View Single Post
Old 05-14-2015, 06:31 AM   #9
Hrafn
Fanatic
Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.Hrafn ought to be getting tired of karma fortunes by now.
 
Hrafn's Avatar
 
Posts: 520
Karma: 846170
Join Date: Feb 2011
Location: New Zealand
Device: Onyx Boox Poke 5, Samsung Galaxy Tab S5e 10.5
Quote:
Originally Posted by HarryT View Post
Because on a general-purpose tablet the CPU doesn't go to sleep - it carries on running applications. On such a device, using a lower-power CPU could indeed noticeably increase battery life. On a device like a Kindle, though, I doubt it would.
  1. The Wiki appears to indicate that 9.7" and 6" eReaders from the same generation with the same battery size have similar battery life (in spite of a 2.6:1 difference in screen area), indicating either that power usage is largely unaffected by screen area (unlikely) or that the screen is not the largest power user.
  2. The Android eReader users who were investigating battery lives were going out of their way to minimise CPU cycles, so "it carries on running applications" is unlikely to be a major effect.
  3. Even if only Android eReaders' battery lives are significantly affected by CPU efficiency, they are a significant, and growing, part of the eReader ecology, so the effect on them is worth looking at.
Does anybody actually have hard facts on which parts of the eReader use the most power?
Hrafn is offline   Reply With Quote