Hi,
will an android device work with a dead battery (or with it removed) but with ac plugged in?
will your android phone still work with the battery removed and ac plugged in?
Try it and state your models.
Thanks
I don't think phones work on AC power without the battery like laptops do.
I have a Sony Xperia SL, Xperia Z Ultra, and a Xperia Tablet Z in the house and the battery is not removable in all of them, but if they are absolutely dead and I plug in the charger they first charge before switching on, if even for a few seconds.
I tried with a device called the Karbonn A5 which has a removable battery, and it didn't switch on.
I also tried with an old phone, the Sony Ericsson W810, and it didn't switch on either.
Hi,
Yes, thank for your reply.
I have a cheap China product which do not boot if the power of the battery is below 20% and start charging. So I guess the device would not possibly boot if there is no battery (or removed) when the battery is dead.
So are the Sony Xperia SL, Xperia Z Ultra, and a Xperia Tablet Z still operate with ac charging after the battery dead?
Have anyone had a device that has the battery dead?
Anyone can check the android source code to make sure about this too?
The Sony Xperia SL, Xperia Z Ultra, and a Xperia Tablet Z don't operate with ac charging after the battery is dead, but they do not need to be charged to 20% before using. They can be used just after a few seconds of charge if they are plugged in, I am guessing after 1% is charged maybe.
Check out this thread - http://www.googlenexusforum.com/forum/nexus-7-discussions/7138-can-nexus-7-run-off-ac-power.html
One day i pulled battery and my phone switch were still switch on. but get switched off quickly it was a china phone (Lemon t39)
•axe• said:
One day i pulled battery and my phone switch were still switch on. but get switched off quickly it was a china phone (Lemon t39)
Click to expand...
Click to collapse
So you have android phone with its battery removable?
We want the device to be used more than that is promised, which is only 1 year warranty. The device may still be used for some other purpose such as watching videos, reading news or as a bed night/alarm clock when it is plugged on the ac adapter. Otherwise, it would become waste.
As per my title, can anyone confirm if the UK version of the Sony Z3 D6603 is Quick Charge 2.0 compatible?
If so I can't find a Sony Quick Charge 2.0 adapter either?
Many thanks,
figo_rulz11 said:
As per my title, can anyone confirm if the UK version of the Sony Z3 D6603 is Quick Charge 2.0 compatible?
If so I can't find a Sony Quick Charge 2.0 adapter either?
Many thanks,
Click to expand...
Click to collapse
Hello figo_rulz,
I can comfirm that the Sony Xperia Z3 D6603 has Quick Charge 2.0 built in, as the Sony Xperia Z3 Consists of the 'Snapdragon 801 chip' which is believed to hold the Quick charge 2.0 Capability (You can also check on their website: https://www.qualcomm.com/products/snapdragon/quick-charge)
Sony sells a 'Quick charger' also here's the link listed below:
http://www.sonymobile.com/gb/products/accessories/quick-charger-ep881/
Hussain_Salam said:
Hello figo_rulz,
I can comfirm that the Sony Xperia Z3 D6603 has Quick Charge 2.0 built in, as the Sony Xperia Z3 Consists of the 'Snapdragon 801 chip' which is believed to hold the Quick charge 2.0 Capability (You can also check on their website: https://www.qualcomm.com/products/snapdragon/quick-charge)
Sony sells a 'Quick charger' also here's the link listed below:
http://www.sonymobile.com/gb/products/accessories/quick-charger-ep881/
Click to expand...
Click to collapse
Is it definitely all Z3's devices? Reason i ask is i heard it's just japan versions which support it.
do you know where you can purchase a UK 3 pin adapter ?or a better alternative adapter?
figo_rulz11 said:
Is it definitely all Z3's devices? Reason i ask is i heard it's just japan versions which support it.
do you know where you can purchase a UK 3 pin adapter ?or a better alternative adapter?
Click to expand...
Click to collapse
Here's a UK Mains Adapter with Fast charge capability:
http://www.amazon.co.uk/Sony-Univer...=1-4&keywords=Sony+quick+charger+ep881+for+uk
Includes cable + adapter
Hussain_Salam said:
Here's a UK Mains Adapter with Fast charge capability:
http://www.amazon.co.uk/Sony-Univer...=1-4&keywords=Sony+quick+charger+ep881+for+uk
Includes cable + adapter
Click to expand...
Click to collapse
So just reading up and it seems EP880 adapter which is what all UK Z3's have is what the adapter also is with the EP881. The only difference is actually the cable as this has two ferrite cores which prevents interference and the EP880 has none. so ideally I would just need to look for the cable as my adapter is capable of this quick charging 2.0! Apparently the cable we have is the EC803 without the two ferrite cores and the one you need to enable quick charging 2.0 is EC802!
The search goes on for the cable!
I use my note 4 quick charger and it works
How fast is it?
Sent from my D6653 using XDA Free mobile app
Despite of what Sony says in this link:
http://talk.sonymobile.com/t5/Xperia-Z3-Z3-Dual/Quick-Charge-2-0/m-p/973745#U973745
I have tested different chargers and came to the conclusion that Quick Charge 2.0 does work with the Xperia Z3 (at least with my variant, the D6633). I could verify that I have happily charged my Xperia Z3 from 10% to 100% in a little less than two hours, using a Motorola Moto Maxx (Droid Turbo) charger, which is a charger with Quick Charge 2.0 technology.
Moreover, I have also verified the charging currents with the Battery Monitor Widget app, and noticed that using different chargers can drastically change the charging speed of our phone.
I am going to take some screenshots tonight when I put the Xperia Z3 to charge and then upload them here tomorrow.
SONY Quick Charger EP881 is NOT QC2.0 compatible/certified. I own one & shipped charger seems better but I hv no clue why.
OK, here are the results for my charging.
Up to 40%, I have recharged my phone with a Moto Maxx (Droid Turbo) Quick Charge 2.0 charger, then I changed to the stock/original Xperia Z3 "quick" charger (EP881), which I have no idea why is named "quick" charger by Sony...
Notice the Moto Maxx charger got me a 1600ma/h charging, which would charge my phone in about 2 hours. The EP881 Sony Stock charger got me around 900ma/h charging. That would led me to a total recharging time of more than 3 hours.
I still could not test different Quick Charge 2.0 chargers, but I can assure that the Moto Maxx/Droid Turbo one DOES work with the Xperia Z3.
It IS QC2.0 compatible, HOWEVER: The charging setup is such that you'll only see a benefit in cases of charging while the system is under load.
The Z3 kernel limits battery charge current to 1.5A (approximately 0.5C) regardless of what charger is attached.
If you attach a non-QC2.0 charger with a VERY high quality cable (less than 3 feet with 24 gauge wire or thicker), you'll typically see 1.5A of battery current WHEN THE SCREEN IS OFF. Even in that case, you won't see consistent 1.5A input into the battery (use CurrentWidget)
Turn the screen on and you will NOT see 1.5A of current going into the battery with a non-QC2.0 charger, as the battery power in is (Vbus input limit - system load)
However, if you have a QC2.0 charger, even with a thin USB cable that would normally lead to extremely poor charging performance, you'll see 1.5A go into the battery under almost any load condition.
TL;DR - It's QC2.0 capable but you'll only see a difference when the device's screen is NOT off. If the device is plugged in to a high-quality USB cable and the screen is off, you'll see only minimal differences.
You'll see a MASSIVE difference if you use one of these cables - http://www.amazon.com/StarTech-com-Micro-USB-Cable-UUSBHAUB3RA/dp/B001AR4NC8/ - These cables aren't particularly good for charging with a standard charger because they're thin - but that same "problem" makes them good for connecting to a phone in a car mount. (I cannot find heavier-gauge cables with a right angle connector). If you use a standard charger with them, you'll find your battery draining with Google Maps Navigation. With a QC2.0 car charger - the battery will actually charge while running Navigation.
I've confirmed QC2.0 functionality with a Tenergy wall charger, a Powermod car charger, and an Aukey external pack. The Tenergy wall charger is nice in that it has an indicator light - blue if in "standard" 5v mode, green if in 9v or 12v QC2.0 modes. Sony's stock chargers are NOT QC2.0 capable.
Entropy512 said:
It IS QC2.0 compatible, HOWEVER: The charging setup is such that you'll only see a benefit in cases of charging while the system is under load.
The Z3 kernel limits battery charge current to 1.5A (approximately 0.5C) regardless of what charger is attached.
If you attach a non-QC2.0 charger with a VERY high quality cable (less than 3 feet with 24 gauge wire or thicker), you'll typically see 1.5A of battery current WHEN THE SCREEN IS OFF. Even in that case, you won't see consistent 1.5A input into the battery (use CurrentWidget)
Click to expand...
Click to collapse
I find it interesting that you say this, because even with the phone left untouched I can't even get 1.0A charging with the stock charger and stock usb cable. As I have shown in my post before, I get a 0.8 to 0.9A charging, and yes, the screen is off. I have not touched my phone during this time at all. What can I conclude from that? Isn't the stock usb cable good enough?
Moreover, if this limit is set the by Z3 Kernel, it is possible to edit in the stock kernel, isn't it?
Regards.
Rizera said:
I find it interesting that you say this, because even with the phone left untouched I can't even get 1.0A charging with the stock charger and stock usb cable. As I have shown in my post before, I get a 0.8 to 0.9A charging, and yes, the screen is off. I have not touched my phone during this time at all. What can I conclude from that? Isn't the stock usb cable good enough?
Moreover, if this limit is set the by Z3 Kernel, it is possible to edit in the stock kernel, isn't it?
Regards.
Click to expand...
Click to collapse
In my case, I was using a Samsung tablet charger. These actually increase their voltage slightly under load to compensate for cable losses. I forget what Sony's stock charger is rated - but if you're only seeing 0.8-0.9A, then it might be on the weak side (just like the 2012 Nexus 7 had a weak charger). I pretty much exclusively use Anker multiport power supplies and either Monoprice or Anker heavy-gauge (24AWG for Monoprice, supposedly 21 for the Anker, lower is thicker/better here) cables.
A QC2.0 charger makes the cable selection FAR less important - transferring a given wattage requires less current at 9V than at 5V, which leads to less resistive losses in the cable. Same principle as why power grids use hundreds of kilovolts for long-haul transmission lines.
Yes the kernel could be altered, but since the battery is nonreplaceable, few responsible developers are going to do it. Heck, sony AOSP currently disables the HVDCP service due to paranoia about ensuring that ALL battery management protection mechanisms are in place before turning it on in AOSP. (I am fairly certain they ARE all there, but I want to do some more digging.)
HVDCP?what is that?so if the kernel is altered then quick charge 2.0 can be used?so now my z3 d6653 can only charge a maximum current of 1.5 A?
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danny the great said:
HVDCP?what is that?so if the kernel is altered then quick charge 2.0 can be used?so now my z3 d6653 can only charge a maximum current of 1.5 A?
Sent from my D6653 using XDA Free mobile app
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Click to collapse
HVDCP - High Voltage Dedicated Charging Port - I think Qualcomm is actually attempting to get QC2.0 standardized (they're already licensing it to non-QCOM OEMs - the Galaxy S6 supports it, as does NVidia's SHIELD Tablet, NV doesn't market the capability AT ALL but it's there!), so there are lots of references to naming conventions consistent with the USB Battery Charging Standard
DCP - Dedicated Charging Port (dumb wall charger)
SDP - Standard Downstream Port (PC port, limited to 500 mA)
CDP - Charging Downstream Port (PC port, allows for higher current) - Android device support for CDP detection is pretty rare, lots of kernel developers will risk damaging SDPs by simply forcing CDP behavior from an SDP
Even without kernel alterations, Quick Charge 2.0 is used - Quick Charge 2.0 is defined as delivering 9v or 12v from the wall to the device in order to deliver more power. It's up to the OEM whether to dump more of that into the battery, or simply to use it to allow for higher total system power. Without QC2.0, the Z3 can only charge at full rate in the absolute best of circumstances (screen turned off, even then it doesn't always reach 1.5A) - with QC2.0, the Z3 can charge at full speed even with the screen on.
Entropy512 said:
HVDCP - High Voltage Dedicated Charging Port - I think Qualcomm is actually attempting to get QC2.0 standardized (they're already licensing it to non-QCOM OEMs - the Galaxy S6 supports it, as does NVidia's SHIELD Tablet, NV doesn't market the capability AT ALL but it's there!), so there are lots of references to naming conventions consistent with the USB Battery Charging Standard
DCP - Dedicated Charging Port (dumb wall charger)
SDP - Standard Downstream Port (PC port, limited to 500 mA)
CDP - Charging Downstream Port (PC port, allows for higher current) - Android device support for CDP detection is pretty rare, lots of kernel developers will risk damaging SDPs by simply forcing CDP behavior from an SDP
Even without kernel alterations, Quick Charge 2.0 is used - Quick Charge 2.0 is defined as delivering 9v or 12v from the wall to the device in order to deliver more power. It's up to the OEM whether to dump more of that into the battery, or simply to use it to allow for higher total system power. Without QC2.0, the Z3 can only charge at full rate in the absolute best of circumstances (screen turned off, even then it doesn't always reach 1.5A) - with QC2.0, the Z3 can charge at full speed even with the screen on.
Click to expand...
Click to collapse
So that means I juz connect my z3 to a QC 2.0 compatible charger which is 9v and it can charge faster?i ask sony and they say quick charge is only supported in japanese version.if I connect to a QC 2.0 compatible charger,how fast will my z3 charge?
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danny the great said:
So that means I juz connect my z3 to a QC 2.0 compatible charger which is 9v and it can charge faster?i ask sony and they say quick charge is only supported in japanese version.if I connect to a QC 2.0 compatible charger,how fast will my z3 charge?
Sent from my D6653 using XDA Free mobile app
Click to expand...
Click to collapse
Yes, it will charge faster.
How much faster depends on what you're doing. If the device's screen is off and it's idle, only a little bit faster.
If you're running Google Maps Navigation in a car, the difference will be massive. As in "charging at a decent rate vs. discharging despite being connected to a power supply".
It will charge in around 130 minutes with QC2.0, and around 210 minutes with the stock charger (EP880).
At least that's how it works for me.
Rizera said:
It will charge in around 130 minutes with QC2.0, and around 210 minutes with the stock charger (EP880).
At least that's how it works for me.
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Click to collapse
Ok,i will go buy a QC 2.0 charger.thx
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Can I use tenergy wall charger that support quick charge 2.0?how fast will it charge?
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Hello,
The problem I have is that I can only charge my xperia with USB connection, but its painfully slow.
I lost my original charger and I tested both some custom bought charget which works fine with my Lumia 520, and also I tried raspberry pi official charger, and it just make no reaction at all
Why is that? Is there a fix, maybe by hotwiring some wires in the cable?
Thanks!
maybe the voltage of charger didn't compatible with your phone. try changing your ac adapter, or buy an original charger
Buy a third party charger less than five quid in the UK not worth risking your device
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