Quote:
Originally Posted by jeromedevine
Does the Kindle Paperwhite consume much battery charge because of the screen frontlight always on when reading?
For example after a 1 hour reading session, how much battery charge is depleted? Say 20%?
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Don't think of the Paperwhite in terms of a backlit tablet. It uses alot less energy than that. If you were to remove all the color filters, both polarization filters and the lcd layer itself (the one that twists the direction of the light), you would have a nice floodlight with a tablet.
As to individual usage in % for one hour reading, that is impossible to say. It depends on your reading speed, the size of the font used, and also if you got wifi on or not. The wifi/3g radio uses energy all by itself even if no traffic occurs. The leds itself use the same amount of power no matter what is on the display (if left at the same level). The screen itself uses no power until a page is turned. While it is changing it uses a lot of power. That is why the more often you change a page on e-ink, the faster the battery drains. Thus impossible to say how many %. You should however expect around 13 hours of reading with light at 24 up to over 40 hours with light at low setting. That is based on others posting on battery time. But remember the way you read influences that.