Database Develop

Can I use chargers from my previous phones?

I cannot use my droid 3 charger because im in Europe (different socket).
The droid 3 charger says 5.1V / 850 mA
Can I use my samsung charger 5.0V / 700 mA?
Thanks

You can use any microusb charger, if the current is lower the charging process is accordingly lower.
Currently I'm using a Palm Pre charger which can supply roughly 1A and charges the extended battery in about 2h

I know that the mA can be different, but I always thought that voltage needed to be the same? It doesn't matter that it's 5.0 rather than 5.1?

DoubleYouPee said:
I know that the mA can be different, but I always thought that voltage needed to be the same? It doesn't matter that it's 5.0 rather than 5.1?
Click to expand...
Click to collapse
It's usb, the voltage is 5V in any device .1 V means basically nothing

The Solutor said:
It's usb, the voltage is 5V in any device .1 V means basically nothing
Click to expand...
Click to collapse
Actually that .1 is the basis of all "rapid" chargers. It definitely makes a big difference. My I pad won't charge at all on 5, but it will accept any 5.1, including my d3 charger.
Sent from my DROID3 using XDA App

0.1 is pretty negligible, that shouldn't matter to charging. The car charger I use is Motorola branded and specifies an output range of 4.75 to 5.25 volts due to the noisier electrical environment in a car. I've never had any issues with it.

Izeltokatl said:
Actually that .1 is the basis of all "rapid" chargers. It definitely makes a big difference. My I pad won't charge at all on 5, but it will accept any 5.1, including my d3 charger.
Sent from my DROID3 using XDA App
Click to expand...
Click to collapse
Chargers that don't charge, are usually non standard ones (read the data + and data - pins aren't connected toghether.
In that condition some device charges, some slowly charges, some don't charges at all.
Depending in how strictly they follow the standard.

I'm curious to know why manufactures always tell you in the manual NOT to charge the device using another charger than the supplied one, but what's the point of having a microsub standard then? i'm hoping they mean cheap chargers, but i think our phones would be fine using chargers from big companies like htc, nokia, blackberry, i think my galaxy s ii would be fine using my motorola charger

Sent from my DROID3 using XDA App

I m usin a external socket attached to moto charger tried uploading the pic frm phone bt its givin me sme error il put up later in evening from pc..hope helps
Sent from my DROID3 using XDA App

,,
ok got access to pc heres the pic
and why wasnt i able to upload pics from mobile phone??said some system error 2...thx

Most of the time, I used the supplied charger (this is when I charge while sleeping, for example.) However, I have charged with other microUSB cables (i.e., my Kindle cable, a previously-owned Verizon car charger, and just a microUSB cable I found sitting in my collection of cables) and they have always charged fine for me.

I can't use any of my HTC chargers (Desire Z, Legend) or my car chargers. I also cannot use a USB cable extension, and the phone requires a USB driver to charge.

5 vs 5.1 is almost nothing the important thing is how much current mA you can supply 700 800 1000 2000
The ipad doesnt charge well with 1000mA or below but is happy with 2000mA
And an ipad charger charges my droid in less than an hour
SOURCE: ELECTRONIC ENGINEERING
Enviado desde mi DROID3 usando Tapatalk

gierso said:
5 vs 5.1 is almost nothing the important thing is how much current mA you can supply 700 800 1000 2000
The ipad doesnt charge well with 1000mA or below but is happy with 2000mA
And an ipad charger charges my droid in less than an hour
SOURCE: ELECTRONIC ENGINEERING
Enviado desde mi DROID3 usando Tapatalk
Click to expand...
Click to collapse
Yes.. but is there a limit to mA or could I connect a 4000mA charger (theoretically) and charge it in 20min?

DoubleYouPee said:
Yes.. but is there a limit to mA or could I connect a 4000mA charger (theoretically) and charge it in 20min?
Click to expand...
Click to collapse
Assuming a constant voltage (our case) the charging current depends on the load .
So, if the charge can supply a limited amount of current (eg. 500mA) the load can't draw more than that, but if the current available is more than the one required by the load (eg. 5000 A), doesen't matter, the load itself cant draw more than the nominal one.
Maybe that limit is not 1A but 1.1 or so, but definitely not more than that.

The Solutor said:
Assuming a constant voltage (our case) the charging current depends on the load .
So, if the charge can supply a limited amount of current (eg. 500mA) the load can't draw more than that, but if the current available is more than the one required by the load (eg. 5000 A), doesen't matter, the load itself cant draw more than the nominal one.
Maybe that limit is not 1A but 1.1 or so, but definitely not more than that.
Click to expand...
Click to collapse
Ye so the phone is pulling energy rather than the charger pushing it..?
If the limit would be 1.1 how would you explain the ipad charger charging in less than an hour?

Ye so the phone is pulling energy rather than the charger pushing it..?
Click to expand...
Click to collapse
Look the matter this way:
The charger pushes the current with a force (the voltage), and the phone allows the current to flow.
Look the matter as hydraulics: if you have a tap with a 5mm hole, and the water is at a definite pressure, there is no variation in the water flow changing the size of the pipe (assuming the pipe is decently sized).
What matters is the input pressure and the tap's hole.
If the limit would be 1.1 how would you explain the ipad charger charging in less than an hour?
Click to expand...
Click to collapse
I've never opened the american D3 charger so I've no clue on it's real performances.
BTW, in the real world, the Milesone 1 charger charges (roughly) at 900mA, the X2 one at 850mA, the Desire Z one at 1A.
Often the real performances of the chargers has little to do with the one written on the sticker...

I can charge my D3 with my LG micro usb cable, but I can't connect to my PC or macbook with it :-/

I use HTC 5V/1A,it is perfect

Is Note charger same as Galaxy S2 charger?

Hi,
Getting an EU version of the Note, so I need to buy a Uk charger, is the charger for the Note and Galaxy S2 compatible? Thinking buying a 3rd party Galaxy S2 charger on ebay.
Many thanks

I suspect any 5v microusb charger delivering over 0.5A will be fine.
Expansys sent me a standard HTC one (5v 1A) with my german note and I am in the UK.

Thanks, I have a couple of generic USB wall chargers at home, so might as will use them with the Note.

I can't answer the question directly, but that big screen, fast processor and larger battery are going to take a bit more juice than your average phone, including the S2. When it comes to mains chargers that may not be a big deal, unless you leave the phone active while charging, but might become an important consideration if trying to use the phone for satnav in the car, for example.
At the moment I'm using an Orange San Francisco. That has a 3.5" OLED screen and a 600MHz single core processor, so hardly an energy guzzler. The supplied charger is rated at .7A. In the car, when using satnav, my generic USB car charger cannot quite keep pace with the energy demands of that little phone and the battery level actually drops slowly while connected to power in the car. I'm definitely going to be looking for something more robust for the Note.

Note charger is 1 amp, Nexus S .7 amp, Note charges fine off the .7 amp charger.

I assume a standard Samsung GS charger would do, the output on it is 0.7A?

tdodd said:
When it comes to mains chargers that may not be a big deal, unless you leave the phone active while charging, but might become an important consideration if trying to use the phone for satnav in the car, for example.
Click to expand...
Click to collapse
Surprise, my car charger was not good enough for the S2 while using nav software, but the Note charges nicely.
Sent from my GT-N7000 using xda premium

So could I use my Samsung Galaxy S charger with my note (that I will order soon) or shall I purchase this
http://www.amazon.co.uk/Adapter-Cha...KQU2/ref=sr_1_1?ie=UTF8&qid=1320872764&sr=8-1
... the above is 1000mA... is that enough?
Or should I just purchase a Euro/Worldwide adapter to UK plug?
http://www.amazon.co.uk/Travel-Adap.../dp/B000P0FIUM/ref=dp_cp_ob_computers_title_0

Gede said:
Surprise, my car charger was not good enough for the S2 while using nav software, but the Note charges nicely.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
You not only need a charger that can deliver more oomph, but also a lead or charger, possibly modified, that will allow the phone to draw that current. I have 1A USB chargers for the car but a regular data/charging lead only permits the phone to charge at the standard USB maximum current of 0.5A. I had to open up one of my chargers and solder the two centre pins together. Shorting those two pins signals to the phone that it can draw the full "mains" current rather than the 0.5A USB maximum.
I haven't yet charged the Note in the car, but on my previous phone the charging status would show "Charging (USB)" prior to the mod and once modded it would show "charging (AC)", which is what you need to keep the phone charged and charging while in use rather than slowly depleting.

jUsT2eXy said:
So could I use my Samsung Galaxy S charger with my note (that I will order soon) or shall I purchase this
http://www.amazon.co.uk/Adapter-Cha...KQU2/ref=sr_1_1?ie=UTF8&qid=1320872764&sr=8-1
... the above is 1000mA... is that enough?
Click to expand...
Click to collapse
Same inquiry as me. Thanks for those links by the way.

I have used the 2 amp charger of my galaxy tab 10.1.
I have the impression this charges my note noticably fatster.

Super Chimp said:
Same inquiry as me. Thanks for those links by the way.
Click to expand...
Click to collapse
1 amp is good..same as the GS2, i believe... so , yes- the GS2 charger should work on the Note

Kibosh3 said:
1 amp is good..same as the GS2, i believe... so , yes- the GS2 charger should work on the Note
Click to expand...
Click to collapse
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.

adapter
Would it work to get an adapter from the European plug that comes with the note to US outlet?

Super Chimp said:
Same inquiry as me. Thanks for those links by the way.
Click to expand...
Click to collapse
Thing is would the USB cable that comes with the note (designed for computers) be suitable in carrying 1000mAh?
I heard that USB cables that come with phones are 0.5mAh so it won't make use of the 1000mAh...
Can anyone confirm this? If so then it's better to buy an out and out 1000mAh plus wall charger or a worldwide travel adapter.
---------- Post added at 12:53 AM ---------- Previous post was at 12:51 AM ----------
dennishhh said:
Would it work to get an adapter from the European plug that comes with the note to US outlet?
Click to expand...
Click to collapse
That's also what I want to know.
There is no reason why it wouldn't work. It's just like going on holiday... US plugs to Euro/UK etc
So that's the route I will end up taking. But I may purchase an out and out 1000mAh wall plug anyway... even a 2000mAh...

jUsT2eXy said:
Thing is would the USB cable that comes with the note (designed for computers) be suitable in carrying 1000mAh?
I heard that USB cables that come with phones are 0.5mAh so it won't make use of the 1000mAh...
Can anyone confirm this? If so then it's better to buy an out and out 1000mAh plus wall charger or a worldwide travel adapter.
Click to expand...
Click to collapse
I am 20000000% sure it can such a low current.
( Just think , would samsung bundle a cable that does not support the charger )

drgopoos said:
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.
Click to expand...
Click to collapse
strange... my SGS2 came with a 1 amp ... i'm not complaining

drgopoos said:
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.
Click to expand...
Click to collapse
Sounds like it might be worth getting an EU to UK plug adaptor then.

dennishhh said:
Would it work to get an adapter from the European plug that comes with the note to US outlet?
Click to expand...
Click to collapse
yes it will work fine, because the charger accepts 100-220vac 50/60Hz

The Samsung power adaptor that comes with the Note is a Universal one (110 Volts - 240 Volts) and is rated at 5 Volts 1 Amp output.
If you need an alternative for some reason (or a spare).........
Personally, I am using a generic iPad mains adaptor with dual USB sockets. The device was made in China and has a total current output of up to 2 Amps. It is a also a worldwide model. I think it charges faster than the Samsung charger.
It also charges the Note when using the MHL>HDMI output. I have read some postings that the Note very slowly loses charge when the MHL>HDMI adaptor (which has to be externally powered) is in use. With this 2A adaptor, it continues to charge.
You could also try the Genuine iPad adaptor that also works worldwide and delivers a genuine 1 Amp rather than some of the cheapie models that struggle to supply that current.

Car chargers, please recommend !

I'm going on a looooong trip next week, and will be away from home for about two weeks... Most of the driving will be of about 6 hours between hotel stops or whatever, and unless I'll be sleepy, I'll surely abuse my Note, haha. Will reach a hotel where I'll stay for 10 days, but the rest of the time will be wasted on the road...
So... a car charger is needed .
What would you guys recommend? In terms of brand, first... because I know some manufacturers write 1A on them, when they give not even half...
I've seen MOMAX chargers that give 1A @ 5V x 2 (had two USB outs) at about 15 bucks, for example.
I've also seen an orange-branded charger at 5 EUR (but it was almost double in lenght than the MOMAX one), with an included microUSB cable, that outputs 2A or 2.1A @ 5V. Would THAT one be safe to use? Or any charger that outputs >1.5A, for example...?
Also, will the phone charge faster if using a charger that gives 2A? I know it won't draw 1900mA out of it, lol, but still...

Formhault said:
What would you guys recommend? In terms of brand, first... because I know some manufacturers write 1A on them, when they give not even half...
Click to expand...
Click to collapse
Formhault, last week I have purchased for my Note a Samsung car holder with 1A charger from this shop in Bucharest: http://www.alliselectronics.ro/inca...-ecsk1e1-pentru-galaxy-note-incarcatoare-auto
Unfortunately I did not test it yet on the car on a long drive and with the Note running empty; also due to the small form of the microusb plug I cannot perform any electric measurement.
I can confirm that measuring other car chargers of 0.5A and 0.7A I have found out that the o/p voltage is dropping a lot during the charging process, thus explaining the resulting low current and long charging time.
At he same shop you also can find a stand alone Samsung car charger, also of 1A at http://www.alliselectronics.ro/incarcatoare/auto/incarcator-auto-samsung-ecau16c-accesorii-tablete
Formhault said:
I've also seen an orange-branded charger at 5 EUR (but it was almost double in lenght than the MOMAX one), with an included microUSB cable, that outputs 2A or 2.1A @ 5V. Would THAT one be safe to use? Or any charger that outputs >1.5A, for example...?
Also, will the phone charge faster if using a charger that gives 2A? I know it won't draw 1900mA out of it, lol, but still...
Click to expand...
Click to collapse
The output current capability of a charger has nothing to do with how much curent the phone will draw while charging (of course the maximum rating of the charger must not be exceeded), on the condition that the 5V output voltage is not going too high at the lowest current consumption (when the battery is almost full).
Good luck in finding the suitable charger for your needs!

Mobile Inverter is the solution.
Formhault said:
I'm going on a looooong trip next week, and will be away from home for about two weeks... Most of the driving will be of about 6 hours between hotel stops or whatever, and unless I'll be sleepy, I'll surely abuse my Note, haha. Will reach a hotel where I'll stay for 10 days, but the rest of the time will be wasted on the road...
So... a car charger is needed .
Click to expand...
Click to collapse
Try a mobile inverter and use your prefered wall charger. in 400W range you can charger all your devices. Try here:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias=lawngarden&field-keywords=Mobile+Inverter
I use a chinese one here, one with two outlets and 2 usbs 1A each. It's big but it's the perfect solution. Otherwise i have a powerjolt from griffin ,5A for the phone during car navigation. http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q It's really small and stealth.
Cya.
Tech

axelTP2 said:
Formhault, last week I have purchased for my Note a Samsung car holder with 1A charger from this shop in Bucharest: http://www.alliselectronics.ro/inca...-ecsk1e1-pentru-galaxy-note-incarcatoare-auto
Unfortunately I did not test it yet on the car on a long drive and with the Note running empty; also due to the small form of the microusb plug I cannot perform any electric measurement.
I can confirm that measuring other car chargers of 0.5A and 0.7A I have found out that the o/p voltage is dropping a lot during the charging process, thus explaining the resulting low current and long charging time.
At he same shop you also can find a stand alone Samsung car charger, also of 1A at http://www.alliselectronics.ro/incarcatoare/auto/incarcator-auto-samsung-ecau16c-accesorii-tablete
Click to expand...
Click to collapse
Erm... the first one looks expensive. I don't need a holder. No-go.
The second one is expensive, too, but I think I'd rather pay that money for THAT instead of the Momax one. GOSH, they don't state the lenght of the cable. Any idea how long that is?
axelTP2 said:
The output current capability of a charger has nothing to do with how much curent the phone will draw while charging (of course the maximum rating of the charger must not be exceeded), on the condition that the 5V output voltage is not going too high at the lowest current consumption (when the battery is almost full).
Good luck in finding the suitable charger for your needs!
Click to expand...
Click to collapse
Yeah... I kind of noticed that. The Note draws even 1200mA at times, and I tried with the original charger and a HTC wall brick charger (both giving 1A @ 5V). So yeah... guess the phone can draw more than the charger can provide, if that makes sense, lol.
So you're saying that even a 700mA @ 5V charger can give 1A to the phone? Or I got it all wrong?

TekNiTe said:
Try a mobile inverter and use your prefered wall charger. in 400W range you can charger all your devices. Try here:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias=lawngarden&field-keywords=Mobile+Inverter
Click to expand...
Click to collapse
WHAT?! LOL!
That makes me think... why not use a car battery rectifier and give it 50 amps to eat . Sorry, but that's the first thing that popped in my head when I heard "inverter".
Still not sure what that thing is, so let's proceed to the second part.
TekNiTe said:
I use a chinese one here, one with two outlets and 2 usbs 1A each. It's big but it's the perfect solution. Otherwise i have a powerjolt from griffin ,5A for the phone during car navigation. http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q It's really small and stealth.
Click to expand...
Click to collapse
Heard Griffin are good!
You mean that Griffin Powerjolt (which is stated to give 1A) outputs 5 AMPS TO YOUR PHONE?!?!?!
Although that thing is cheap on Amazon... it's about 20 EUR here, in Romania . At least that's the smallest price I can find for it... so, not sure I'll go for that one .

Formhault said:
The Note draws even 1200mA at times, and I tried with the original charger and a HTC wall brick charger (both giving 1A @ 5V).
Click to expand...
Click to collapse
How did you measure that 1.2A charging current, please?
Formhault said:
So you're saying that even a 700mA @ 5V charger can give 1A to the phone? Or I got it all wrong?
Click to expand...
Click to collapse
No, I did not say that, on the contrary.
Here are some measured values:
0.7A car charger:
Open circuit voltage (disconnected phone):5.34V
Voltage under charging: 4.52V
Charging current: 0.6A measured on a resistor load
0.5A car charger:
Open circuit voltage (disconnected phone):5.31V
Voltage under charging: 3.16V
Charging current: 0.42A measured on a resistor load
Both chargers are doing the job, but very, very slow (2 to 3 hours from empty to full battery charge) and IF not many services are running on the phone.
Hope that helps......

axelTP2 said:
How did you measure that 1.2A charging current, please?
Click to expand...
Click to collapse
Battery Monitor Widget - set the logging to every 60 seconds.
I attached the .txt logs to this post. Each log was done during charging, with Wi-Fi, Data and GPS off. Alarms were set to go off sometime in the morning (7 AM or 8, whatever), it is visible in the logs.
Even 2 and 1.6 amps were drawn at some point .
I used two chargers, because I wanted to see whether the HTC one can charge faster... if it can give more than 1A more often. It seems not, so I won't spend 10 bucks on a HTC one; will stick to the provided Samsung charger.
axelTP2 said:
No, I did not say that, on the contrary.
Here are some measured values:
0.7A car charger:
Open circuit voltage (disconnected phone):5.34V
Voltage under charging: 4.52V
Charging current: 0.6A measured on a resistor load
0.5A car charger:
Open circuit voltage (disconnected phone):5.31V
Voltage under charging: 3.16V
Charging current: 0.42A measured on a resistor load
Both chargers are doing the job, but very, very slow (2 to 3 hours from empty to full battery charge) and IF not many services are running on the phone.
Hope that helps......
Click to expand...
Click to collapse
It is said that charging at lower currents/voltages is healthier for the battery. But no thank you... I'll buy a car charger that gives 1A, lol. Still haven't decided which one I'll go for, but anyway...
Thank you

Using different chargers question please

I have numerous chargers at home all of which have charged my evo, gs2, Nexus 7, etc.
Can these be used interchangeable in the Note 2 without harming the charging process?
Thanks

As long as the Voltage is the same (5V) there is no Problem. But you should have a charger at 2 Amper for optimal charging speed.

I just tried charging mine with the normal microUSB charger I use for every other phone I have had and it took 7.5 hours to charge from 5%-62%. I used the stock charger that was in the box and it charged it in 3.5-4 hours no problem. Seems like the charger in the box charges faster.

reading this thread made me curious, my NOTE II should arrive in about a week, I can't tell for myself yet, what is the A (amps) specification mentioned on the original charger?
as i come from HTC, my current chargers go up to 1 A current. witch is the double A a standard USB port will give unless crossover'd .
thanks in advance!
----
in the wiki thread i found the answer, the supplied charger delivers 5 V 2 A output to the device.

WendigoNL said:
what is the A (amps) specification mentioned on the original charger?
Click to expand...
Click to collapse
2A! Same as the Tab 10.1 charger.
Filling a 3100mAh battery requires some grunt.

i think even the usb cable makes a difference..
when i use the stock usb cable with the stock charger ..my s3 would charge up comparatively faster than with the other usb cable connected to the same stock charger.:rolleyes

max.android said:
i think even the usb cable makes a difference..
Click to expand...
Click to collapse
It certainly does! :good:
All electrical cables have some resistance. Very low (but not zero) for quality cables, sometimes quite noticeable for thin and cheap offerings.
From Ohm's Law we know that voltage drop will be proportional to current. A cable with a resistance of just half an ohm will loose about 0.5% at 50mA. That's pretty much nothing. However, at 2000mA the loss reaches 20%.

dude use any charger, just don't use LG charger **** !!!!!

You must use the 5volt 2amp charger and cable provided or a replacement with the same output or youll either be waiting for ever for it to charge or do some damage.
I tryed using my note 1 charger rated at 1amp and guess what? It took about twice as long to charge.
Sent from my GT-N7100 using xda app-developers app

Some of my old 1 Amp chargers aren't happy at all, and will often decide to stop charging randomly.
I though it was something weird with my phone, but after switching chargers it never happened again.
- Frank

USA official charger
This are the images of the official USA charger that will comes when they release the device in USA
And yes its a 2.0A charger, so the SIII charger isn't appropriate for NoteII.
this is the kind of charger used in Canada, USA, and Latin America, i bought this NoteII in Mexico from an authorized Samsung provider, of course factory unlocked 710usd, like 10,900mxn.

Has anyone tried a 3A charger? Just wondering if this would speed up charging even more than the standard 2A charger.

mcdill the pig said:
Has anyone tried a 3A charger? Just wondering if this would speed up charging even more than the standard 2A charger.
Click to expand...
Click to collapse
No, it won't speed it up. It's what the device takes from a charger, and not what a charger can potentially supply. If the device's charging circuit is spec'd for up to 2A current, that's what it will suck out of a charger, not more. You can connect a 30A lab power supply, and it will still be the same 2A (or less) input. To speed up the charging process, you need to mod the charging circuit of the device itself.

Fast(er) AC Charger Recommendations

Greetings! I was wondering what is the maximum rated input current of the Xperia Z. There's no indication of it's rated input current anywhere on the phone. The supplied charger is rated at 1.5A and I was wondering if a higher amperage charger above 5V 1.5A (such as of those catered to tablets/ipad) would charge the battery at a faster rate before investing in one.
Anyone with any experience using a higher amperage charger on the Z could advice on any notable improvements in charging time as well.
Thanks!

Used a Nexus 7 charger rated at 2A and it charged fine with no detrimental effects. Charging time is about 1.5, hours from 10% to full.
------------------------------------------
Sony Xperia Z C6603 Purple | RomAur 1.1

cliffordlee said:
Greetings! I was wondering what is the maximum rated input current of the Xperia Z. There's no indication of it's rated input current anywhere on the phone. The supplied charger is rated at 1.5A and I was wondering if a higher amperage charger above 5V 1.5A (such as of those catered to tablets/ipad) would charge the battery at a faster rate before investing in one.
Anyone with any experience using a higher amperage charger on the Z could advice on any notable improvements in charging time as well.
Thanks!
Click to expand...
Click to collapse
While increasing the Amps will result into fast charging... the bad part is that it kills your battery life overall.

I've tried Sony charger rated output 1500mA
and Galaxy tab charger 2A
phone on, screen off
in 10 minutes charge, both added , just the same, 10% juice.
may try it longer next time.

Dsteppa said:
While increasing the Amps will result into fast charging... the bad part is that it kills your battery life overall.
Click to expand...
Click to collapse
Would you care to explain?

Great findings! I guess it's safe to say that there is no notable reduction in charging times even with the provision of higher amperage chargers, and that the Xperia Z's power management IC can only take in 1500mA at max.
moraal said:
Would you care to explain?
Click to expand...
Click to collapse
Charging at higher amperage would generate more heat and this increase in heat would degrade the battery cells at an increased rate, thus reducing the lifetime of the battery in the long run
Well unless you value your charging time (or loss of usable time) more than the cost of premature replacement of battery, then quick charging is for you. Personally, given a choice, I'd rather not charge at a higher current unless necessary, especially when time is the essence. (;

moraal said:
Would you care to explain?
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I will post when I find the correct link.

Erm I'm fairly sure that whatever amp you use the phone will only draw a set amount I used a 2500mah charger with my old phone for two years no difference in charging time nor degraded battery life or iverheating , just meant I had one charger for everything lol

That's correct, it's impossible to over-charge or charge too quickly a device by using a charger with a higher current rating than the original charger. Current flow is a RESULTING property of a particular voltage applied across a particular resistance. Applying too much voltage will usually be detrimental, but you cannot SUPPLY too much current. The device will draw as much as it needs unless it is limited by the charger's maximum current rating first.
I've been using an old Blackberry charger rated at much less than 1000mA. It might take a bit longer to charge, but I love the long, supple lead that comes with it.
SF

current
Can someone explain me this...
My Xperia Z came with (1) Power plug-adapter with USB port + (2) USB to Micro-USB cable + (3) Docking station.
The (1) has Output = 1500 mA written on it, the (3) has 1800 mA on it.
Questions:
Can the USB cable transfer more than 500 mA? From reading USB page on Wiki, looks like it can do 1500 mA - 5000 mA when not transferring data so I should not worry about the cable?
What is the point of including a 1800 mA docking station + 1500 mA power plug? Does the station only charge at 1500 mA when connected with that plug or am I missing something?
Thanks, sorry for noob questions

Sushifiend said:
That's correct, it's impossible to over-charge or charge too quickly a device by using a charger with a higher current rating than the original charger. Current flow is a RESULTING property of a particular voltage applied across a particular resistance. Applying too much voltage will usually be detrimental, but you cannot SUPPLY too much current. The device will draw as much as it needs unless it is limited by the charger's maximum current rating first.
I've been using an old Blackberry charger rated at much less than 1000mA. It might take a bit longer to charge, but I love the long, supple lead that comes with it.
SF
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Click to collapse
The charging chip it self support higher current by default, but the manufacturer chooses the charger depending on different factors, design of the phone, capacity of the battery and also their stock chargers available... they will choose the best charger to match... in most cases it will be rated lower than what the charging chip is capable of...
the charging chip has it's limits also... using regular USB cables will only provides the standard current... I've used same amperage chargers as the orignal but with different cable and charging was slower... when I switched to the original cable charging was faster and had the same time as original charger ( same amperage )
When you use the original cable and higher current charger then you will have faster charging...
My Xperia arc came with socket charger rated at 950mA and a car charger rated at 1200mA... and the car charger is really faster but only when I use the original cable, when I used a longer cheap cable the charging was actually slower... even when I'm charging non-Sony devices ( like my Note 2 ) when I use original cable ( wether Samsung or Sony one ) charging is always faster... I don't know why it might be a way to protect the standard usb cable from over-current as the standard USB current is 500mA, so the charger will normally send the usual current unless the device requested higher current then it will negotiate with the charger to send higher current the original cables might have something like impedance between some pins so the phone will detect them as original then they will negotiate the charger to send higher current or the charger might actually use the other pins to send higher current but the phone will only use these pins when it detect the original cable... if not then it will not use these pins and will have regular 500mA charging... I've always faced this when dealing with other cables... now when I want longer cable I just use USB extension cable with the original cable and it will work !

wlkatz said:
Can someone explain me this...
My Xperia Z came with (1) Power plug-adapter with USB port + (2) USB to Micro-USB cable + (3) Docking station.
Click to expand...
Click to collapse
As you've got the docking station can you tell us how it's wired?
Which pin is + and which is -
Cheers
Sent from my C6603 using Tapatalk 2

Thanks for all the replies, really informative.

fards said:
As you've got the docking station can you tell us how it's wired?
Which pin is + and which is -
Cheers
Click to expand...
Click to collapse
Looking at the dock station from the front, + is on the left, - is on the right.
See pic + bonus
Also will be grateful if someone could answer my questions on 1st page.

wlkatz said:
Can someone explain me this...
My Xperia Z came with (1) Power plug-adapter with USB port + (2) USB to Micro-USB cable + (3) Docking station.
The (1) has Output = 1500 mA written on it, the (3) has 1800 mA on it.
Questions:
Can the USB cable transfer more than 500 mA? From reading USB page on Wiki, looks like it can do 1500 mA - 5000 mA when not transferring data so I should not worry about the cable?
What is the point of including a 1800 mA docking station + 1500 mA power plug? Does the station only charge at 1500 mA when connected with that plug or am I missing something?
Thanks, sorry for noob questions
Click to expand...
Click to collapse
- Yes, the cable can easily transfer more than 500mah. No worries.
- It means the docking station is rated for a maximum of 1800mah - so if you buy a 2100mah charger, the docking station may get warm and if it fails Sony won't cover it under warranty. If you use the 1500mah power plug, then the docking station supplies the 1500mah - it's just a pass-through. The docking station itself doesn't really have additional circuitry.

wlkatz said:
Looking at the dock station from the front, + is on the left, - is on the right.
Also will be grateful if someone could answer my questions on 1st page.
Click to expand...
Click to collapse
Prefect thanks!
Can now make some docks/charging clips using sugru and a usb cable
Not sure why the dock would be rated at 1800, unless they've fitted it with some circuitry, a simple micro usb to prongs would do.
I charge mine using the adapter that came with my note tablet which is 2a and also with the 2a output of an external battery pack.
Sent from my C6603 using Tapatalk 2

fards said:
Prefect thanks!
Can now make some docks/charging clips using sugru and a usb cable
Not sure why the dock would be rated at 1800, unless they've fitted it with some circuitry, a simple micro usb to prongs would do.
I charge mine using the adapter that came with my note tablet which is 2a and also with the 2a output of an external battery pack.
Sent from my C6603 using Tapatalk 2
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Click to collapse
Yes, they're right to write the 1.8A there.
because, not all microUSB survive to deliver more than an amps. They maybe melt. especially the cheap one that have very small and loose contact area.
the pogo pins too... Not so easy deliver 1.8A with pogo pins...
that's why intel processor, have 1000+ pins, but almost 300pins are for power supply only (GND and VCC). Although the chip is only 1.25volts, but the current sometimes about a hundred amps (Core 2 Extreme, Core i7)

Rashkae said:
- Yes, the cable can easily transfer more than 500mah. No worries.
- It means the docking station is rated for a maximum of 1800mah - so if you buy a 2100mah charger, the docking station may get warm and if it fails Sony won't cover it under warranty. If you use the 1500mah power plug, then the docking station supplies the 1500mah - it's just a pass-through. The docking station itself doesn't really have additional circuitry.
Click to expand...
Click to collapse
Wrong. If you connect a 2.1A supply, you'll see no difference.
Charging rate is set by the phone, as long as the power supply feeding it doesn't "brown out" under the load.
2.1A, 3.1A - doesn't matter, the phone will draw less (I'll need to drain my battery down a bit to determine how much less, it's often less than whatever the wall charger is rated.)
There is a possibility that when it sees voltage on the pogo pin connectors, it increases charge current to a different value than on AC via the USB port. The ext charger handling in the pm8921 driver is really convoluted and difficult to read.