View Full Version : prs 600/700 battery life affected by touchscreen?
fuhur 08-27-2009, 02:38 AM Hi!
I'm looking to buy a prs 600 and was wondering how the touch screen affects the life of the battery. Maybe some 700 owners can help with this.
Does the fact that the reader has to always wait for input continuously drain the battery? Is the battery life still measured in pageturns or does it die by itself if just left open, consuming battery on that touch screen? If so, can the touchscreen be turned off?
Donnageddon 08-27-2009, 02:45 AM A good question, whose answer I do not know. I find the side-light on the 700 does drain the battery relatively quickly compared to, say, the 505. That is the major battery drain for me, so I haven't noticed how fast the touchscreen effects it.
I would imagine not so much. The specs still quote battery life based on page turns (when the light is not used).
fuhur 08-27-2009, 03:26 AM Do you generally leave the ebook on when not reading? Or turn it off?
I always imagined putting the ebook on the coffee table in the living room set to some picture, sort of like a photograph holder when I'm not using it :)
Donnageddon 08-27-2009, 03:29 AM I generally turn it off.
Andybaby 08-27-2009, 04:32 AM Do you generally leave the ebook on when not reading? Or turn it off?
I always imagined putting the ebook on the coffee table in the living room set to some picture, sort of like a photograph holder when I'm not using it :)
it puts itself to sleep after an hour.
the only noticeable drain to the 700 is the Sidelights, Allowing you to read from 5-8 hours with the side lights on.(I've never measured it. and ussually I only read with the light an hour max)
the touch screen doesn't drain the battery.
Momo_Germany 08-27-2009, 06:46 AM Hi!
If I use the annotation-function of the PRS-700 it drains my battery real fast. (After about 2 hours reading and note-taking it's down). Same when I use the side-lights.
If I'm just reading without the side-lights on and without note-taking there doesn't seem to be a big difference concerning battery-draining compared to the PRS-505.
Greetings,
Momo
Wetdogeared 08-27-2009, 07:39 AM The touchscreen itself doesn't drain the battery much, if any, it's the functions that the touchscreen provide that may drain the battery quicker.
Using the annotations, search, zoom functions etc. will drain the battery much faster. If the books are not pre-paginated by the eBook library, I would assume that the initial pagination would have some drain on the battery also.
It is the built-in light that quickly drains the battery on my PRS-700, but that need not worry you.
Wetdogeared (WDE)
Treven 08-27-2009, 11:18 AM It does go to sleep after one hour - ASSUMING you have the "power management" selector set to ON. If not, then the unit doesn't shut off automatically. At least this is what I've read in the user's manual.
fuhur 08-27-2009, 11:40 AM So no one knows if the reader can stay alive when kept open(unused) for, say 2 weeks?
kampang 08-27-2009, 03:06 PM Probably we need to wait until an official review about the new prs-600 came out.
I am also interested in how long the battery life is ... and is it possible to completely turn it OFF ... so, not only sleep mode.
igorsk 08-27-2009, 04:29 PM You can turn it off completely by holding the power switch for three(?) seconds. Or use Shutdown option from Advanced Settings.
Andybaby 08-28-2009, 12:47 AM Hi!
If I use the annotation-function of the PRS-700 it drains my battery real fast. (After about 2 hours reading and note-taking it's down). Same when I use the side-lights.
If I'm just reading without the side-lights on and without note-taking there doesn't seem to be a big difference concerning battery-draining compared to the PRS-505.
Greetings,
Momo
this is due to the "7500" page turns thing.
every time the screen is changed/refreshed, you are using the processor and it counts as a page turn obvously. you can do over 50 a minute.
if you work out the math, if you turn the page once a second, you reach 7500 in about 2 hours.
kampang 08-28-2009, 04:06 AM Even if it is completely off ... The battery will run-out after 2 weeks, correct?
You can turn it off completely by holding the power switch for three(?) seconds. Or use Shutdown option from Advanced Settings.
Kostas 08-28-2009, 04:31 AM Even if it is completely off ... The battery will run-out after 2 weeks, correct?
Though never tried, I'm not sure. I have left my PRS 505 to "sleep" for over a week and my battery was about only one quarter depleted.
fuhur 08-28-2009, 05:37 AM The way e-ink works, there should be no battery drained when nothing is happening with the screen. Therefore, turning the ereader off shouldn't be any different from just letting it on on a specific page.
The only battery drainer should be the touch screen which keeps looking for input.
This is my main concern with buying a touch screen enabled ereader. Can anyone who has both types of readers make a comparison?
igorsk 08-28-2009, 07:07 AM Even if it is completely off ... The battery will run-out after 2 weeks, correct?
No, in that case there will be no consumption from the device and only the natural battery discharge. I would say it should hold for a couple of months.
HarryT 08-28-2009, 07:14 AM The way e-ink works, there should be no battery drained when nothing is happening with the screen.
No, that is incorrect. The SCREEN doesn't use any power when it's not doing anything, but the Reader is a computer, and like any other computer the CPU, memory, etc, all use power while the operating system is running.
HarryT 08-28-2009, 07:16 AM No, in that case there will be no consumption from the device and only the natural battery discharge. I would say it should hold for a couple of months.
That is correct. The mistake that people make is thinking that the so-called "power switch" turns the Reader off. It doesn't - it merely blanks the screen and disables most of the buttons. When the machine is genuinely switched off, using the "Shut Down" menu, then the battery will only experience its natural discharge rate.
fuhur 08-28-2009, 08:39 AM HarryT what you say makes a lot of sense, thank you!
So then is there a way to shut down/power off/unplug the ereader from the battery, but leave something on the screen?
kampang 08-28-2009, 09:15 AM Thanks for this information. Interesting.
Is there any "power-switch" or "shutdown" menu in this new PRS-600?
That is correct. The mistake that people make is thinking that the so-called "power switch" turns the Reader off. It doesn't - it merely blanks the screen and disables most of the buttons. When the machine is genuinely switched off, using the "Shut Down" menu, then the battery will only experience its natural discharge rate.
igorsk 08-28-2009, 09:15 AM So then is there a way to shut down/power off/unplug the ereader from the battery, but leave something on the screen?
Use the reset hole - it does exactly that (turns off the device without blanking the screen). Note that in this case you might lose your latest bookmarks and notes.
kampang 08-28-2009, 09:25 AM I think I found it.
PRS-600 User manual:
http://www.sonystyle.com/wcsstore/SonyStyleStorefrontAssetStore/pdf/warranty/SEL-asset-166216.pdf
Page 11
"...
To turn off the Reader
Slide the POWER switch again.
The Reader turns off. After turned off, the Reader enters
sleep mode.
When turning off the Reader, if you slide the POWER switch
and hold it for more than 3 seconds, the Reader shuts down.
..."
Page 12
"
To shut down the Reader manually
You can shut down the Reader manually in one of the
following ways.
Slide the Power switch and hold it for more than
3 seconds.
Use “Device Shutdown”
..."
fuhur 08-28-2009, 11:15 AM thanks kampang!
Funny manual, hehe: Do not poke people using the supplied stylus.
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