Database Develop

[Q] getting heated up very fastly

hey
i got my xperia z today and my problem is about battery and
phone is not charing up fastly and facing a problem of heating up of phone fastly
is this problem takes place only with me
plz help me

meghanath reddy said:
hey
i got my xperia z today and my problem is about battery and
phone is not charing up fastly and facing a problem of heating up of phone fastly
is this problem takes place only with me
plz help me
Click to expand...
Click to collapse
I dont have any of this problems. Probably is best if you contact Sony.

My xperia z gets pretty hot at the top as well....hmm

meghanath reddy said:
hey
i got my xperia z today and my problem is about battery and
phone is not charing up fastly and facing a problem of heating up of phone fastly
is this problem takes place only with me
plz help me
Click to expand...
Click to collapse
I have this problem too...

I must admit the phone does get a little hot after a short period of usage.
However I think the reason for this being: the phone is waterproof.
This is just an speculation:
I assume that when making a device waterproof they use rubber parts inside so no water can get near the motherboard and such.
I also think that sealing the phone in such way causes the heat that builds up inside can go nowhere.
This casuing the device to heat up more fast and cool down less fast.
Again, this is just a speculation.
Kind regards, Stefan.

charging
my phone is even taking more time to charge
nearly 3 to 4 hrs to full charge
does any one have the same problem

meghanath reddy said:
my phone is even taking more time to charge
nearly 3 to 4 hrs to full charge
does any one have the same problem
Click to expand...
Click to collapse
I have noticed it actually doesnt charge when I am using the phone at the same time, sometimes it even DRAINS? Don't know if this is because I am charging through my laptop? But never had this problem with my Neo

what to do with phone now
giving less battery and phone is getting heated up fastly
not charging fastly
cant even talk phone by keeping it near ear

meghanath reddy said:
what to do with phone now
giving less battery and phone is getting heated up fastly
not charging fastly
cant even talk phone by keeping it near ear
Click to expand...
Click to collapse
That is not a question for XDA, that is a question for your dealer.

Maybe you can try washing it to rinse the heat away?
Sent from my MT27i using xda app-developers app

The phone heats up because it's Water proof? Seriously these are the kind of answers people are giving on xda these days? Haha. No.
My phone charges fine on AC and doesn't get hot at all it only gets warm on charger.
Get replacement.

I have the same issue. After spending all night on the charger, the battery was only at 63% and the phone was very hot. I shutdown and restarted, and the phone charged quickly and became cool. The cause seems simple - some process or app is consuming CPU cycles and draining the battery as fast as it can be charged. After restart, the rogue app was stopped and the phone behaves normally again.
I have a suspicion that it's something to do with Throw/Sharing as the devices process seems to be using the largest proportion of battery. I'll keep an eye on this.
SF

I think his point is the unit is airtight "waterproof" and no air circulation compared to other phone thus heat accumulate faster.
Sent from my C6603 using xda app-developers app

Jepoy68 said:
I think his point is the unit is airtight "waterproof" and no air circulation compared to other phone thus heat accumulate faster.
Click to expand...
Click to collapse
The idea that there's room inside any smartphone or tablet for air to circulate, is pretty wild. Rather than convection, phone chipsets are cooled via software (controlling clock speeds), conduction and a little radiation.
SF

I am facing this problem from starting and
After using any application for 10 min phone is getting heated up
Full battery of charge giving me only 4 hours of life to my phone

i had a working 32gb scandisc sd card..and today after playing TDKR for like 40 minutes the device really heated up and after quitting the game i had a notification stating that i have to format the sd..took it out and put it in again it didnt see it at all..even my pc dont see my sd card.. could the sd card get damaged because of the heat ????

PeZoII said:
i had a working 32gb scandisc sd card..and today after playing TDKR for like 40 minutes the device really heated up and after quitting the game i had a notification stating that i have to format the sd..took it out and put it in again it didnt see it at all..even my pc dont see my sd card.. could the sd card get damaged because of the heat ????
Click to expand...
Click to collapse
Flash memory is actually quite resistant to heat, and the amount of heat generated by your phone shouldn't be enough to kill it. Take your card out and clean the golden fingers (contacts) with a pencil eraser or rubbing alcohol to see if it's a contact problem. Heat may have accelerated corrosion on the gold plated contacts, but that's just an extreme scenario. If this doesn't work, your card is probably dead if you can't format it or find it under disk management...
meghanath reddy said:
I am facing this problem from starting and
After using any application for 10 min phone is getting heated up
Full battery of charge giving me only 4 hours of life to my phone
Click to expand...
Click to collapse
Heating up at the top area is normal, especially under warmer climates. As glass is a better conductor of heat than plastic, it's actually helping to dissipate the heat faster.
As for your battery life, 4hrs seems pathetic, unless it was under continuous nonstop use with screen on and performing battery eating tasks. It should survive for ~5hrs under continuous, intensive use. Ymmv, of course, depending on other factors such as screen brightness/network type/signal strength/WiFi...

Gez77 said:
Maybe you can try washing it to rinse the heat away?
Sent from my MT27i using xda app-developers app
Click to expand...
Click to collapse
Liquid cooled :3

Worse thing is playing a game for 20mins then getting a call.
Hope the heat doesn't give me a tumor.

First of all, using the phone while charging will obviously make it heat up like hell. Please be aware of that, and that its not recommended to do so.
Secondly, for the guy whose battery was draining while charging via USB, the USB port might not be feeding up all the milliamps the Xperia Z needs to be charged. Try with a USB 3.0 port or make sure you're using a port that provides more than the standard 500ma a USB 2.0 port provides.
@off
If you think the Xperia Z heats up, this is because you've never used an Sony Ericsson Satio.

[Q] Xperia T battery problem

*snip*

From your description, it seems like the battery is defective.
I had a similar experience.

I am the king of this experience my battery was dead in the same way the phone shut donw immediately after unplug it from the wall
Inviato dal mio GT-I9300 con Tapatalk 4

It's coming, one year after release, all batteries will be dead.
Btw. I changed my battery about 2 months ago and now, when I have about 3% and I am using GPS, the phone shuts down without warning.
I guess I can say that. Xperia T is really poor product. I've never had so bad experience with battery or power manager or whatever is responsible for this, on any mobile device I've owned.
Poor Bond...

*snip*

Christophelaures said:
I got my phone less than 2 months ago, what fun it is when it already dies. they shouldn't have made built-in batteries, because you can't replace them so easily anymore
Click to expand...
Click to collapse
It's a longshot, but it might be that the battery connector is not completely secure, and ends up getting enough of a juice boost when you plug in the charger, maybe because it's a 5V charger and the battery is rated at 3.7V.
LT30p instruction: open the sim/memory flap, remove the little screw ion the side, and carefully pry the case open with a plastic tool along the entire edge, bit by bit, until it pops off real easy.
LT30a instruction: pry off the top and bottom back pieces (they feel more rubbery than the main piece) and remove all 4 screw holding down the main piece, and carefully pry the case open with a plastic tool along the entire edge, bit by bit, until it pops off real easy.
The battery connector should have the "+" and "-" symbols on the top, but there shouldn't be a problem finding it (it's obviously next to the battery )
Good Luck

This is really not the connector problem, when it happens over and over again, even with new battery.
I've been monitoring voltage drop under different circumstances. Even with new battery and over 1000mA drain, the voltage drops by almost 300mV.
I've been using batteries in other device types, capable to give more than 20C, without such voltage drop.
I know that I can't compare big batteries from helicopter models with this one, but 1000mA is only 0,56C of 1780mAh battery. And the worst thing is, that this should be a "Bond" phone.

Good morning I tried to disassemble the battery to change only the cell pack but without positive results the problem is the metallic pin where the battery is plugged they are in inverted position and the battery does not enter in its position. I am wait the new that come from Cina and need more time
Inviato dal mio GT-I9300 con Tapatalk 4

I had the same problem happen to me. I purchased my Xperia T in October 2012 and have only been experiencing these restarts for about 2 weeks from now. The gut feeling I had that started this was after I was using my phone as a GPS and charging it in my car at the same time, my phone became really hot and shut itself down.
Anyways, I almost 100% knew it was the battery. SO, I went online to purchase a Brand new battery and replaced it myself. After 2 days use, it is as good as New. (so far) Proving more to the point that is was indeed the battery.
I knew that if I sent it to Sony they would take too long and possibly not even fix it. Instead it took me a few mins to look for the New battery and less than 30 mins to install it!
If anyone needs help replacing their broken battery with a new one, message me.
Hope this helps.

My XT is 5 months old and last saturday I started experiencing same issues but I thought it was caused by faulty SIM card. I reset my phone, made repair several times with SUS and PC Companion but without success. When I remove SIM card phone will boot normaly but when SIM is inserted and battery level is under 50% it will shuts down as soon as it gets GSM signal.
Then I discovered that when it is connected to charger it will boot up normaly again and if I remove charger and try to send SMS or make call it will simply shuts down.
I am very dissapointed. I love Sony but this should not happening.

Replaced old battery with new one and all my problems gone

About to get the Z1, how prevalent is the self-cracking issue?

Hey guys,
Title says it all! I am sold on the Z1 (Z2 too expensive) but the self-cracking issue got me worried hard...its the ONLY reason I'm not getting this right now, how prevalent is it really? Thanks!

I have never heard of it, don't even know what you mean.
And don't worry, I have already asked the mods to move your question to the Q and A section
Sent from my C6903 using XDA Premium 4 mobile app

gregbradley said:
I have never heard of it, don't even know what you mean.
And don't worry, I have already asked the mods to move your question to the Q and A section
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Oh my apologies! Thanks
Has anyone experienced this?

I can double the fact that I never heard about this. What is it?

He mean that the Z1 cracking the glass, front or back, by itself. Still unclear how, but someone said it happen on they phones.

Probably a chick that wears skin tight jeans and keeps the phone in their back pocket said it then wonders how the screen cracked lol.
Sent from my C6916 using Tapatalk

It happens. Look at sony support forums. They say it was no hit then crack or it just cracked by itself.. Sony addressed the issue i think? I mean, they responded. I forgot their response though just look through the sony support forum.

mahalkosijoy said:
It happens. Look at sony support forums. They say it was no hit then crack or it just cracked by itself.. Sony addressed the issue i think? I mean, they responded. I forgot their response though just look through the sony support forum.
Click to expand...
Click to collapse
Yea thats the issue. I just don't know how prevalent it is and who wants to deal with customer support all the time you know? It seems like they denied the issue at first but then they replace it in some cases.
All phones have problems but if its prevalent I'd stay away from the Z1, thats why I asked Phone looks amazing though!

My z1s cracked itself.
Went to sleep and when I woke up the back had cracked.
It doesn't affect usage so no big deal to me.

nicefella said:
Yea thats the issue. I just don't know how prevalent it is and who wants to deal with customer support all the time you know? It seems like they denied the issue at first but then they replace it in some cases.
All phones have problems but if its prevalent I'd stay away from the Z1, thats why I asked Phone looks amazing though!
Click to expand...
Click to collapse
Hmm. maybe its a problem for a given batch of z1? Maybe they fixed or solved the problem in other batches, like productiob batches. Like cars. Sometimes they call a specific batch back to get fixed because of problems, then the other batches are ok?

Possibly referring to overcharging the device, the battery swelling , the phone bending and the glass cracking, if this is the case then I can tell you that if you don't overcharge your device (excessively anyway) you won't have this issue, the phone itself is glass but is relatively sturdy and a few knocks here and there won't give you any problems, a drop from height and you might have an issue.
Hope this helps.

What do you mean by excessively charging? Too many times or too much time per charge? Or both? Thx in advance.

dladz said:
Possibly referring to overcharging the device, the battery swelling , the phone bending and the glass cracking, if this is the case then I can tell you that if you don't overcharge your device (excessively anyway) you won't have this issue, the phone itself is glass but is relatively sturdy and a few knocks here and there won't give you any problems, a drop from height and you might have an issue.
Hope this helps.
Click to expand...
Click to collapse
Rubbish. My handset is almost permanently on charge either on my bedside table (from the moment I get in as it provides my Hotspot), my desk at work (I don't carry it around as I'll break it) or in the van providing handsfree and GPS. Most of this time it's got the screen ON and is being charged with a 2500mAh charger.
If one was too overcharge it would be mine and it never has.

Kirkymole said:
Rubbish. My handset is almost permanently on charge either on my bedside table (from the moment I get in as it provides my Hotspot), my desk at work (I don't carry it around as I'll break it) or in the van providing handsfree and GPS. Most of this time it's got the screen ON and is being charged with a 2500mAh charger.
If one was too overcharge it would be mine and it never has.
Click to expand...
Click to collapse
http://www.phonearena.com/news/Xperia-Z1-frame-bending-for-no-reason-claim-users_id51383
Rubbish? Really? Well explain this then? This is due to excessive heat and overcharge and a bloated battery.
When the battery bloats it has no where to go, i've seen this many times on devices, namely the kit used to diagnose problems on BMW and mercedes cars uses a blue battery and i've seen them triple in size when overcharged and eventually the screws, the sides of the device split, So no not rubbish at all, do your home work.
---------- Post added at 10:47 AM ---------- Previous post was at 10:44 AM ----------
albertmed98 said:
What do you mean by excessively charging? Too many times or too much time per charge? Or both? Thx in advance.
Click to expand...
Click to collapse
excessive as in overcharging constantly, especially with a charger which outputs too much power. the battery will eventually bloat, this can't be good for the components inside, whether or not that this device in the article is due to that or not is anyones guess, but i've seen devices split from a battery which has bloated beyond its limits. This is usually due to a few factors, excessive heat, charge or water damage.
I don't know why but it happens, galaxy devices see this issue more than others.

dladz said:
http://www.phonearena.com/news/Xperia-Z1-frame-bending-for-no-reason-claim-users_id51383
Rubbish? Really? Well explain this then? This is due to excessive heat and overcharge and a bloated battery.
When the battery bloats it has no where to go, i've seen this many times on devices, namely the kit used to diagnose problems on BMW and mercedes cars uses a blue bag type battery and i've seen them triple in size when overcharged and eventually the screws, the sides of the device split, So no not rubbish at all, do your home work.
Click to expand...
Click to collapse
The article says 'possibly'. It's not confirmed. One of the the things I was asked when my old handset went in for repair was 'is it bent?'. Obviously I said no and asked why, Sony's comment, on the phone, was that the bending people had experienced was due to people sitting on their handsets or putting them in trouser pockets and the pressure combined with heat was causing them to bend.
More to the point. The battery is towards the bottom of the handset. The pictures of bent handsets show the bends to be at the top, nearer the processor.
Sent from my C6903 using XDA Premium 4 mobile app

http://en.wikipedia.org/wiki/Lithium-ion_battery#Battery_life
Read the battery life, conditioning and multi cell device sections
This describes the misconceptions surrounding Li-ion batteries (That are in our Z1's) including the fact that the software in the phone prevents overcharging and will also lead the battery to discharge whilst still plugged in order to give the battery max performance/life.
If a battery in our mobile phones is getting overcharged that will be a symptom of another fault, namely something wrong with the phone software. Our batteries will look after themselves, there is no need to worry
Here is another point about not completely discharging Li-ion batteries
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/

gregbradley said:
http://en.wikipedia.org/wiki/Lithium-ion_battery#Battery_life
Read the battery life, conditioning and multi cell device sections
This describes the misconceptions surrounding Li-ion batteries (That are in our Z1's) including the fact that the software in the phone prevents overcharging and will also lead the battery to discharge whilst still plugged in order to give the battery max performance/life.
If a battery in our mobile phones is getting overcharged that will be a symptom of another fault, namely something wrong with the phone software. Our batteries will look after themselves, there is no need to worry
Here is another point about not completely discharging Li-ion batteries
http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/
Click to expand...
Click to collapse
Ok so the Li ion battery found in the device i was referring to bloated, it was plugged in all of the time, in a different dealer the same machine was cared for by not being over charged, and didn't experience the bloat? reports from several other garages of the same thing.
How do you explain that?

I am not trying to explain anything
Just pointing out some articles, from what I read in them the OS will look after the battery more than us, and that it is OK to leave it on charge without waiting until it is completely discharged. Then, about once a month you should completely discharge it and fully charge to calibrate the software
Maybe the chargemon file in our phones looks after the battery more than the software in those machines you are talking of, its the OS that looks after the battery

gregbradley said:
I am not trying to explain anything
Just pointing out some articles, from what I read in them the OS will look after the battery more than us, and that it is OK to leave it on charge without waiting until it is completely discharged. Then, about once a month you should completely discharge it and fully charge to calibrate the software
Maybe the chargemon file in our phones looks after the battery more than the software in those machines you are talking of, its the OS that looks after the battery
Click to expand...
Click to collapse
Not sure m8, all i know is that if phones are left to charge all the time they experience anomalies, any phone that's been left in a shop for a period of time will experience the issues, I know there are fail safes in place but issues still occur on all devices, primarily and the most noticeable is sporadic touch screen issues although the newer handsets have been able to erradicate this somewhat, but the bloating battery from overcharging is very real, if i'd not seen it with my own eyes then i would be sceptical too.
Whether this phone bending phenomenon is solely due to overcharging or not i''m not sure but i'd say it's definitely a factor.
---------- Post added at 11:43 AM ---------- Previous post was at 11:40 AM ----------
Kirkymole said:
The article says 'possibly'. It's not confirmed. One of the the things I was asked when my old handset went in for repair was 'is it bent?'. Obviously I said no and asked why, Sony's comment, on the phone, was that the bending people had experienced was due to people sitting on their handsets or putting them in trouser pockets and the pressure combined with heat was causing them to bend.
More to the point. The battery is towards the bottom of the handset. The pictures of bent handsets show the bends to be at the top, nearer the processor.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
excessive heat and sitting on the phone? I'd have thought that the glass would have broken way before that it bent, and the battery isn't on the bottom, it's from the bottom all the way up to three quarters of the phone. So it's actually a plausible theory that battery bloating could have caused it to bend.

dladz said:
Not sure m8, all i know is that if phones are left to charge all the time they experience anomalies, any phone that's been left in a shop for a period of time will experience the issues, I know there are fail safes in place but issues still occur on all devices, primarily and the most noticeable is sporadic touch screen issues although the newer handsets have been able to erradicate this somewhat, but the bloating battery from overcharging is very real, if i'd not seen it with my own eyes then i would be sceptical too.
Whether this phone bending phenomenon is solely due to overcharging or not i''m not sure but i'd say it's definitely a factor.
---------- Post added at 11:43 AM ---------- Previous post was at 11:40 AM ----------
excessive heat and sitting on the phone? I'd have thought that the glass would have broken way before that it bent, and the battery isn't on the bottom, it's from the bottom all the way up to three quarters of the phone. So it's actually a plausible theory that battery bloating could have caused it to bend.
Click to expand...
Click to collapse
Then I took mine apart it seemed the battery was more towards the bottom than the top. But it is plausible the battery could cause bending. Seems odd though as the heat would be greater in the centre of the battery, not one corner.
Sent from my C6903 using XDA Premium 4 mobile app

[Q] Xperia Z1 Battery Temperature Sensor Wrong Reading

Came here with a heavy heart. Bought a Xperia Z1 2 weeks ago. Yesterday, suddenly phone started to show wrong temperature data of battery. It showed about 60+ degree Celsius. And, I am sure there's a problem on the battery temperature sensor. Due to overheat(faulty battery temperature data), I cant charge properly and phone keeps shutting down randomly. I've tried flashing stock roms, deleted battery stats. Still no luck!!!
Is there any way to reset temperature sensor? Or, which system app controls auto shut down and charging? So, I can disable/freeze that.
Thanks in advance.

No humble person to help me??!!!!

Send back to Sony Sevices Center. [emoji1]

Go in /sys/devices/qpnp-charger-f8520800/
power_suppIy/battery/temp_warm and change a max temperature of battery (sorry for the bad English I'm not)

mmhasanovee said:
Came here with a heavy heart. Bought a Xperia Z1 2 weeks ago. Yesterday, suddenly phone started to show wrong temperature data of battery. It showed about 60+ degree Celsius. And, I am sure there's a problem on the battery temperature sensor. Due to overheat(faulty battery temperature data), I cant charge properly and phone keeps shutting down randomly. I've tried flashing stock roms, deleted battery stats. Still no luck!!!
Is there any way to reset temperature sensor? Or, which system app controls auto shut down and charging? So, I can disable/freeze that.
Thanks in advance.
Click to expand...
Click to collapse
Did you manage to get this sorted? This problem is usually indicative of a bad connection in the battery pins, check this thread: http://forum.xda-developers.com/xperia-z/help/hardware-fix-xperia-z-charging-booting-t2760911
I haven't followed the steps yet but do have a Z1 which won't boot or charge, after I already swapped the battery and temporarily sorted it

Hermensnxd said:
Go in /sys/devices/qpnp-charger-f8520800/
power_suppIy/battery/temp_warm and change a max temperature of battery (sorry for the bad English I'm not)
Click to expand...
Click to collapse
Did this works?

willflux said:
Did this works?
Click to expand...
Click to collapse
Nope it did not work for me

mmhasanovee said:
Came here with a heavy heart. Bought a Xperia Z1 2 weeks ago. Yesterday, suddenly phone started to show wrong temperature data of battery. It showed about 60+ degree Celsius. And, I am sure there's a problem on the battery temperature sensor. Due to overheat(faulty battery temperature data), I cant charge properly and phone keeps shutting down randomly. I've tried flashing stock roms, deleted battery stats. Still no luck!!!
Is there any way to reset temperature sensor? Or, which system app controls auto shut down and charging? So, I can disable/freeze that.
Thanks in advance.
Click to expand...
Click to collapse
Have you found any solution yet? Mine is hovering between -30C to 10C :crying:

Hi, just some information for those who end up looking at issues with wrong temperature readings on Z1 (and possibly other SONY) batteries.
I've decided to replace the battery in my Z1 but turned out the new battery didn't provide usable temperature information. It was always around 22 ± 0.5 °C. This disturbed me a lot as proper charge control is impossible if no accurate temperature readings are available which would in turn result in too high charging current being used when the battery is heated up leading to premature ageing of the battery. I've decided to investigate further, and it turned out that somehow the TH signal of my new battery is always around 36kΩ (measured between the battery negative (left side of the connector) and the middle top connection point (if you have the battery connector in front of you that the negative pole is on the left)) regardless of the temperature. For comparison I've measured the other battery that is working fine, and (not too) surprisingly it changes between thrity-something kΩ on room temperature to around 18kΩ when heated to cca. 40 °C.
I'm not sure if the battery is simply faulty or if they have left out the temperature sensor intentionally, because after more detailed investigation (under strong magnification) I've found several points where the manufacturing quality is lower than the previous one, like the cutout contour of the ribbon cable is less precise, the connector itself has no written marks on it while the good one does, plastic parts are not that nicely made, and although both has identical written markings (apart from trivial differences like serial and manufacture date), the typeface is slightly different, also the surface of the battery and the color is not the same. Some of these may be normal as my good battery is made in 2013 while this new one in 2017, however I still cannot decide if i got a fake one with the SONY branding on it, or if SONY simply shifted the manufacturing of the batteries to a cheaper factory with lower quality? Also not sure if they left the temperature sensor out intentionally to reduce costs or I might just get the one out of thousands that's faulty. One thing for sure, that sensor is needed, it's not just an FYI sensor, it used to control the charging current. And i'd assume SONY would not sell batteries without minimal quality assurance in order to detect faults. I'm also suspicious that the new battery was discharging a bit faster than my years old one, as far as i can tell based on one day of usage before i put back the old one so one more clue that suggests fake, very convincing, almost perfect looking fake.
What do you think guys, is it possible that SONY is reducing manufacturing quality for replacement parts or did I got a fake replacement? (I might post closeup photos later if anyone's interested.)
Also and advice, measure the TH signal before installing a replacement, and if it's constant regardless of temperature, ask your money back rather than using it as a replacement part.

grapestain.m8 said:
Hi, just some information for those who end up looking at issues with wrong temperature readings on Z1 (and possibly other SONY) batteries.
I've decided to replace the battery in my Z1 but turned out the new battery didn't provide usable temperature information. It was always around 22 ± 0.5 °C. This disturbed me a lot as proper charge control is impossible if no accurate temperature readings are available which would in turn result in too high charging current being used when the battery is heated up leading to premature ageing of the battery. I've decided to investigate further, and it turned out that somehow the TH signal of my new battery is always around 36kΩ (measured between the battery negative (left side of the connector) and the middle top connection point (if you have the battery connector in front of you that the negative pole is on the left)) regardless of the temperature. For comparison I've measured the other battery that is working fine, and (not too) surprisingly it changes between thrity-something kΩ on room temperature to around 18kΩ when heated to cca. 40 °C.
I'm not sure if the battery is simply faulty or if they have left out the temperature sensor intentionally, because after more detailed investigation (under strong magnification) I've found several points where the manufacturing quality is lower than the previous one, like the cutout contour of the ribbon cable is less precise, the connector itself has no written marks on it while the good one does, plastic parts are not that nicely made, and although both has identical written markings (apart from trivial differences like serial and manufacture date), the typeface is slightly different, also the surface of the battery and the color is not the same. Some of these may be normal as my good battery is made in 2013 while this new one in 2017, however I still cannot decide if i got a fake one with the SONY branding on it, or if SONY simply shifted the manufacturing of the batteries to a cheaper factory with lower quality? Also not sure if they left the temperature sensor out intentionally to reduce costs or I might just get the one out of thousands that's faulty. One thing for sure, that sensor is needed, it's not just an FYI sensor, it used to control the charging current. And i'd assume SONY would not sell batteries without minimal quality assurance in order to detect faults. I'm also suspicious that the new battery was discharging a bit faster than my years old one, as far as i can tell based on one day of usage before i put back the old one so one more clue that suggests fake, very convincing, almost perfect looking fake.
What do you think guys, is it possible that SONY is reducing manufacturing quality for replacement parts or did I got a fake replacement? (I might post closeup photos later if anyone's interested.)
Also and advice, measure the TH signal before installing a replacement, and if it's constant regardless of temperature, ask your money back rather than using it as a replacement part.
Click to expand...
Click to collapse
I think you got a fake, last year I had my phone in a offical service center (dead battery) and they replaced the battery with 2013 one... (and it's working fine since then)
Chinese manufacturers often leave out things that are not necessary for it to work (and that increase the price). And they often sell batteries with lower capacity than they say.
2 weeks ago I had to replace the screen... I bought some Chinese one from aliexpress and now I have random touches :crying: Probably intentional bad quality too...

wrong temperature battery,
just replace battery with original ones,
or, buy second battery and new replica battery, swap component replica with second battery
original battery had thermal resistor in battery componet
replica dont had

Where to get reliable original battery? Fakes are everywhere... Is there still any source of original battery for such an old model?

Replaced my Tab S battery/USB port but still not starting/charging

Hey everyone,
I recently replaced the battery and USB port in my Tab S 10.5 because it wasn't charging properly and the battery eventually died on me. The battery was sitting around for about 1.5 years before I got around to installing it and I believe it was second hand. After replacing the battery/USB port I realised it still wasn't charging so I tested the battery voltage and realised it's 2.81v when it should be 4.2v on both cells when charged (it's a 3.8v battery).
Does anyone know what is the likely problem? I don't know if 2.8 volts is too low or if that's just normal discharge voltage. I need to know if it's worth me buying a new battery or not because obviously I don't want to spend the money on another battery if the problem is something else. Is there any way of troubleshooting whether the battery is the problem or not? What other problems could cause a device to just not start entirely? I know the charging port could be another issue but that's why I replaced it, the replacement was second hand though (despite being advertised as new). Nothing bad has happened to the tablet, I've never dropped it or got it wet for example.
Sorry if this is the wrong place to discuss hardware like batteries but I couldn't find any other place to discuss something like this.
Thanks for any help,

quantumboner said:
Hey everyone,
I recently replaced the battery and USB port in my Tab S 10.5 because it wasn't charging properly and the battery eventually died on me. The battery was sitting around for about 1.5 years before I got around to installing it and I believe it was second hand. After replacing the battery/USB port I realised it still wasn't charging so I tested the battery voltage and realised it's 2.81v when it should be 4.2v on both cells when charged (it's a 3.8v battery).
Does anyone know what is the likely problem? I don't know if 2.8 volts is too low or if that's just normal discharge voltage. I need to know if it's worth me buying a new battery or not because obviously I don't want to spend the money on another battery if the problem is something else. Is there any way of troubleshooting whether the battery is the problem or not? What other problems could cause a device to just not start entirely? I know the charging port could be another issue but that's why I replaced it, the replacement was second hand though (despite being advertised as new). Nothing bad has happened to the tablet, I've never dropped it or got it wet for example.
Sorry if this is the wrong place to discuss hardware like batteries but I couldn't find any other place to discuss something like this.
Thanks for any help,
Click to expand...
Click to collapse
Hello,
Please check the soldering join of the battery socket on the PCB. You may need to use a magnifier or similar tools to get a good look. The solder joins seem to be pretty weak and could be damaged when you replaced the battery. Socket pins on the plastic plug came with those Chinese replacement battery has high insertion force. They make good contact with the pin on the plastic PCB receptacle but could exert excessive force on the PCB join during engaging or removal. It is feasible to repair it if you have suitable soldering tip (chisel type is better) and good eyes. Space is limited due to the RF shielding cage right besides the join. Try going in from the top near vertical way. If available, try working with a microscope.
I went through more or less the same thing you had. First replacing the battery, and port, But performance was strange. Sometimes it charges well to 100% But once in a while it stops in the middle. When the capacity went below 60%, tablet could reset under heavy use. Sometimes it drops from 40% to 15% in less than 15 minutes. It got worse and worse. After installing 3C Battery Manager, I found out there was sudden and severe voltage drop and temperature spike when resetting happens. At the beginning I suspected battery issues as we all know getting those replacement battery is like a gamble. I got another battery from a different vendor and similar thing happened. After fixing the soldering joins, it works really well now and I can enjoy a few days on light use without charging.
Also, some of those replacement batteries are picky on charger. Most likely due to the "innovative" cost-cutting protection circuit design. Some fast charger use a very low charging current and takes very long time to get to 100%.
Good luck !

If it's a multilayered PCB be very careful soldering it. You need to know how to solder well. Excessive/prolonged heating and poor desoldering technique can destroy them.
Replace the battery and go from there. It may have auto shutdown from low cell voltage, if so it's not worth mucking with.
If that doesn't get it's probably a mobo failure of some type.

Hey guys thanks for your replies. Sorry that I forgot about this after I didn't get any replies or I would of updated it. I did manage to get it sorted, the problem was the charger I was using, it wasn't providing enough current so the battery refused to charge at all. It would only charge when plugged into the mains on a decent adapter.