This will dim the backlight (if present) and display a screensaver or ad. Kindle Sleep Mode – The Amazon Kindle can be put to sleep by leaving it inactive for 10 minutes or quickly pressing and releasing the power button.Though the location of the button is different across the various models, the functions are largely the same: The Kindle power button/switch has a few different functions. The Power Button on the Kindle Paperwhite After the image is configured, it’s more or less permanent until it is “erased” by more electrical charges (sort of like a Magna Doodle.) This is why an Amazon Kindle with Special Offers can display an ad on the screen when it is in sleep mode while consuming little to no battery life. When an electrical charge is applied to a microcapsule, certain pigmented chips rise to the surface, making them visible. E-Ink screens consist of millions of tiny microcapsules filled with pigmented chips. It only uses power to create the image on the screen. Unlike LCD screens, which go blank when de-energized, an E-Ink screen doesn’t need electricity to display an image continuously. How do they achieve this? Part of the secret is in how the E-Ink display works. The new Kindle Paperwhite is being advertised with eight-week battery life on standby. The Amazon Kindle (excluding the Kindle Fire) and other E-Ink readers are often touted for their epic battery life. But could you get more battery life by completely powering it down? Maybe. The Amazon Kindle has epic battery life, with the E Ink models lasting for weeks without recharging.
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