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Totally unscientific. I have a Kill-a-Watt which measures the current from from anything plugged into the device. It’s not a very accurate tool but it does give a good reasonable approximation. Pulled the battery and plugged it into the Kill-a-Watt.
At Boot up:
Peaked at 19 Watts but was normally in the 14-15 Watt range.Normal Battery Management setting:
With the screen at 1 bar of brightness it puling 11 Watts.Every two bars of screen brightnes would add 1 Watt.
3 Bars = 12 Watts
5 Bars = 13 Watts
7 Bars = 14 Watts
8 Bars = Hovered between 14 and 15 WattsWhen accessing the Hard Drive the Wattage would normally jump 1-2 Watts
Max Battery life mode when everything went idle and the screen dimmed it would draw 9 Watts
I’ll probably do some more scientific tests with it later. I just tried it out for about 5 minutes last night just to get an idea of how much power this thing really uses… which isn’t much at all 🙂
I guess that is quite interesting when considering whether it is really worth cutting back on using certain features, brightness or whatever. ie if we can see that the difference is very small then it might suggest that religiously keeping brightness down is just not worth the effort.
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