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Old 02-27-2012, 03:56 PM   #1
RDaneel54
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Kindle Keyboard 3g reading experiment

Just for fun, I wanted to see how many pages I could read on my Kindle before the power got real low. Since I'm nervous about getting too low on power, I read until it got to 1/4th.

Here's how it went:

Approximate use of WiFi during the experiment - 10 minutes
Approximate use of 3G during the experiment - 10 minutes
Kindle was in lighted cover, light use - none
Number of days Kindle used - Eight
Number of pages read (not Kindle page turns) - 1,610
Dictionary and menu randomly checked throughout the experiment.

The average number of Kindle page turns per book page was about seven, so I think that means I got 11,270 Kindle page turns.

Last edited by RDaneel54; 03-01-2012 at 02:06 AM.
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Old 03-01-2012, 12:18 AM   #2
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?????
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Old 03-01-2012, 02:10 AM   #3
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I read somewhere that the Kindle 3 was rated for 6,000 page turns on a charge. Obviously it does much better.

I'm not sure what ??? Means, but maybe I answered your question. Just for info for folks.
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Old 03-01-2012, 06:17 AM   #4
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And you still had 25% power left. Not bad. I have travelled to Japan and back with three weeks stay, read profusely on the plane and probably about two hours a day while in Japan without haveing to charge it. Just to be safe i had a small travel charger if the need should arise, but i made it on one charge.
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Old 03-02-2012, 10:02 AM   #5
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Quote:
Originally Posted by RDaneel54 View Post
I read somewhere that the Kindle 3 was rated for 6,000 page turns on a charge. Obviously it does much better...
No.

Battery drain is quite different between backlite LCD and eInk displays. The former draw the same amount of power all the time that they are on. eInk display only use power when redrawing the screen; they use no power while you are reading a particular page.

If you change screens fast enough so that you reach the "6000 screen" limit in, say, 4 hours you'll drain an eInk Kindle but only 1/2 drain a Fire.
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Old 03-02-2012, 01:35 PM   #6
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Quote:
Originally Posted by dwig View Post
No.

Battery drain is quite different between backlite LCD and eInk displays. The former draw the same amount of power all the time that they are on. eInk display only use power when redrawing the screen; they use no power while you are reading a particular page.

If you change screens fast enough so that you reach the "6000 screen" limit in, say, 4 hours you'll drain an eInk Kindle but only 1/2 drain a Fire.
If you look at my OP you'll see I calculated my screen changes/pages at over 11,000 on one charge, hence my statement that the Kindle 3 did better than advertised.

I wasn't comparing to an LCD as I'm aware of eInk screens only using power when redrawing.
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Old 03-06-2012, 05:07 PM   #7
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So, the smaller the font size the better the battery life? And read slowly. New glasses, then!
What about audio books? Better on the speaker or on earphones?
Could be interesting doing a mixed use trial.
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Old 03-06-2012, 06:02 PM   #8
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So, the smaller the font size the better the battery life?
Smaller fonts would increase the battery life, because there would be more words per page and fewer page turns to read the book.
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Old 03-07-2012, 12:00 PM   #9
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Quote:
Smaller fonts would increase the battery life, because there would be more words per page and fewer page turns to read the book.
Well yes, I had worked that out. Of course I might need new glasses
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