Agreed. For about a week I tried out a 1 then a 2 before opting for the 3, and the battery lifespan is really good. I know its not a close comparison, but my brand new dell laptop at work gets like 2.5 hours of time, and even with pretty heavy daily usage streaming movies at 85% of the brightness level I'm getting between 9-11 hours of usage time - pretty amazing.
Speaking of the battery, do you people constantly "top-it-off" and frequently charge the battery, or do you just drain it down to like 10% and then fully charge all the way back up in a single cycle?
I just charge it whenever I feel like it. It doesn't matter as long as you calibrate once every month or 2.
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I am not an expert but I would say that the brightness controls might tie into the LCD. Maybe the same controller that handles the LCD also handles the brightness and the extra "load" of running a graphic intensive LCD and the highest setting of back light causes extra heat.I know that strain on the GPU creates a lot of heat. I'm referring to the guy's comment that said that increasing the brightness has a drastic effect on temperature, which I find odd, as LEDs don't exactly get that hot.