No, it's not. e-books have nothing to use battery when there are no pages being turned, so there is no reason it would run for a certain number of hours. It would run for a certain number of pages turned, that is unless they were using wifi, but they would not leave wifi on when testing the battery, so that is a non-issue.
CPU. Memory has to be powered, or you'd have SD read delay every time you paged. As you said, Wifi.
There are things that use battery when the screen's not being refreshed; it's just the screen that doesn't. Yeah, page turns might be a much better measure of battery life, but Fujitsu obviously prefers to create an average, so that their "Hours" might be easily comparable to other devices with which they compete. They probably did testing and figured, okay, the average person turns "x" pages per hour, and the device supports "y" pageturns, so that's z hours. This way, they can say "50 hours!" and have the marketing advantage of a much longer quoted battery life than non-e-ink readers.
PDAs and other readers don't have a life measured in page turns, so if they quoted battery life that way, people wouldn't know what devices had better life.
What's the battery life on the Sony e-ink reader, just out of curiosity?
Reader Comments (Page 1 of 1)
Kev50027 @ Apr 20th 2007 2:08PM
No, it's not. e-books have nothing to use battery when there are no pages being turned, so there is no reason it would run for a certain number of hours. It would run for a certain number of pages turned, that is unless they were using wifi, but they would not leave wifi on when testing the battery, so that is a non-issue.
suntiger @ Apr 20th 2007 2:28PM
CPU. Memory has to be powered, or you'd have SD read delay every time you paged. As you said, Wifi.
There are things that use battery when the screen's not being refreshed; it's just the screen that doesn't. Yeah, page turns might be a much better measure of battery life, but Fujitsu obviously prefers to create an average, so that their "Hours" might be easily comparable to other devices with which they compete. They probably did testing and figured, okay, the average person turns "x" pages per hour, and the device supports "y" pageturns, so that's z hours. This way, they can say "50 hours!" and have the marketing advantage of a much longer quoted battery life than non-e-ink readers.
PDAs and other readers don't have a life measured in page turns, so if they quoted battery life that way, people wouldn't know what devices had better life.
What's the battery life on the Sony e-ink reader, just out of curiosity?