| http://www.w3.org/ns/prov#value | - Powering the display right down to the minimum brightness, keeping it turned off and locked and jumping onto Airplane mode from time to time led to an astonishingly low battery consumption, with the unit lasting well over two days with 50% still remaining (on the Wi-Fi only version).Given that the device will mostly be in the bag or pocket (at a stretch) we can see you will only need to keep the cha
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