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#16 |
Banned
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#17 |
Resident Curmudgeon
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#18 | ||
Wizard
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Join Date: Oct 2010
Device: PocketBook 903 & 360+
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If you want to see how much they assume that a person reads/day you want to calculate 156 h /61 days= 2.55 h/day. |
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#19 | |
Wizard
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Device: PRS505, 600, 350, 650, Nexus 7, Note III, iPad 4 etc
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Of course batteries don't discharge at all when not actually reading
![]() Where JSWolf says 156 hours battery life, it doesn't say 156 hours of reading time, it says 156 hours battery life - not the same thing, your math is trying to work different things into one conclusion... ![]() Quote:
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#20 | |||
Wizard
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Device: PocketBook 903 & 360+
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What I was calculating was how B&N got from 156 hours (and yes, I see that they are in fact 150) to 2 months. Last year when I was looking for a reader, all the manufacturers said the number of page turns, and the advertisements were mentioning how you get to read for a month without charging the battery (if you don't use wifi, etc.) and the general opinion on the forum seemed to be that only the people who don't read much would get that. And JSWolf is right, if a person were to read continuously, the battery wouldn't last a week, but that would assume that such a person doesn't sleep or eat. But people in general sleep, eat, work, have a social life, and that puts a limit on the amount of time that they spend reading. |
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#21 |
Wizard
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Device: Kindle 4, iPad Mini/Retina
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I think what can be agreed on here is that measuring e-ink battery life by units of time is a problematic thing.
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#22 |
Addict
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I'm just curious how when they use a page per minute for 150 hours it would equal 9000 page turns battery life. Yet then they say they can get 25000 continuous page turns @ 1 per second.
I would have to assume @ 1 per second the full page isn't fully loading to get nearly 3 times the usage. |
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#23 | |
Wizard
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Device: PocketBook 903 & 360+
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How long do you go with your device before needing to recharge? |
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#24 | |
Grand Sorcerer
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I usually recharge once a week. And read between 3-4 hours a day on my K2. Last edited by DiapDealer; 05-27-2011 at 10:59 AM. |
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#25 |
Wizard
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The sequence of events was: 24th - new Nook anouncement, 25th - Amazon changed the battery life, 26th - B&N present their test results.
I'm not sure if anybody realized this, but since it takes at least a week to perform the battery test that B&N did, they were well prepared for the argument, as well as sure that their battery was more than twice as good as the kindle's. |
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#26 | |
Award-Winning Participant
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Yes.
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(example: They were well prepared to show that they could double kindle in their stated test. Let's assume that the test results are valid. What if in practice, their advantage is due entirely to the 5 of 6 partial refreshes, and the battery itself and other engineering matters are no better? What if their wifi, and computing features are less efficient and drain more power in actual use or leak more in standby?) Last edited by ApK; 05-27-2011 at 11:07 AM. |
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#27 |
Wizard
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The only time when I need a long battery life is for traveling. And if the battery is better, it just means that I can also use the wifi without worrying about having a dead battery on the return trip.
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#28 |
Wizard
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Yes, but before Amazon can test this, they will have to wait until the new Nook ships, and then run the test for a week. By that time it will be too late for them unless the results say that the battery lasts exactly the same (or lasts longer).
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#29 | |
Grand Sorcerer
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Device: Nexus 7, Kindle Fire HD
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#30 |
Wizard
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Device: PRS505, 600, 350, 650, Nexus 7, Note III, iPad 4 etc
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My latest eReaders actually last for several months when switched off and not used... kind of defeats the point of having an ereader though... in use, I never switch my eReader off just use standby which tends to get me 10+ days at 3-4 hours per day... and this is real time usage rather than experimental testing designed to show an eReader in the best light, rather like battery life on laptops - usually meaningless for actual usage times...
And you're dead right, never read original because I was dealing with JSWolf's comment and your detailed arithmetic reply... original was irrelevant to that, hence my exact comments... |
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