real time use of cyBook

bookie · 02-24-2009, 10:00 PM

hi all
I'm wondering what the actual real use time with one battery charge is for the CyBook. This is prompted by discussions of the BeBook, whose stipulated battery life of 7000 page flips turns out to be more like 1300, according to posts on the forum on the beBok website.
Can anyone confirm that for one battery charge 8000 page turns are available on the Cybook, assuming it's used as one would in the world ie probably turned off and on at least 40 times to read that number of pages?
Any experiences with battery life greatly welcome.
thanks for your help

Justy · 02-24-2009, 10:36 PM

I'm sure others will jump in with more technical/accurate information but here is my take. The 8000 page turns is actually 8000 screen refreshes, so every time you look at a menu or start up the Cybook or flip between pages of eBooks in your library you are using up some of your "page turns." I have never counted the number of refreshes I get, but I do know that I get at least a week of reading time out of a single charge.

I read at least 2 hrs a day every day, on the weekends or holidays this could go up to 4 or 5 hrs a day. I recently went on holiday for a week, I had a fully charged Cybook when I left, read 3 eBooks and part of a 4th, and still had some charge left when I got home. This meets my needs in an eBook reader.

basschick · 02-24-2009, 10:51 PM

how many page flips you get also depends on your firmware. i didn't upgrade mine since i was happy with everything, but i've heard other firmwares mean less frequent charges.

Barcey · 02-24-2009, 11:04 PM

The 8,000 page turns is one of those useless market numbers that all the vendors like to quote. It appears to be a number from e-ink for just the screen and controller and ignores the power required for the processor and memory for text rendering. Bookeen has been making firmware changes that impact the battery life.

If I never power off the device i was getting 4 full days but the battery died on me once on the 4th day so I started charging it every 3 days.

If I power the device off between reading sessions I got up to 13 days but sometime only 10 days. When I use it in this mode I charge it once a week so I don't forget.

I'm on a 3 day business trip and didn't bother taking my charger with me. If I go on a one week vacation I would take a charger but I use the same one that I use for my iPod so it's just one extra USB cable.

bookie · 02-24-2009, 11:16 PM

thanks for your speedy replies everyone. my question relates to being away from power for a couple of weeks. it seems more useful to know how many hours reading time would one get with one battery charge? I guess a second battery would help here..

Barcey · 02-24-2009, 11:26 PM

You can buy spare batteries and change them but the battery compartment has a very tiny screw head on it. It's not something that I would want to be changing in a campsite. It's possible but you'd need to right screwdriver and you'd have to be very careful.

I would personally look at an external solar charger or a charger that uses regular batteries.

HarryT · 02-25-2009, 03:42 AM

I can comfortably get a week's worth of reading from a battery charge on my CyBook (I turn it off after I finish reading), but probably not two weeks.

bookie · 02-25-2009, 03:50 AM

thanks Harry - roughly how many hours and page refreshes do you estimate that would be in a week?

Gaurnim · 02-25-2009, 03:53 AM

From what I remember, I think I could get something like 2-3'000 page reads between charges while reading a few hours each day.

HarryT · 02-25-2009, 04:01 AM

Quote:

Originally Posted by bookie

thanks Harry - roughly how many hours and page refreshes do you estimate that would be in a week?

Roughly 2h a day. Perhaps 500 page turns a day, let's say 3000-ish in a week.

Ned · 02-25-2009, 09:01 AM

Quote:

Originally Posted by HarryT

Roughly 2h a day. Perhaps 500 page turns a day, let's say 3000-ish in a week.

that's over four page turns a minute - do u really go as fast as that? must be hard on the thumb.

HarryT · 02-25-2009, 12:13 PM

I wouldn't call reading 4 pages a minutes particularly fast, so yes, I reckon that's probably about right.

snipenekkid · 02-25-2009, 04:07 PM

as I have come to understand the way eink screens work, a page turn is actually two actions. the first clears the current image on the screen and the second shows the new content. so, maybe the question is how do the makers define a page turn? maybe a lot of them are counting each action when providing the quoted number. so, 8000 page turns is really 4000 actual page viewings. this would seem more consistent with the numbers people seem to be reporting here and other places i fine while deciding what reader to buy.

HarryT · 02-26-2009, 11:25 AM

The maximum number of page turns is just pure "marketing hype". It's a figure quoted by PVI, the screen manufacturer. All it means is that if you fully charged up the reader, and then turned the page as fast as it would go until the battery was flat, that's roughly how many page turns you'd get. It means virtually nothing for "real world" usage of the device. Given that all 6" devices use the same screen from the same production line at PVI, there's nothing whatsoever to differentiate the screens used by the different manufacturers of 6" eBook readers.

emellaich · 03-02-2009, 01:49 AM

Another comment on over-stated page turns.

I tend to re-read books a fair amount. Sometimes I read them in detail the second time, but other times I quickly flip pages through the 'boring' parts and get to the good stuff. The way that e-ink works (page turns not reading time) I burn through the battery much quicker when skimming.

02-24-2009, 10:00 PM	#1
bookie Member Posts: 15 Karma: 48 Join Date: Oct 2007 Device: nokia	real time use of cyBook hi all I'm wondering what the actual real use time with one battery charge is for the CyBook. This is prompted by discussions of the BeBook, whose stipulated battery life of 7000 page flips turns out to be more like 1300, according to posts on the forum on the beBok website. Can anyone confirm that for one battery charge 8000 page turns are available on the Cybook, assuming it's used as one would in the world ie probably turned off and on at least 40 times to read that number of pages? Any experiences with battery life greatly welcome. thanks for your help

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02-24-2009, 10:36 PM	#2
Justy Fanatic Posts: 547 Karma: 27509 Join Date: Dec 2007 Location: Greater Vancouver Area, BC, Canada Device: Nexus 7, Sony Xperia z3 tablet, Kobo Glo, Boyue T63	I'm sure others will jump in with more technical/accurate information but here is my take. The 8000 page turns is actually 8000 screen refreshes, so every time you look at a menu or start up the Cybook or flip between pages of eBooks in your library you are using up some of your "page turns." I have never counted the number of refreshes I get, but I do know that I get at least a week of reading time out of a single charge. I read at least 2 hrs a day every day, on the weekends or holidays this could go up to 4 or 5 hrs a day. I recently went on holiday for a week, I had a fully charged Cybook when I left, read 3 eBooks and part of a 4th, and still had some charge left when I got home. This meets my needs in an eBook reader.

02-24-2009, 10:51 PM	#3
basschick Wizard Posts: 1,096 Karma: 4695691 Join Date: May 2008 Device: Kindle Paperwhite	how many page flips you get also depends on your firmware. i didn't upgrade mine since i was happy with everything, but i've heard other firmwares mean less frequent charges.

02-24-2009, 11:04 PM	#4
Barcey Wizard Posts: 1,531 Karma: 8059866 Join Date: Oct 2007 Location: Canada Device: Kobo H2O / Aura HD / Glo / iPad3	The 8,000 page turns is one of those useless market numbers that all the vendors like to quote. It appears to be a number from e-ink for just the screen and controller and ignores the power required for the processor and memory for text rendering. Bookeen has been making firmware changes that impact the battery life. If I never power off the device i was getting 4 full days but the battery died on me once on the 4th day so I started charging it every 3 days. If I power the device off between reading sessions I got up to 13 days but sometime only 10 days. When I use it in this mode I charge it once a week so I don't forget. I'm on a 3 day business trip and didn't bother taking my charger with me. If I go on a one week vacation I would take a charger but I use the same one that I use for my iPod so it's just one extra USB cable.

02-24-2009, 11:16 PM	#5
bookie Member Posts: 15 Karma: 48 Join Date: Oct 2007 Device: nokia	thanks for your speedy replies everyone. my question relates to being away from power for a couple of weeks. it seems more useful to know how many hours reading time would one get with one battery charge? I guess a second battery would help here..

02-24-2009, 11:26 PM	#6
Barcey Wizard Posts: 1,531 Karma: 8059866 Join Date: Oct 2007 Location: Canada Device: Kobo H2O / Aura HD / Glo / iPad3	You can buy spare batteries and change them but the battery compartment has a very tiny screw head on it. It's not something that I would want to be changing in a campsite. It's possible but you'd need to right screwdriver and you'd have to be very careful. I would personally look at an external solar charger or a charger that uses regular batteries.

02-25-2009, 03:42 AM	#7
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	I can comfortably get a week's worth of reading from a battery charge on my CyBook (I turn it off after I finish reading), but probably not two weeks.

02-25-2009, 03:50 AM	#8
bookie Member Posts: 15 Karma: 48 Join Date: Oct 2007 Device: nokia	thanks Harry - roughly how many hours and page refreshes do you estimate that would be in a week?

02-25-2009, 03:53 AM	#9
Gaurnim Final Five n°42 Posts: 789 Karma: 3599 Join Date: Feb 2008 Location: Lyon, France Device: Cybook Gen3	From what I remember, I think I could get something like 2-3'000 page reads between charges while reading a few hours each day.

02-25-2009, 12:13 PM	#12
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	I wouldn't call reading 4 pages a minutes particularly fast, so yes, I reckon that's probably about right.

02-25-2009, 04:07 PM	#13
snipenekkid Banned Posts: 760 Karma: 51034 Join Date: Feb 2009	as I have come to understand the way eink screens work, a page turn is actually two actions. the first clears the current image on the screen and the second shows the new content. so, maybe the question is how do the makers define a page turn? maybe a lot of them are counting each action when providing the quoted number. so, 8000 page turns is really 4000 actual page viewings. this would seem more consistent with the numbers people seem to be reporting here and other places i fine while deciding what reader to buy.

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02-26-2009, 11:25 AM	#14
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	The maximum number of page turns is just pure "marketing hype". It's a figure quoted by PVI, the screen manufacturer. All it means is that if you fully charged up the reader, and then turned the page as fast as it would go until the battery was flat, that's roughly how many page turns you'd get. It means virtually nothing for "real world" usage of the device. Given that all 6" devices use the same screen from the same production line at PVI, there's nothing whatsoever to differentiate the screens used by the different manufacturers of 6" eBook readers.

03-02-2009, 01:49 AM	#15
emellaich Wizard Posts: 1,101 Karma: 4388403 Join Date: Oct 2007 Device: Palm>Ebookman>IPaq>Axim>Cybook>Kndl2>IPAD>Kndl3SO>Voyager>Oasis	Another comment on over-stated page turns. I tend to re-read books a fair amount. Sometimes I read them in detail the second time, but other times I quickly flip pages through the 'boring' parts and get to the good stuff. The way that e-ink works (page turns not reading time) I burn through the battery much quicker when skimming.