PRS-T1 Device shuts off with 70% battery

kintrupf · 04-16-2013, 07:36 AM

For a long while I noticed that my PRS-T1 had very little battery life. I could not really pinpoint it to a percentage, but the battery seemed to be empty after a hundered pages at most. I never noticed any bars missing in battery meter, but suddendly the device is out of power.

After rooting the device and installing another battery meter it displayed 70% when it powered off.

Weird, isn't it? Can I assume that the battery is "nearly dead" and should be replaced? The device is a bit over two years old.

booklover6 · 04-16-2013, 07:54 AM

I would remove all books and then put only a few on, and see if that makes a difference.

Teknikal · 04-16-2013, 10:35 AM

Quote:

Originally Posted by kintrupf

For a long while I noticed that my PRS-T1 had very little battery life. I could not really pinpoint it to a percentage, but the battery seemed to be empty after a hundered pages at most. I never noticed any bars missing in battery meter, but suddendly the device is out of power.

After rooting the device and installing another battery meter it displayed 70% when it powered off.

Weird, isn't it? Can I assume that the battery is "nearly dead" and should be replaced? The device is a bit over two years old.

It's hard to pin it down to a certainty as Sony's software seems to be terrible at judging the battery accurately.
Ideally I'd tell you to completely drain the battery before recharging it from a mains charger and see if that helped but it's that hard to drain an ereader especially one turning itself off so early you may be better off just buying another reader.

carpetmojo · 04-16-2013, 06:48 PM

You are charging it overnight ? i.e. not just for squirts of power, but a good 8 hr or so charge ?
And from a wall charger, much more reliable than via PC .......

If that fails to correct it, it is more likely to be a dud battery for replacement, providing it's economic ....

Arios · 04-22-2013, 05:54 PM

Did you tried to remove the hack and reinstall the latest firmware anew?

BTW 2 years, depending of the usage, can be sufficient to kill a battery.

kintrupf · 04-26-2013, 04:27 AM

Quote:

Originally Posted by Arios

Did you tried to remove the hack and reinstall the latest firmware anew?

No, I didn't unroot my device.
The problem is unrelated to the firmware, I noticed the very short battery life before when I still had the original firmware.

So I guess I have to find me a new battery...

AJ Starr · 05-08-2013, 10:18 AM

Quote:

Originally Posted by kintrupf

No, I didn't unroot my device.
The problem is unrelated to the firmware, I noticed the very short battery life before when I still had the original firmware.

So I guess I have to find me a new battery...

From another thread:

I had a similar problem- my battery was fully discharging in a matter of hours. Here's how I fixed it:
Fully charged device with wall charger. Once charged did a reset- paperclip + power button.
Battery life back to normal now

JSWolf · 05-15-2013, 08:51 PM

Another thing to do is once the T1 is charged, remove the power cable and charge it again until you get it showing full in less then 1 minute. That will sync the battery.

Nabuccoo · 05-27-2013, 09:22 AM

I have exactly the same with my T1. It is about 1 and a half year that I bought it. For a while the battery drains off very quickly. First I noticed that after 1 day it loses about 40-45% in sleep mode too. So after 2 days the battery was empty. I unrooted it, i thought there is some app that don't let the reader to go deep sleep mode. So after unrooting I updated the firmware to 1.05 and I rroted it again. Now I watched out the apps what I am installing. No widgets or auto sync etc. After 1 day the battery was on 95%, after 3 days it was still 85%, looked normal. Then, a half day later the reader shuted down itself. The battery was fully depleted. After charging, happened the same, 3 and a half day and a the battery is over. I recalibrated it with the battery calibration app. After that the battery was at 95% after 3 days too, and a half day more and it huted down again with empty battery.
After that I tried to drain the battery to 75-80% after chargeing, by useing wi-fi. In this way the battery lasts 8-9 days after shuts down again. And this behavior is regular. Every time, exactly the same. I don't know what can I do to fix it. Or can I do something?
Ohh I am useing usb to charge via pc, I don't have wall charger.
Now I am trying what JSWolf wrote. Maybe it will help...

Nabuccoo · 06-01-2013, 06:21 AM

For everyone who interested. I have tryed JSWolf's hint. It was 5 days ago and the reader is still fine. The battery is on 85%. I will post how much it will last, too.

JSWolf · 06-01-2013, 10:45 PM

Quote:

Originally Posted by Nabuccoo

For everyone who interested. I have tryed JSWolf's hint. It was 5 days ago and the reader is still fine. The battery is on 85%. I will post how much it will last, too.

I hope it works. I would like it know how it works out for you.

Nabuccoo · 06-18-2013, 05:47 AM

Yes, it is definitely works. My T1 shuted off after 20 days. I just read books on it, no wifi or anything else. (It was hard to stop myself to use these stuffs, too.

) I read in this time the first three books of The Saga of Heechee by Fedrik Pohl. So trick that removing and pluging in again the charger after the T1 has fully charged is working perfectly for me.

04-16-2013, 07:36 AM	#1
kintrupf Member Posts: 20 Karma: 10 Join Date: Jan 2012 Location: Germany Device: Energy Sistem eReader Pro (Boyue T62)	Device shuts off with 70% battery For a long while I noticed that my PRS-T1 had very little battery life. I could not really pinpoint it to a percentage, but the battery seemed to be empty after a hundered pages at most. I never noticed any bars missing in battery meter, but suddendly the device is out of power. After rooting the device and installing another battery meter it displayed 70% when it powered off. Weird, isn't it? Can I assume that the battery is "nearly dead" and should be replaced? The device is a bit over two years old.

05-27-2013, 09:22 AM	#9
Nabuccoo Member Posts: 12 Karma: 10 Join Date: Sep 2012 Device: Sony Reader PRS-T1	I have exactly the same with my T1. It is about 1 and a half year that I bought it. For a while the battery drains off very quickly. First I noticed that after 1 day it loses about 40-45% in sleep mode too. So after 2 days the battery was empty. I unrooted it, i thought there is some app that don't let the reader to go deep sleep mode. So after unrooting I updated the firmware to 1.05 and I rroted it again. Now I watched out the apps what I am installing. No widgets or auto sync etc. After 1 day the battery was on 95%, after 3 days it was still 85%, looked normal. Then, a half day later the reader shuted down itself. The battery was fully depleted. After charging, happened the same, 3 and a half day and a the battery is over. I recalibrated it with the battery calibration app. After that the battery was at 95% after 3 days too, and a half day more and it huted down again with empty battery. After that I tried to drain the battery to 75-80% after chargeing, by useing wi-fi. In this way the battery lasts 8-9 days after shuts down again. And this behavior is regular. Every time, exactly the same. I don't know what can I do to fix it. Or can I do something? Ohh I am useing usb to charge via pc, I don't have wall charger. Now I am trying what JSWolf wrote. Maybe it will help... Last edited by Nabuccoo; 05-27-2013 at 09:28 AM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
HD Kindle Fire HD 8.9" battery problem (temperature sensitive device/battery)	Alberich	Kindle Fire	12	01-21-2013 10:55 PM
PRS-T1 Battery problem, shuts down at 70%	MichF	Sony Reader	42	07-23-2012 06:12 PM
internet device with maximum battery life	user	General Discussions	12	06-18-2011 12:08 PM
Classic Multiple device battery drain	Care	Barnes & Noble NOOK	5	10-29-2010 08:22 PM
My device is frozen... how can remove a battery?	Ivan68	Onyx Boox	3	05-21-2010 04:10 PM

04-16-2013, 07:54 AM	#2
booklover6 Grand Sorcerer Posts: 6,533 Karma: 14008730 Join Date: May 2008 Location: PA (USA) Device: Kobo Clara, 2E, Libre, PW4, PW5, 2022 Kindle	I would remove all books and then put only a few on, and see if that makes a difference.

04-16-2013, 06:48 PM	#4
carpetmojo Wizard Posts: 3,117 Karma: 9269999 Join Date: Feb 2011 Location: UK Device: Sony- T3, PRS650, 350, T1/2/3, Paperwhite, Fire 8.9,Samsung Tab S 10.5	You are charging it overnight ? i.e. not just for squirts of power, but a good 8 hr or so charge ? And from a wall charger, much more reliable than via PC ....... If that fails to correct it, it is more likely to be a dud battery for replacement, providing it's economic ....

04-22-2013, 05:54 PM	#5
Arios A curiosus lector! Posts: 463 Karma: 2015140 Join Date: Jun 2012 Device: Sony PRS-T1, Kobo Touch	Did you tried to remove the hack and reinstall the latest firmware anew? BTW 2 years, depending of the usage, can be sufficient to kill a battery.

05-15-2013, 08:51 PM	#8
JSWolf Resident Curmudgeon Posts: 73,897 Karma: 128597114 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Another thing to do is once the T1 is charged, remove the power cable and charge it again until you get it showing full in less then 1 minute. That will sync the battery.

06-01-2013, 06:21 AM	#10
Nabuccoo Member Posts: 12 Karma: 10 Join Date: Sep 2012 Device: Sony Reader PRS-T1	For everyone who interested. I have tryed JSWolf's hint. It was 5 days ago and the reader is still fine. The battery is on 85%. I will post how much it will last, too.

06-18-2013, 05:47 AM	#12
Nabuccoo Member Posts: 12 Karma: 10 Join Date: Sep 2012 Device: Sony Reader PRS-T1	Yes, it is definitely works. My T1 shuted off after 20 days. I just read books on it, no wifi or anything else. (It was hard to stop myself to use these stuffs, too. ) I read in this time the first three books of The Saga of Heechee by Fedrik Pohl. So trick that removing and pluging in again the charger after the T1 has fully charged is working perfectly for me.

Advert

Advert