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Old 12-12-2008, 02:32 PM   #61
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While I agree that the ammount of books effects the boot time I am not sure why.

If you boot the device without the SD Card (Assuming that that is where your books are), then insert the SD Card after it has booted, it seems to scan the books much faster.
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Old 12-27-2008, 07:25 AM   #62
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Fu*k, so my measurements are flawed, because I do not remember how many books I had on my card.
Anyway, Ortep and Barcey already measured The Ultimate Answer, 42, so none other experiments are needed
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Old 12-27-2008, 06:04 PM   #63
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Fu*k, so my measurements are flawed, because I do not remember how many books I had on my card.
Anyway, Ortep and Barcey already measured The Ultimate Answer, 42, so none other experiments are needed
You should have know: The Answer to Life, the Universe, and Everything......



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Old 12-28-2008, 01:09 AM   #64
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Anyway, Ortep and Barcey already measured The Ultimate Answer, 42, so none other experiments are needed
Those mice did good work!
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Old 02-16-2010, 02:23 PM   #65
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50% after 148 hours and dead after 158 hours with 538. So with the Cybook in library mode the result is:
  • 538: 148-158 hours
  • 685: 44-45 hours
  • 708: 72-82 hours
I tested with the ePub firmware and got a new table:
  • 538: 148-158 hours
  • 685: 44-45 hours
  • 708: 72-82 hours
  • 2.0-1094: 70-89 hours


All these measurements with the Gen3 constantly on and not used for reading. The latest measurement had 36 hours (80%), 48 hours (80%), 70 hours (60%), 70-89 hours (dead).

So this bug is still not fixed.
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Old 02-16-2010, 04:50 PM   #66
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I noticed a difference in battery depletation depending on wheter I am within a book or in the library, when leaving it on over night a few days.
Could be coincidential, of course.
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Old 02-16-2010, 05:54 PM   #67
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I noticed a difference in battery depletation depending on wheter I am within a book or in the library, when leaving it on over night a few days.
Could be coincidential, of course.
All my measurements were done being in the library.
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Old 02-17-2010, 03:23 AM   #68
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A very nice work, tompe. Your results show that cosumption does not seem to have changed, at least with epub.

I am using 1.5, the prc version, and things do not seem to match up with previous version battery consumption.
Whatever I do (I do try to read, but I can't read for hours every day, I have to work too), it looks like I lose about 10% of the battery per day. With the previous version the battery lasted about 3-4 books, now I wouldn't bet on it.
It could be that the battery is deteriorating, after a year and a half, what with loading it while it is not really dead.

Having seen your results I do not understand what they did to lose more than half of the battery life, from the first version.
I do not know, it almost looks like that every time the device is booted it drains the battery a lot.

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All my measurements were done being in the library.
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Old 02-17-2010, 04:02 AM   #69
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I do not know, it almost looks like that every time the device is booted it drains the battery a lot.
I hadn't thought about it, but I'm going to try it, because I have the same problem.
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Old 02-17-2010, 04:06 AM   #70
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Ok, question : why does that "bug" don't affect my opus, running the exact same firmware ? It hold more that that. Didn't do precise test, but it holds always on about one week / one week and half. Long enough for me to forget about recharging...
That so-called bug sound more like hardware mess...

Last edited by EowynCarter; 02-17-2010 at 04:15 AM.
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Old 02-17-2010, 06:28 AM   #71
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Ok, question : why does that "bug" don't affect my opus, running the exact same firmware ? It hold more that that. Didn't do precise test, but it holds always on about one week / one week and half. Long enough for me to forget about recharging...
That so-called bug sound more like hardware mess...
Personally I do not trust people guesses. Let you opus be on all the time and see how long time it last.
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Old 02-17-2010, 06:29 AM   #72
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Having seen your results I do not understand what they did to lose more than half of the battery life, from the first version.
My guess is that the solution to the bug with missing a button being pressed caused the increased power consumption.
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Old 02-17-2010, 06:34 AM   #73
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Ok, question : why does that "bug" don't affect my opus, running the exact same firmware ? It hold more that that. Didn't do precise test, but it holds always on about one week / one week and half. Long enough for me to forget about recharging...
That so-called bug sound more like hardware mess...
HarryT did check it with the Opus on and not used and got 170 hours. Which is very near one week. So obviously something is different with the Opus.
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Old 02-17-2010, 06:38 AM   #74
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Personally I do not trust people guesses. Let you opus be on all the time and see how long time it last.
It last at least a week, always on, and reading a few pages... that's not a guess, it's a fact.
That's more than the 3 days and so you seams to have...
Recharging right now, becasue i once again let the battery die. (That is IMHO, the only problem i have with battery, it lasting too long and forgeting to recharge) We'll se how long it last

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Old 02-18-2010, 04:36 AM   #75
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. (That is IMHO, the only problem i have with battery, it lasting too long and forgeting to recharge) We'll se how long it last
That is exactely my problem.

Always on gives me a week. I realize dat 'booting' the device takes a lot of power. So a shutdown when not reading for 30 minutes is probably counter productive. But I do switch it off when I go to bed and when I'm at work. That gives me 2-3 weeks on a single charge. I'm not interested in a battery life of 4 to 5 weeks. That is not really different. Charging 20 times a year or 10 times a year does not change my life.

The only thing that would be better is charging once a year or even better: Never
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