Related
I've bought this X1 car windscreen holder & charger off ebay...
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200317246131
The holder itself is very good for the price, but I'm a bit nervous about using the charger as it's not genuine SE.
It is CE marked, but it says its output is 5.0V=2A, whereas the output of my SE wall charger is 5.0V=700mA.
Is it safe to use?
you should be good. its the voltage rating that is important and not the so much as the amps.
i wish i can give you the technical as to why right now but i just cant remember all the details. i think your phone can draw in or pull in its rated amps. if your phone charger that you bought is rated at 2 amps, your phone can only draw in its max rated amps (700ma) and your charge time will be lower than that of a charger rated at 5 volts, 500ma.
if you did have a charger that was rated at 5 volts, 500ma, then your phone can draw in only the max that the charger can put out and will tend to overwork the charger thats rated lower and have a longer charge time.
Thanks for your reply
So even though the charger can supply up to 2A, the phone will only take the 700mA it needs?
Just out of curiosity, can anyone with a genuine SE car charger tell me what output it supplies?
BUT, charging that fast isn't the best thing to do for your batterly lifetime. Slower charging == longer battery life.
Though, same goes for the normal wall socket charger from SE.
Legaspi is right, the phone will only pull as many amps as it needs and can take, no more.
Well, I'll only be using it occasionally when I'm at a few car shows over summer. So it should be safe enough.
Cheers guys
amps are not pushed but drawn
amps is the max the charger can provide
before it get pressured and lover the volts
you could use a 5volt 10000MegaAmp charger
and the device would only draw the amps the device
was made to draw all the rest of the amps would stay
at your electricity company
ohms law state Amps == volts / residence
Rudegar said:
amps are not pushed but drawn
ohms law state Amps == volts / residence
Click to expand...
Click to collapse
In other English:
P = VI, where
P = Power of device (watts) and is fixed
V = Voltage used by device (volts) and is fixed
I = Current (amps) and is decided by P/V (a fixed ratio)
So the device cannot draw more current than the fixed ratio. It may draw less current if the charger cannot supply the highest amount, but then as in one of the above posts, it simply takes longer to recharge.
With these devices, milliWatts/miliAmps are the scale, 5V is generally the fixed Potential Difference.
Used in a vehicle, the device is generally both drawing and expending energy (ie. charging and running say, GPS) simultaneously. This in/out situation when prolonged is the cause of the observed overheating with the original X1 battery.
i use a HTC car charger with my SEX1, it works flawlessly
I handmade two 12->5V converters (first with LM7805, second - with LM2678 regulator).
Both are OK, but I'm thinking about two stage regulation with radiators (LM7809/7805) or 5W DC2DC converter now...
Cheap car $5 5V USB converters usually use LM7805 without any radiators. So 500mA+ are hardly achievable.
hello , i just bought an genuine htc car charger for my xperia with the following carac : 5V - 2A
so don't worry , it's normal to have a more powerfull charger because when you will use X1 like GPS, he will need more power than a simple charge
Hi guys,
first of all, thank you for the great forum, with lots of useful information and application for my xperia.
I would kindly ask someone with an original car charger (CLA-70) to post its specifications here (volts, amps output).
I have a car (usb) charger from a BT GPS device that has a 5V,1000 mA output and I am not sure if it will suit my xperia. I need the car charger for use of navigation software, which consumes a lot of battery power.
Thank you for any replay!
i believe it's safe to use. I have a handmade 12-to-5V converter with 3000mA possible output and for over two months have no problems with X1i.
But Xperia will not use all your 1000mA. About a half or so at maximum. No 15 minutes charge possible...
I have done in many times. It is safe.
Don't worry!
I use the Kensington 4-in-1 car charger for iPod.
http://us.kensington.com/html/11205.html
Ratings are 5V and 500mA. It manages to charge my iPod, my X1, and my Plantronics Voyager 510 Bluetooth headset. Same charger, three cables, one Case Logic pocket, and everything becomes under your control!
ianl8888 said:
In other English:
P = VI, where
P = Power of device (watts) and is fixed
V = Voltage used by device (volts) and is fixed
I = Current (amps) and is decided by P/V (a fixed ratio)
So the device cannot draw more current than the fixed ratio. It may draw less current if the charger cannot supply the highest amount, but then as in one of the above posts, it simply takes longer to recharge.
With these devices, milliWatts/miliAmps are the scale, 5V is generally the fixed Potential Difference.
Used in a vehicle, the device is generally both drawing and expending energy (ie. charging and running say, GPS) simultaneously. This in/out situation when prolonged is the cause of the observed overheating with the original X1 battery.
Click to expand...
Click to collapse
No, no, no! Voltage is not fixed.
This is a variable controlled by the source. If you connect a device to a 3V battery, it is different from when you connect it to a 12V battery, yes? Your flashlight or torch battery will not start your car. But your car battery can and will burn your torch bulb. Therefore, it is important to always connect a battery, or in this case a charger, of the specified voltage, otherwise you will fry your phone.
P=V * I.
The higher the voltage, the higher the power.
For example: Your American 110V TV will not work in Europe, where the voltage is 220V. It will fry!
Imdking said:
No, no, no! Voltage is not fixed.
....
For example: Your American 110V TV will not work in Europe, where the voltage is 220V. It will fry!
Click to expand...
Click to collapse
Depends on many things. FOA it depends on the type of PSU used in your TV.
Same correct for car converters. Be aware that during average driving your supposed to be 12V are really above 13V. May be even 14.5V.
What I'd not recommend is to buy cheap chinese converters based on 7805 chip. You cannot make it small, the radiator must be a half the size of Xperia itself. No radiator means a sub-100mA current at best.
Better to use something based on LM2678 chip.
sms2000 said:
Depends on many things. FOA it depends on the type of PSU used in your TV.
Same correct for car converters. Be aware that during average driving your supposed to be 12V are really above 13V. May be even 14.5V.
What I'd not recommend is to buy cheap chinese converters based on 7805 chip. You cannot make it small, the radiator must be a half the size of Xperia itself. No radiator means a sub-100mA current at best.
Better to use something based on LM2678 chip.
Click to expand...
Click to collapse
Of course there are sophisticated appliances that allow for different voltage sources. I, for example, buy household appliances that are "multi-national". Like many international students that go to school overseas and take TV's and Hi-Fi's back to their home countries after completing studies. These have power supplies that that can be set to 110v or 220v. Now with techonology advancement, some gadgets will auto detect and automatically switch transformers as needed. The regular TV designed for use in America at 110v will not work in Botswana.
But the principle still stands.
P = V * I.
The higher the voltage, the higher the power! So what when I open the control panel and measure the voltage on a dc power supply it shows 23v instead of the specified 24. No big deal. But if it shows 48v instead of 24, then we've got a problem. The car battery is actually 14.4v. That is not the point!
Do not use a higher voltage source than specified. That some appliances are designed to take fluctuations and slight variances goes without saying. But all within reason. So, if your camera says use a 3v battery, don't use a 9v battery because sms2000 said it "depends".
I have experience with micro amps and other electrical devices.. I have two chargers a generic 5V 1A and a Motorola 5V 550mA. I just bought a desktop charger. The input is 5.2 600 mA and the output is 4.2 250mA. I use to have a batter application for my xperia and it would read 3.9V on the battery. will my chargers work ok. I am thinking to use the 1A charger on the phone and the 550mA on the desktop charger.
I should have read this before but the other day i got from a street seller a car charger, having seen him selling both 1000 and 450 mamp chargers, i got that 450, becuase i knew my phone charger was 700 mamp, i only need it when i use the phone as gps, not always.... but i didn't try it yet ... thanks
science
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?
Click to expand...
Click to collapse
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
Click to expand...
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
Click to expand...
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.
Hello guys,
I lost yesterday my charger, and i can't find any charger seller.
I am not going to import a new charger yet, in the meanwhile a friend who has a moto x too told me that the Moto X has a power of
5v and 1150 mAh
Charging with original cable to a PC via usb is too slow
i have an Alcatel (5V - 400mA)
PS Vita Charger ( 5V - 1500 mA)
I tried to investigate by my own, but the more i learn i get more confused..
Which one should i use to charge my Moto X?
Alcatel or Vita?
Thanks in advance
fellhound said:
Hello guys,
I lost yesterday my charger, and i can't find any charger seller.
I am not going to import a new charger yet, in the meanwhile a friend who has a moto x too told me that the Moto X has a power of
5v and 1150 mAh
Charging with original cable to a PC via usb is too slow
i have an Alcatel (5V - 400mA)
PS Vita Charger ( 5V - 1500 mA)
I tried to investigate by my own, but the more i learn i get more confused..
Which one should i use to charge my Moto X?
Alcatel or Vita?
Thanks in advance
Click to expand...
Click to collapse
http://www.motorola.com/us/accessories-batteries-chargers/Duo-Rapid-Charger/duo-rapid-charger.html
rman18 said:
http://www.motorola.com/us/accessories-batteries-chargers/Duo-Rapid-Charger/duo-rapid-charger.html
Click to expand...
Click to collapse
They don't even export to South America, i will end paying $100 bucks if i use a miami pobox, il wait until motorola local store brings original chargers.
Thanks but as i said, i can't buy/import a new charger at this moment only have:
- Alcatel charger (5V - 400mA with it's own microusb cable)
- PS Vita Charger ( 5V - 1500 mA with the original cable)
Yet i am afraid to damage my cellphone or it's battery.
=(
fellhound said:
...I am not going to import a new charger yet, in the meanwhile a friend who has a moto x too told me that the Moto X has a power of
5v and 1150 mAh
Charging with original cable to a PC via usb is too slow
i have an Alcatel (5V - 400mA)
PS Vita Charger ( 5V - 1500 mA)
Click to expand...
Click to collapse
A USB/USB2.0 port will output 5V 500mA (and in some cases 550mA).
The less current the charger outputs, the slower it will charge the phone, which is why charging via cable to USB port on PC is so slow. If the phone really needs 1000 or 1150mA to charge, then using a 500-500mA charger might not even be able to maintain the current battery level.
In most cases, the output rating on the charger is the voltage (V) and max current (mA) the adapter can supply.
While you must match the Voltage and do NOT exceed the rated Voltage of the original charger, usually it is acceptable to use a higher current charger as the phones will draw as much current as they need without exceeding the max output of the charger.
I charged phones and headsets that shipped with 550mA chargers using 750, 850 and even 1000mA chargers just fine. And I use a 1000mA(1A) and 850mA chargers to charge my X at the moment.
So you should be able to charge via the PS Vita charger.
as long as the charger can supply enough amps it will charge the phone fine or at a slower rate.
amps are like the flowrate of a pipe. if you have a charger with a lower amp rating than the phone can take in, it will just atke in less. if your charger is more than the max, the phone will just take the max it can and there will be no harm.
if you watn to be sure a charger can charge your phone at its top speed just buy one for an ipad or a tablet as they are usuall over 1AMP and up to 2AMP.
i dont think the moto x even draws the full 1150ma, just the charger itcomes with has 2 USB ports so its a heavier duty phone charger
I'm using a galaxy s4 2amp charger and it works wonderfully. Fastest OEM amperage and a nice long USB cable.
Sent from my XT1058 using Tapatalk 4
Hello,
I have the following charger in my car. Can I use it to charge my Nexus6 ?
It has 10 Watts per port, 2 X 2.1A, 5V (voltage not sure).
http://www.belkin.com/my/IWCatProductPage.process?Product_Id=652450
Please suggest.
Thanks.
Why do you think you couldn't use it?
Sent from my Nexus 6
imnuts said:
Why do you think you couldn't use it?
Sent from my Nexus 6
Click to expand...
Click to collapse
I thought of checking with you, if the output of that belkin (current, voltage etc.) matches with the Nexus6. I understand that the phone will draw only the current that it needs (1.6A) from the charger. But not sure about the Voltage. It doesn't show the voltage in the specs also. So is the Nexus6 support all ranges of voltage - 5V, 9V and 12V ?
Please suggest.
Thanks.
Well if it is a standard USB connection on the charger and works with other devices, you can bet that it is 5v.
graydiggy said:
Well if it is a standard USB connection on the charger and works with other devices, you can bet that it is 5v.
Click to expand...
Click to collapse
Yes, mostly. I have this charger with me and don't want to buy another one, and I have 2 phones to charge while travelling in the car.
One question: Whether the Nexus6 support all ranges of voltage - 5V, 9V and 12V ? I have seen them printed on the inner side of the Turbo Charger. But want to know more about how it works.
Thanks.
The 9V/12V on the standard charger are for Qualcomm's Quick Charge. The phone will charge from a standard computer USB port outputting 5V/500mA (albeit very slowly) if you wanted to. The phone will draw as much power as the charger can output for a given voltage, up to the limits programmed into the kernel for the charging chip. Either the charger or the phone could be the rate limiter, but any charger that you can have a microUSB connection to plug into the phone should work.
so this combo is working for me:
http://www.amazon.com/gp/product/B010UT6Z3Q?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s01
http://www.amazon.com/gp/product/B00W98IQ5M?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00
the latter also allowed me to fastboot oem unlock.
so battery is at 59%, homescreen says 14 minutes till full.
cheers
can you please check with Ampere or GSAM for the charging speeds that you achieve?
does the device say fast/rapid charging?
Interested to hear the results from Ampere or GSAM as well
i cant get a good handle on how ampere works. it keeps measuring, takes forever, and fluctuates a lot.
with the aukey combo, i got 1830/2050mA @ 4.14v, at 53%, 37.7c
took it off charge for a while and tried again with the stock charger:
with the stock charger, i got 1850/1860mA(min/max) @ 4.159Vat 61%, 30.7c
I will try again at 50% today if I have time but I am pretty pleased with my little aukey combo. It was cheap.. I got it when there was a 7 dollar coupon floating around.
FYI, believe this is the same charger : http://www.amazon.com/gp/product/B00QEX83LA/
Use Promo Code DBVITSZB to drop price to $6.99
Can only purchase 1 at the discounted price.
TCstr8 said:
FYI, believe this is the same charger : http://www.amazon.com/gp/product/B00QEX83LA/
Use Promo Code DBVITSZB to drop price to $6.99
Can only purchase 1 at the discounted price.
Click to expand...
Click to collapse
Yep that would be the one. charging at 1800mA is not the fastest that the phone can charge at though. I'm going to hold off for the ones that enable the full speed of charging
http://www.droid-life.com/2015/10/19/nexus-6p-nexus-5x-quick-charge/
For 7 bux I think it's still a good deal for someone who doesnt have a spare to use
From the product description, you are only going to get 2A out of the charger. 5X doesn't do QC2.0, so you will only get the output at 5V, which for this charger is 2 amps.
Specifications:
Input: AC 100-240V
Output: 5V/2A, 9V/2A, 12V/1.5A
Dimensions2.69*2.05*0.87in)(68.5*52*22mm)
zackhow said:
From the product description, you are only going to get 2A out of the charger. 5X doesn't do QC2.0, so you will only get the output at 5V, which for this charger is 2 amps.
Specifications:
Input: AC 100-240V
Output: 5V/2A, 9V/2A, 12V/1.5A
Dimensions2.69*2.05*0.87in)(68.5*52*22mm)
Click to expand...
Click to collapse
But some Aukey chargers with AIPowertech like this one "charges all non-Quick ChargeTM 2.0 phones and tablets at their normal speed (up to 5 volts / 2.4A Max)with AIPower Tech Technology."
I've got the charger, just not the cables... so haven't been able to test.
I tested Aukey PA-T2 wall charger QC2.0 port ( orange one) on a Sony Xperia Z3 compact tablet
I recorded charging current up to 2.7Amp with the Aukey USB cable and up to 3.0 Amp with the Sony USB cable !!!! far more than the 2.0 Amp level current Aukey specifies......
The voltage - current output test show that the voltage stay in the 9.0V range with current up to 2.4Amp then fall down very quickly. It seems that the voltage stay at a value enough to deliver up to 3.0 Amp charging current to the tablet ....
Detailed test are here (http://78michel.unblog.fr/?p=860 in french....)
Current values where obtained from BMW recordings
Using the
Aukey Quick Charge 2.0 18W USB Turbo Wall Charger
And
http://www.amazon.com/dp/B01706YAXY
Getting Charging Rapidly. The juice isn't nearly as good as the stock charger, but this is the first combo with a USB-A to USB-C cable that I've gotten the Charging Rapidly notification.
7_michel said:
I tested Aukey PA-T2 wall charger QC2.0 port ( orange one) on a Sony Xperia Z3 compact tablet
I recorded charging current up to 2.7Amp with the Aukey USB cable and up to 3.0 Amp with the Sony USB cable !!!! far more than the 2.0 Amp level current Aukey specifies......
The voltage - current output test show that the voltage stay in the 9.0V range with current up to 2.4Amp then fall down very quickly. It seems that the voltage stay at a value enough to deliver up to 3.0 Amp charging current to the tablet ....
Detailed test are here (http://78michel.unblog.fr/?p=860 in french....)
Current values where obtained from BMW recordings
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LOL, thanks... but that doesn't really help this 5X cause. Given that there is no quick charge on the 5X, it'll remain at 5V. The question is whether it'll pull more than the 2A or 2.4A specified on these chargers at 5V on a 5X.
PatcheZ said:
LOL, thanks... but that doesn't really help this 5X cause. Given that there is no quick charge on the 5X, it'll remain at 5V. The question is whether it'll pull more than the 2A or 2.4A specified on these chargers at 5V on a 5X.
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Aukey quick charge 2.0 behave like a standard charger when connected to a non QC2.0 compatible device. The output voltage will stay to 5V so the current level will be very sensitive to the quality of the USB cable and limited by the maximum current the device will afford.
In practice it is very difficult to reach 2A charging level ( even if the charger is able to deliver such current) with a voltage output of only 5V , due to losses in cables and connectors
From my experience the higher current charging level I obtained was with a Samsung wall charger refence EP-TA10EWE which deliver an output voltage of up to 5.5V at 1.9A ( nominal voltage is claimed at 5.3V)
I got 1.7Amp charging current on my Nexus 5 while with the Aukey QC2.0 the current was only 1.1 Amp in exactly same conditions ( these recorded data are also reported in my blog .....in French.....)
7_michel said:
Aukey quick charge 2.0 behave like a standard charger when connected to a non QC2.0 compatible device. The output voltage will stay to 5V so the current level will be very sensitive to the quality of the USB cable and limited by the maximum current the device will afford.
In practice it is very difficult to reach 2A charging level ( even if the charger is able to deliver such current) with a voltage output of only 5V , due to losses in cables and connectors
From my experience the higher current charging level I obtained was with a Samsung wall charger refence EP-TA10EWE which deliver an output voltage of up to 5.5V at 1.9A ( nominal voltage is claimed at 5.3V)
I got 1.7Amp charging current on my Nexus 5 while with the Aukey QC2.0 the current was only 1.1 Amp in exactly same conditions ( these recorded data are also reported in my blog .....in French.....)
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Thanks, didn't think to look at the link.
I wonder how older phones like the NA Galaxy S3 and Nexus 4 that both have QC1.0 ([email protected]) compare to the charging of the Nexus 5.
I'm curious as to how you did your testing, as I'm going to try my own testing once my cables come in. Did you drain all your phone's battery to 0 before performing each test? Phone airplane mode vs off? I also think that all tests must be done in relation to time, especially since the charging profile changes as the phone charges. I'm also curious as to how the non QC port on the Aukey performs, since it's spec'd at 2.4A @ 5V.
PatcheZ said:
Thanks, didn't think to look at the link.
I wonder how older phones like the NA Galaxy S3 and Nexus 4 that both have QC1.0 ([email protected]) compare to the charging of the Nexus 5.
I'm curious as to how you did your testing, as I'm going to try my own testing once my cables come in. Did you drain all your phone's battery to 0 before performing each test? Phone airplane mode vs off? I also think that all tests must be done in relation to time, especially since the charging profile changes as the phone charges. I'm also curious as to how the non QC port on the Aukey performs, since it's spec'd at 2.4A @ 5V.
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Click to collapse
All tests are made with battery drained to zero before starting , and a complete charge is done in each conditions. That way I can check that the full charging time is logically related to the recorded current values. The current is recorded during the complete cycle at a frequency of one value per mn.
The air plane mode was off.
Aukey QC port and non QC port are slighly differents when connected to non QC2.0 devices :
QC port delivers 5.1V in open circuit, the voltage encrease to 5.2V at 2.2Amp, on the contrary the non QC port delivers 5.2V in open circuit and decrease to 5.1V at 2.2Amp. I did not test them at higher current level.
I did not tested Galxy S3 or Nexus4 , but I beleive that a charger like the Samsung EP-TA10EWE will deliver them the maximum charging current they are programmed to accept, as obeserved for the Nexus 5.
I got the same charging current curve I recorded with Nexus 5 and Samsung EP-TA10EWE, with other set of charger and cable. This means that this charging curve is defined by the Nexus 5 inner program , not the charger characteristics. The problem is that we never know which is the max current curve internally programmed for each smartphone...... so it could be a long way to find it.......