PRS-T1 Help! My battery drained overnight. Why?

Manisphere · 09-28-2012, 10:09 AM

So I was reading yesterday and everything was fine. Woke up this morning and the machine was shut down.

Can someone give me an idea how this would happen and what to do about it?

Many thanks

Ravensknight · 09-28-2012, 08:19 PM

Have you opened the music player? I did that the first time on my new T1, and couldn't figure out how to close it and it killed the battery. Had to do a reset and then I was good...

portlester · 09-28-2012, 11:24 PM

I've had the same thing happen on my T1 twice over the last month. Your's may be a different issue and I still haven't confirmed this, but my suspicion is that the wireless did not turn off automatically for me, even though I had put the reader into sleep mode and this drained the battery overnight.

On the last occasion (& I can't remember the first time), just before putting the reader down for the night, I was trying to connect to the internet but gave up after the reader took too long to connect. So while it was trying to connect I cancelled the connection and continued reading. Woke up next morning and the reader's battery was flat.

Having a later play with this I noted that even when I cancel the reader trying to establish a wireless connection, it continues to try to. What I haven't checked yet is whether or not it then shuts the wireless down automatically (which it normally does do when I am connected and go back to reading).

Has anyone else noted this?

filmo · 09-29-2012, 02:57 AM

If you have many books in library lets say 1500+, must not display covers in collections or book list so it does not drain battery and waste time trying to show covers. On each page showing covers or list of books in collections or BOOKS the 4 Icons at top right corner, the left icon displays covers, 2nd icon to right list of books without covers. Touch 3rd icon to right for changing how books are sorted.

Manisphere · 09-29-2012, 08:07 AM

As far as I can guess, it was a badly formatted epub. Is that a thing? Cause I've never had this issue in the 9 months I've owned the reader. I put a new epub in the reader the day before the drain, adjusted the font (something I rarely ever do) and then put the book down. By morning the power was dead. First thing I did when I got it reset was remove said epub. Then I plugged it into the charger. It was fine all day yesterday and this morning I woke up with my reader at 100%. Knock on wood, apparently problem solved.

So are there such thing as badly formatted epubs that can keep the reader thinking all night? I'd come across the concept while trouble shooting my issue. It fits my problem so far cause I never play around with the settings and I never use Wi Fi.

bla · 10-01-2012, 08:50 AM

Yeah.... you need to turn the wi-fi OFF not on standby and as already mentioned make sure your mp3 player is shut down and yes it is possible that the reader was continually trying to load/display a corrupt e-pub doing a soft-reset (paperclip) or powering off would ensure that all is shut down.. looks like you solved it whatever it was lol

MickiTee · 10-05-2012, 04:37 AM

Glad its not just me this is happening to. The battery drained for the second time last night. I thought it might be that I hadn't fully charged the battery after the first occurance about a week ago, but this might not be case now that I've read this thread.

I've performed a full Device Shutdown, checked that the Wi-Fi is off (its usual condition) and am recharging the battery as I type. Will wait to see what happens over the next week or so.

bla · 10-05-2012, 03:35 PM

Yeah let us know what happens

AnotherCat · 10-05-2012, 05:04 PM

Mine did the same about 3 times over the first 8 or so months I had it, with the battery completely discharging when left for more than a few hours in "sleep" mode. I don't use the WiFi on the reader, and that is always switched off, nor do I use the audio - the only functions ever used are just reading ones, mostly epubs.

If I am not going to next use the reader within an hour or so, I now always turn it completely off - by doing so I have not had the problem repeat itself (so far anyway

).

So seems to be some software matter either in the firmware or initiated in some way (I could not guess what way) by the book that was open when the reader was switched to "sleep" mode. It didn't happen enough times for me to draw any conclusions, but if the latter was the case then I wouldn't be surprised if it had been more frequent with pdfs.

In any event, it is something to be avoided as deep discharges shorten the life of most batteries, including Li-ion/polymer ones.

MickiTee · 10-25-2012, 05:56 AM

Wll two weeks down the road and I haven't had another drained battery overnight. Stayed well away from the Wi-Fi. I've recharged the battery, added & removed books and notes without a problem. Hopefully this was a one off and I won't have any more problems.

altruizine · 10-28-2012, 07:54 PM

I've observed this a few times as well. Following a suggestion from another thread, I noticed that often the Reader does not enter deep sleep mode (standby) correctly when it was booted with a connected charger (for example when booting after a shutdown caused by a fully depleted battery). In this case, the battery depletes within a few hours. You can check whether this is the problem in your case by pressing one of the page-turn buttons when the reader appears to be in standby mode; if the reader wakes up from this button press, it did not enter standby correctly.

The cure is to switch the reader off after removing the charger and to reboot it without any USB cable attached.

Manisphere · 11-20-2012, 03:55 PM

Aww, Dang! It happened again. The only thing I can link it to is that I took out a library book yesterday.

Dang.

WarGhSt · 11-25-2012, 08:12 AM

Quote:

Originally Posted by Manisphere

So I was reading yesterday and everything was fine. Woke up this morning and the machine was shut down.

Can someone give me an idea how this would happen and what to do about it?

Many thanks

Had this happen a couple of times. Turned out the case I bought was touching the screen when I had the device in standby, (showing the cover of last read book) triggering the IR sensors I guess? Unfortunately I like the case so I just decided to start shutting the PRS-T1 off every night.

Manisphere · 11-26-2012, 10:10 AM

And it happened again. Did a hard reset and reloaded my books. Hoping that will work. Honestly, between the occasional freezing/spinning ball issue and the spontaneous drains, I just miss regular books.

Out of curiosity, does hard resetting an ereader ever clear the device of bugs or any odd behavior?

MickiTee · 11-28-2012, 07:06 AM

Quote:

Originally Posted by WarGhSt

Had this happen a couple of times. Turned out the case I bought was touching the screen when I had the device in standby, (showing the cover of last read book) triggering the IR sensors I guess? Unfortunately I like the case so I just decided to start shutting the PRS-T1 off every night.

Try adjusting the settings so that you have a blank screen in standby and see what happens. Turning the device on every day is going to lead to more recharging of the battery and therefore reduced battery life.

09-28-2012, 10:09 AM	#1
Manisphere Member Posts: 18 Karma: 10 Join Date: Jan 2012 Device: Sony PRS-T1	Help! My battery drained overnight. Why? So I was reading yesterday and everything was fine. Woke up this morning and the machine was shut down. Can someone give me an idea how this would happen and what to do about it? Many thanks

10-05-2012, 05:04 PM	#9
AnotherCat .... Posts: 1,547 Karma: 18068960 Join Date: May 2012 Device: ....	Mine did the same about 3 times over the first 8 or so months I had it, with the battery completely discharging when left for more than a few hours in "sleep" mode. I don't use the WiFi on the reader, and that is always switched off, nor do I use the audio - the only functions ever used are just reading ones, mostly epubs. If I am not going to next use the reader within an hour or so, I now always turn it completely off - by doing so I have not had the problem repeat itself (so far anyway ). So seems to be some software matter either in the firmware or initiated in some way (I could not guess what way) by the book that was open when the reader was switched to "sleep" mode. It didn't happen enough times for me to draw any conclusions, but if the latter was the case then I wouldn't be surprised if it had been more frequent with pdfs. In any event, it is something to be avoided as deep discharges shorten the life of most batteries, including Li-ion/polymer ones. Last edited by AnotherCat; 10-05-2012 at 05:07 PM.

11-26-2012, 10:10 AM	#14
Manisphere Member Posts: 18 Karma: 10 Join Date: Jan 2012 Device: Sony PRS-T1	And it happened again. Did a hard reset and reloaded my books. Hoping that will work. Honestly, between the occasional freezing/spinning ball issue and the spontaneous drains, I just miss regular books. Out of curiosity, does hard resetting an ereader ever clear the device of bugs or any odd behavior? Last edited by Manisphere; 11-26-2012 at 10:38 AM.

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09-28-2012, 08:19 PM	#2
Ravensknight Serpent Rider Posts: 1,123 Karma: 10219804 Join Date: Jun 2009 Device: Sony 350; Nook STR; Oasis	Have you opened the music player? I did that the first time on my new T1, and couldn't figure out how to close it and it killed the battery. Had to do a reset and then I was good...

09-28-2012, 11:24 PM	#3
portlester Junior Member Posts: 4 Karma: 10 Join Date: Dec 2011 Device: Sony PRST1	I've had the same thing happen on my T1 twice over the last month. Your's may be a different issue and I still haven't confirmed this, but my suspicion is that the wireless did not turn off automatically for me, even though I had put the reader into sleep mode and this drained the battery overnight. On the last occasion (& I can't remember the first time), just before putting the reader down for the night, I was trying to connect to the internet but gave up after the reader took too long to connect. So while it was trying to connect I cancelled the connection and continued reading. Woke up next morning and the reader's battery was flat. Having a later play with this I noted that even when I cancel the reader trying to establish a wireless connection, it continues to try to. What I haven't checked yet is whether or not it then shuts the wireless down automatically (which it normally does do when I am connected and go back to reading). Has anyone else noted this?

09-29-2012, 02:57 AM	#4
filmo Wizard Posts: 1,326 Karma: 1077205 Join Date: Jun 2011 Device: Kobo Touch, Sony T1, Kobo Mini	If you have many books in library lets say 1500+, must not display covers in collections or book list so it does not drain battery and waste time trying to show covers. On each page showing covers or list of books in collections or BOOKS the 4 Icons at top right corner, the left icon displays covers, 2nd icon to right list of books without covers. Touch 3rd icon to right for changing how books are sorted.

09-29-2012, 08:07 AM	#5
Manisphere Member Posts: 18 Karma: 10 Join Date: Jan 2012 Device: Sony PRS-T1	As far as I can guess, it was a badly formatted epub. Is that a thing? Cause I've never had this issue in the 9 months I've owned the reader. I put a new epub in the reader the day before the drain, adjusted the font (something I rarely ever do) and then put the book down. By morning the power was dead. First thing I did when I got it reset was remove said epub. Then I plugged it into the charger. It was fine all day yesterday and this morning I woke up with my reader at 100%. Knock on wood, apparently problem solved. So are there such thing as badly formatted epubs that can keep the reader thinking all night? I'd come across the concept while trouble shooting my issue. It fits my problem so far cause I never play around with the settings and I never use Wi Fi.

10-01-2012, 08:50 AM	#6
bla E bookworm Posts: 358 Karma: 2013666 Join Date: Jul 2010 Location: Ontario, Canada Device: Sony PRS T1,Android Tablet, I phone	Yeah.... you need to turn the wi-fi OFF not on standby and as already mentioned make sure your mp3 player is shut down and yes it is possible that the reader was continually trying to load/display a corrupt e-pub doing a soft-reset (paperclip) or powering off would ensure that all is shut down.. looks like you solved it whatever it was lol

10-05-2012, 04:37 AM	#7
MickiTee Guru Posts: 838 Karma: 3976266 Join Date: Jun 2012 Location: London, UK Device: Sony PRS-505, Pocketbook TL3, TL4, TL5	Glad its not just me this is happening to. The battery drained for the second time last night. I thought it might be that I hadn't fully charged the battery after the first occurance about a week ago, but this might not be case now that I've read this thread. I've performed a full Device Shutdown, checked that the Wi-Fi is off (its usual condition) and am recharging the battery as I type. Will wait to see what happens over the next week or so.

10-05-2012, 03:35 PM	#8
bla E bookworm Posts: 358 Karma: 2013666 Join Date: Jul 2010 Location: Ontario, Canada Device: Sony PRS T1,Android Tablet, I phone	Yeah let us know what happens

10-25-2012, 05:56 AM	#10
MickiTee Guru Posts: 838 Karma: 3976266 Join Date: Jun 2012 Location: London, UK Device: Sony PRS-505, Pocketbook TL3, TL4, TL5	Wll two weeks down the road and I haven't had another drained battery overnight. Stayed well away from the Wi-Fi. I've recharged the battery, added & removed books and notes without a problem. Hopefully this was a one off and I won't have any more problems.

10-28-2012, 07:54 PM	#11
altruizine Senior Altruist Posts: 82 Karma: 600554 Join Date: Jun 2012 Device: Onyx Boox C67ML, Onyx Boox Note Pro	I've observed this a few times as well. Following a suggestion from another thread, I noticed that often the Reader does not enter deep sleep mode (standby) correctly when it was booted with a connected charger (for example when booting after a shutdown caused by a fully depleted battery). In this case, the battery depletes within a few hours. You can check whether this is the problem in your case by pressing one of the page-turn buttons when the reader appears to be in standby mode; if the reader wakes up from this button press, it did not enter standby correctly. The cure is to switch the reader off after removing the charger and to reboot it without any USB cable attached.

11-20-2012, 03:55 PM	#12
Manisphere Member Posts: 18 Karma: 10 Join Date: Jan 2012 Device: Sony PRS-T1	Aww, Dang! It happened again. The only thing I can link it to is that I took out a library book yesterday. Dang.