energy in your energy bill, so I guess this can be forgiven.

[chatman]

But the mA units were used in a table whose column heading said "Power saved". No matter what is "extremely common to measure", but it cannot be put in a wrong heading.