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Old 02-13-2017, 09:31 PM   #312
davidfor
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Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by greens View Post
is it true that the battery last 25 hours for some and less than 15h for others?
The Kobo specs say the battery of the Aura ONE lasts form one month. That is at 30 minutes usage per day. Hence they spec it at about 15 hours battery life.

But, all that depends on how you use it. The above is probably with the WiFi and light off, and assumes an average reading rate. If you turned WiFi on and purely used the browser, the battery life would be a lot lower. The WiFi uses power and the browser refreshes the screen a lot.

If you are reading a book, it depends on how fast you read. The device renders a page, displays it on the screen and goes into a low power mode until you turn the page. So, most power usage is while turning a page. That means that if you are a slow reader, the battery will last longer. But if you are a fast reader, it will last less time. Both readers will probably get about the same number of page turns. If you also do things like make annotations or do dictionary lookups, there battery life will be shorted. Overall, the more you interact with the screen, the higher the more power used and hence the shorter the battery life.
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