Battery Life of Sony PRS700 - Page 3

Andybaby · 04-24-2009, 09:35 PM

2. Up to 7,500 continuous page turns with a single full charge on internal rechargeable battery. Actual battery life may vary upon usage patterns, product settings, battery, and environmental conditions.

1000 page turns is still 2 days, even if you read every minute of those days, better battery life than any other electronic.

btw, every time you make a note, you flash the screen again, so for every note you make add about 3, unless you are typing, then add 20 per note, and see how your figure turns out. every time you turn the device on, every time you open a menu, etc etc. thats all part of it.

DLautzCinci · 05-01-2009, 03:57 PM

I read about 2 page-turns per minute, so my PRS-700 battery life is 500 minutes or 8.33 hours -- that's for me, anyway. Highlighting text every once in a while does take up battery.

But Sony's claim of 7500 page-turns implies 40-60 hours of battery life, far short of my actual experience.

I'm perfectly find with 8 hours of battery life; I don't mind charging it. It's typical for a handheld device. I could take the book reader on a really long flight and the battery would be fine.

Let me also say that I have always been a fan of Sony -- I have lots of their products.

What's unfortunate is that Sony ruined my satisfaction with the PRS-700 just because the product can't live up to their claims. It's almost as if the Sony engineer said "look, average battery life is 750," and some Sony marketing guy said "let's add a zero to that to make it sound better."

On one hand, Sony's lousy customer support really upset me. But I see that they are in a no-win situation because they can't explain there is really nothing wrong with the PRS-700. Replacing the product won't solve the customer's issue since the problem is the extra zero in the specs, not the battery.

Andybaby · 05-01-2009, 06:39 PM

battery life claims are always done by using the lowest power possible, I'm sure you can get 7500 page turns if you try. turn the page once a second, every second for just over 2 hours. and you get 7500 page turns

now that sounds true, 2 hours of page turning goodness. remember it says 7500 CONTINUOUS page turns.

extending it over the matter of hours or even days, of course the number will go down.

ddave · 05-04-2009, 04:55 PM

Does anyone have an estimate of the self discharge rate of the Sony battery (i.e. the leakage current)? In other words, if fully charged and not turned on. What would the charge level be after 1 week? 1 month?

ddave

lilac_jive · 05-04-2009, 06:31 PM

Quote:

Originally Posted by ddave

Does anyone have an estimate of the self discharge rate of the Sony battery (i.e. the leakage current)? In other words, if fully charged and not turned on. What would the charge level be after 1 week? 1 month?

ddave

We've had a couple people here who have left their unit alone for a month or so, and the battery is drained.

I'm still getting a good few thousand page turns from mine, depending on how much I turn it on or off. I get about 2 weeks before I charge it, and I don't let it drain all the way.

narbeauchamp · 05-04-2009, 07:29 PM

When you are not using the device-do you fully shut it down ? I have a memory card in my device,and routinely use the light (particularly for late night reading)-my battery lasts far more than a week (and more than 1000 pages per charge).In fact,I think it was only a few days ago where I was down to critically low battery power.When I do not plan on reading,out of habit,I do a "full shut down" of the device.....

Andybaby · 05-04-2009, 10:02 PM

I never have done a full shut down, which I assume is holding it off in the off position till it shuts down, instead of sleep which is just a flick of the off button.

2 books a week on a single charge, unless I'm reading alot at night with the light on

Pangolyn · 05-07-2009, 08:52 AM

I always turn it off (not sleep) if I know I'm not going to read within the hour. It makes a huge difference in battery life. I also use a PSP charger like others have stated. If you use the light then there is no hope of getting a lot of time out of the battery.

rebarnmom · 05-13-2009, 03:45 PM

Wow! I've never fully shut down either! I haven't really been keeping count of page turns, but I haven't considered my battery life to be less than sufficient and with the PSP charger it charges back up so fast!!

Andybaby · 05-13-2009, 04:40 PM

heck even a half hour USB charge is enough to read for days. I do that alot. I wake up and its at 1 bar, I plug it into the usb, its at 3 or 4 w/in a half hour when I have to leave.

04-24-2009, 09:35 PM	#31
Andybaby Wizard Posts: 1,279 Karma: 1002683 Join Date: Nov 2008 Location: New York Device: PRS-700	2. Up to 7,500 continuous page turns with a single full charge on internal rechargeable battery. Actual battery life may vary upon usage patterns, product settings, battery, and environmental conditions. 1000 page turns is still 2 days, even if you read every minute of those days, better battery life than any other electronic. btw, every time you make a note, you flash the screen again, so for every note you make add about 3, unless you are typing, then add 20 per note, and see how your figure turns out. every time you turn the device on, every time you open a menu, etc etc. thats all part of it. Last edited by Andybaby; 04-24-2009 at 09:38 PM.

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05-01-2009, 03:57 PM	#32
DLautzCinci Junior Member Posts: 2 Karma: 10 Join Date: Apr 2009 Location: Cincinnati, OH Device: Sony PRS700	I read about 2 page-turns per minute, so my PRS-700 battery life is 500 minutes or 8.33 hours -- that's for me, anyway. Highlighting text every once in a while does take up battery. But Sony's claim of 7500 page-turns implies 40-60 hours of battery life, far short of my actual experience. I'm perfectly find with 8 hours of battery life; I don't mind charging it. It's typical for a handheld device. I could take the book reader on a really long flight and the battery would be fine. Let me also say that I have always been a fan of Sony -- I have lots of their products. What's unfortunate is that Sony ruined my satisfaction with the PRS-700 just because the product can't live up to their claims. It's almost as if the Sony engineer said "look, average battery life is 750," and some Sony marketing guy said "let's add a zero to that to make it sound better." On one hand, Sony's lousy customer support really upset me. But I see that they are in a no-win situation because they can't explain there is really nothing wrong with the PRS-700. Replacing the product won't solve the customer's issue since the problem is the extra zero in the specs, not the battery.

05-01-2009, 06:39 PM	#33
Andybaby Wizard Posts: 1,279 Karma: 1002683 Join Date: Nov 2008 Location: New York Device: PRS-700	battery life claims are always done by using the lowest power possible, I'm sure you can get 7500 page turns if you try. turn the page once a second, every second for just over 2 hours. and you get 7500 page turns now that sounds true, 2 hours of page turning goodness. remember it says 7500 CONTINUOUS page turns. extending it over the matter of hours or even days, of course the number will go down.

05-04-2009, 04:55 PM	#34
ddave Enthusiast Posts: 35 Karma: 10 Join Date: Mar 2009 Location: Minnesota, USA Device: none	Does anyone have an estimate of the self discharge rate of the Sony battery (i.e. the leakage current)? In other words, if fully charged and not turned on. What would the charge level be after 1 week? 1 month? ddave

05-04-2009, 07:29 PM	#36
narbeauchamp Groupie Posts: 170 Karma: 98 Join Date: Jan 2009 Location: New York,NY Device: PRS700BC/PRS505/TZ350N/MacBook/Aspire One/iPad/iPhone/BB 9630	When you are not using the device-do you fully shut it down ? I have a memory card in my device,and routinely use the light (particularly for late night reading)-my battery lasts far more than a week (and more than 1000 pages per charge).In fact,I think it was only a few days ago where I was down to critically low battery power.When I do not plan on reading,out of habit,I do a "full shut down" of the device.....

05-04-2009, 10:02 PM	#37
Andybaby Wizard Posts: 1,279 Karma: 1002683 Join Date: Nov 2008 Location: New York Device: PRS-700	I never have done a full shut down, which I assume is holding it off in the off position till it shuts down, instead of sleep which is just a flick of the off button. 2 books a week on a single charge, unless I'm reading alot at night with the light on

05-07-2009, 08:52 AM	#38
Pangolyn Enthusiast Posts: 38 Karma: 10 Join Date: May 2009 Device: PRS700	I always turn it off (not sleep) if I know I'm not going to read within the hour. It makes a huge difference in battery life. I also use a PSP charger like others have stated. If you use the light then there is no hope of getting a lot of time out of the battery.

05-13-2009, 03:45 PM	#39
rebarnmom Wizard Posts: 1,289 Karma: 4525055 Join Date: Oct 2008 Location: rural Illinois, USA Device: Sony PRS-700 (traded in), Sony PRS-650	Wow! I've never fully shut down either! I haven't really been keeping count of page turns, but I haven't considered my battery life to be less than sufficient and with the PSP charger it charges back up so fast!!

05-13-2009, 04:40 PM	#40
Andybaby Wizard Posts: 1,279 Karma: 1002683 Join Date: Nov 2008 Location: New York Device: PRS-700	heck even a half hour USB charge is enough to read for days. I do that alot. I wake up and its at 1 bar, I plug it into the usb, its at 3 or 4 w/in a half hour when I have to leave.

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