Battery Life of Sony PRS700 - Page 2

amc · 12-13-2008, 03:32 PM

Quote:

...and using the A/C charger from a PSP or your old prs 500 you can read while charging.

Thanks Andybaby, I didn't know the chargers for the PSP and the reader were the same!

Re: the topic -- An hour battery life! There must be something wrong. I read for hours at a stretch with and without the light and I have not yet managed to run the battery out.

shighfield · 12-13-2008, 04:59 PM

Quote:

Originally Posted by amc

Thanks Andybaby, I didn't know the chargers for the PSP and the reader were the same!

Re: the topic -- An hour battery life! There must be something wrong. I read for hours at a stretch with and without the light and I have not yet managed to run the battery out.

I read today for 5 hours without the light and the battery gage hasn't moved, last night in the dark I read for about 2.5 hours with the light on and the gage went down one bar.

Keeping in mind I haven't charged the book yet other then when it was plugged into USB to load books on it. So I am on the factory charge.

HarryT · 12-14-2008, 04:30 AM

Quote:

Originally Posted by Palladin

Does doing the quick shutdown ( sleep mode ) versus a device shutdown reduce the battery life? Or better said, should I do a device shutdown to save battery life?

It saves battery life if you're not going to be using the machine for a few days. In "sleep mode" the CPU, etc, continue to use a small amount of power. If you do a "shutdown" everything is genuinely "off" and no power is used other than the slow natural discharge of the battery.

Palladin · 12-14-2008, 06:29 AM

Thanks Harry

Shighfield, I do not get anywhere near that kind of battery life.

I also have a 2gig disk almost full of audio books. I wonder if that might use some power especially in sleep mode?

HarryT · 12-14-2008, 06:34 AM

Yes, keeping a memory card in the machine will somewhat reduce the battery life. Whether the card is full or empty makes no difference.

shighfield · 12-14-2008, 09:48 AM

Palladin: I don't have a memory card in mine, but other then that read for another 2 hours last night with the light on and the battery gage is still only down one "Dot".

Maybe I have a mutant reader? I'll be watching the battery usage very close though as I hate running out of juice on a sleepless night.

dordale · 12-14-2008, 07:45 PM

Palladin--

Another possibility...I'm sure you know if you use your reader to listen to audiobooks/mp3 files, it will drain the battery fairly quickly. I've read about some people who have problems with their 505 and audio files. It seems that sometimes it can be easy to not actually turn the audio player off. If this is the case, then that's what could be draining the battery on your 700. I highly recommend buying a cheap mp3 player for listening to audio files and not trying to use your reader for that.

dordale

dhbailey · 12-15-2008, 08:26 AM

Also make sure the audio file is actually stopped before turning the reader off. This caught new users on the 500 by surprise -- it appeared to be off but in reality the mp3 file kept on playing. The mp3 playing software hasn't appeared to change, so if you listen to an audio book make certain the file is actually stopped before turning the player off.

I have a memory stick pro duo in my 700 and don't notice a significantly more rapid drop in power usage. I'm sure there is some, but not enough to account for only one hour on a full charge -- but having an audio file keep playing would certainly explain that.

hyperact · 12-16-2008, 05:45 PM

Quote:

Originally Posted by Andybaby

and using the A/C charger from a PSP or your old prs 500 you can read while charging.

I'm thinking of buying one of these chargers. Will a charger for any model PSP work?

dhbailey · 12-16-2008, 06:58 PM

Yes, all the PSP units use the same charger.

hyperact · 12-16-2008, 07:15 PM

Excellent, thanks so much. In that case, I'll just look for the cheapest one I can find.

Palladin · 12-17-2008, 10:16 PM

Thanks for all the comments. I keep an audio version of my ebooks on the 2gig memory card and I am going to remove it.

I just turned my ebook on after letting it sit for 4 days (it was only down one bar) and within an hour it said low battery (used the light and had the memory card inserted). I had done a compete device shutdown also. The battery life on my 505 seemed like it lasted weeks whereas my 700 appears to be hours. I am also going to get an AC charger.

Server · 12-17-2008, 10:41 PM

Naturally, with a live touch screen the 700 does draw more power by default.
Its design and schematics are also different so there is a hit there too. However,
I am not seeing what you are saying. After 4 days of non-use, and no shutdown,
there is only one bar missing. Of course this is a rough idea as there is no real
benchmark for battery testing on these devices. Even if you got 50% of what
sony claims for page turning, you should still get more than "hours" on your 700.

My guess, is that you MAY be using some kind of complex files that are
taking more to process / render or index. Or maybe your audio files are
in play mode without you knowing? Barring a bad battery, I'd say
something is up.

Andybaby · 12-19-2008, 04:49 AM

if you are using the light, expect hours.

i havent used the light in 4 days, and im still on 3/4th bars though i havent read as much as i would ussually do, only read 300 pages as opposed to 600. but still, its been on alot.

if you use the light, expect maybe 5 hours of continuous use. which is still alot of reading.

DLautzCinci · 04-24-2009, 05:40 PM

It looks like this is an old topic for some of you, but I thought I would add a few comments.

I bought the Sony PRS700 at the end of January 2009. I didn't think much about the battery life until it started being dead when I tried to turn it on. After that, I started keeping an eye on the battery bar.

Consistently, the meter goes down one notch after about 250 page-turns. Another bar at 500 pages, and so forth. My battery life is only about 1000 page-turns. I don't use the light, audio, or memory card. However, I do add notes to the books (the reason I bought 700 instead of 500).

I was charging with the USB cord, so I bought the Sony charger. Still the same battery life behavior. With my reading, the battery lasts about 1 week.

I would probably be okay with that if Sony didn't claim 7500 page-turns as being normal for a full charge. They set it up so that I now think something is wrong.

I tried to work with Sony support but it hasn't worked out well (I'm not even sure that my online chat was with a real human).

My PRS700 is under warranty, but Sony's idea of fixing the problem is exchanging my new book reader for an old refurbished unit that has already had problems in the past. That doesn't sound like a good solution to me.

I'm not sure there is really anything wrong with the battery -- Sony may have just set the bar too high in its marketing claims.

04-24-2009, 05:40 PM	#30
DLautzCinci Junior Member Posts: 2 Karma: 10 Join Date: Apr 2009 Location: Cincinnati, OH Device: Sony PRS700	PRS700 Battery Life It looks like this is an old topic for some of you, but I thought I would add a few comments. I bought the Sony PRS700 at the end of January 2009. I didn't think much about the battery life until it started being dead when I tried to turn it on. After that, I started keeping an eye on the battery bar. Consistently, the meter goes down one notch after about 250 page-turns. Another bar at 500 pages, and so forth. My battery life is only about 1000 page-turns. I don't use the light, audio, or memory card. However, I do add notes to the books (the reason I bought 700 instead of 500). I was charging with the USB cord, so I bought the Sony charger. Still the same battery life behavior. With my reading, the battery lasts about 1 week. I would probably be okay with that if Sony didn't claim 7500 page-turns as being normal for a full charge. They set it up so that I now think something is wrong. I tried to work with Sony support but it hasn't worked out well (I'm not even sure that my online chat was with a real human). My PRS700 is under warranty, but Sony's idea of fixing the problem is exchanging my new book reader for an old refurbished unit that has already had problems in the past. That doesn't sound like a good solution to me. I'm not sure there is really anything wrong with the battery -- Sony may have just set the bar too high in its marketing claims.

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12-14-2008, 06:29 AM	#19
Palladin Connoisseur Posts: 62 Karma: 10 Join Date: Dec 2008 Device: PRS-700, 350 & Pocketbook IQ	Thanks Harry Shighfield, I do not get anywhere near that kind of battery life. I also have a 2gig disk almost full of audio books. I wonder if that might use some power especially in sleep mode?

12-14-2008, 06:34 AM	#20
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	Yes, keeping a memory card in the machine will somewhat reduce the battery life. Whether the card is full or empty makes no difference.

12-14-2008, 09:48 AM	#21
shighfield Groupie!? GROUPIE!?!? Posts: 319 Karma: 649 Join Date: Aug 2008 Location: The Dirty Shwa Device: EBW 1150, Libra Color	Palladin: I don't have a memory card in mine, but other then that read for another 2 hours last night with the light on and the battery gage is still only down one "Dot". Maybe I have a mutant reader? I'll be watching the battery usage very close though as I hate running out of juice on a sleepless night.

12-14-2008, 07:45 PM	#22
dordale Wizard Posts: 1,731 Karma: 3472866 Join Date: Apr 2008 Device: Sony PRS-650 & 350; Kindle Voyage; Kobo Aura HD, Aura One, and Forma	Palladin-- Another possibility...I'm sure you know if you use your reader to listen to audiobooks/mp3 files, it will drain the battery fairly quickly. I've read about some people who have problems with their 505 and audio files. It seems that sometimes it can be easy to not actually turn the audio player off. If this is the case, then that's what could be draining the battery on your 700. I highly recommend buying a cheap mp3 player for listening to audio files and not trying to use your reader for that. dordale

12-15-2008, 08:26 AM	#23
dhbailey Guru Posts: 604 Karma: 733 Join Date: Mar 2007 Device: HP iPAQ211 / PRS 500, 700 and 505	Also make sure the audio file is actually stopped before turning the reader off. This caught new users on the 500 by surprise -- it appeared to be off but in reality the mp3 file kept on playing. The mp3 playing software hasn't appeared to change, so if you listen to an audio book make certain the file is actually stopped before turning the player off. I have a memory stick pro duo in my 700 and don't notice a significantly more rapid drop in power usage. I'm sure there is some, but not enough to account for only one hour on a full charge -- but having an audio file keep playing would certainly explain that.

12-16-2008, 06:58 PM	#25
dhbailey Guru Posts: 604 Karma: 733 Join Date: Mar 2007 Device: HP iPAQ211 / PRS 500, 700 and 505	Yes, all the PSP units use the same charger.

12-16-2008, 07:15 PM	#26
hyperact Member Posts: 23 Karma: 10 Join Date: Dec 2008 Device: Sony reader 700	Excellent, thanks so much. In that case, I'll just look for the cheapest one I can find.

12-17-2008, 10:16 PM	#27
Palladin Connoisseur Posts: 62 Karma: 10 Join Date: Dec 2008 Device: PRS-700, 350 & Pocketbook IQ	Thanks for all the comments. I keep an audio version of my ebooks on the 2gig memory card and I am going to remove it. I just turned my ebook on after letting it sit for 4 days (it was only down one bar) and within an hour it said low battery (used the light and had the memory card inserted). I had done a compete device shutdown also. The battery life on my 505 seemed like it lasted weeks whereas my 700 appears to be hours. I am also going to get an AC charger.

12-17-2008, 10:41 PM	#28
Server Anti-Narcissist Posts: 171 Karma: 307 Join Date: Nov 2008 Location: Somewhere Far, Nowhere Near... Device: SØNY6	Naturally, with a live touch screen the 700 does draw more power by default. Its design and schematics are also different so there is a hit there too. However, I am not seeing what you are saying. After 4 days of non-use, and no shutdown, there is only one bar missing. Of course this is a rough idea as there is no real benchmark for battery testing on these devices. Even if you got 50% of what sony claims for page turning, you should still get more than "hours" on your 700. My guess, is that you MAY be using some kind of complex files that are taking more to process / render or index. Or maybe your audio files are in play mode without you knowing? Barring a bad battery, I'd say something is up.

12-19-2008, 04:49 AM	#29
Andybaby Wizard Posts: 1,279 Karma: 1002683 Join Date: Nov 2008 Location: New York Device: PRS-700	if you are using the light, expect hours. i havent used the light in 4 days, and im still on 3/4th bars though i havent read as much as i would ussually do, only read 300 pages as opposed to 600. but still, its been on alot. if you use the light, expect maybe 5 hours of continuous use. which is still alot of reading.

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