All,
I am a new owner of a used SM-P905V purchased on Amazon. It's a replacement for my old Note 10.1 2012 edition that died some time ago. I am curious as to what the expected behavior is with this tablet specifically pertaining to charging the device. The purchase didn't come with it's own charger so I have been using the Samsung adaptive fast charger that came with my Note 5 phone, the EP-TA20JWEUSTA model specifically. Now, my old tablet came with it's own proprietary charger and nothing I've found seems to indicate the Note Pro needs a proprietary charger.
So with the above in mind, I am trying to establish the known, expected behavior as it pertains to charging the device. I've observed that the battery will drain if I am using the tablet at anything greater than the halfway mark on the screen brightness slider but seemingly only if the device is below 100% charge when I start using it. It seems that if the device is at 100 full charge and plugged in, I can use it indefinitely while plugged in. Additionally, it seems to charge at a normal pace when it is sitting unused and plugged in.
So, is this what everyone's experience is in general? Would this indicate a need for a battery replacement? Is there a proprietary charger that would offer better charging rates? I have installed a charging monitor app and noticed that the output fluctuates greatly between 40ma and 1300ma when it's sitting idle and charging.
I have cleared the cache, which seemed to help but my expectation is that I should be able use this device while plugged in, regardless of activity/screen brightness and expect that it would charge the battery rather than drain it.
Device is full stock, unrooted.
Any insight is appreciated.
Sounds normal to me.
The problem with tablets like this is that the screen is LCD(instead of AMOLED, which would cost a fortune) and massive. Which means it uses so much power that all the charger can do while you're using it is keep it level. Lower brightness means less drain.
On top of that the hardware is also quite powerful, which drains it even further.
The original NotePro Charger is identical to the Note 3 N9005 charger and the S5 G900F charger. (I've got all three, same product number and specs.)
Also note that Qualcomm Fast Charge, which comes on the Snapdragon versions of the NotePro, requires a USB3.0 cable.
Original NotePro charger specs:
EP-TA10EWE
5.3V 2.0A
The charger that came with the Note 5(and Note 4) has a lower voltage rating, which impacts charging speed. It's 5.0V 2.0A.
(This one came with the German P905)
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Thanks for the info. Does .3v really make that big of a difference? I was using the usb 3.0 cable at first then switched to the micro usb cable that came with the phone, I thought the cable could handle it. I'll switch back tonight and try it. Do you know what the US model number is for the above charger. All of the equivalent replacements I can find on Amazon are 5.0V @ 2a.
PsycloneTW said:
All,
The purchase didn't come with it's own charger so I have been using the Samsung adaptive fast charger that came with my Note 5 phone, the EP-TA20JWEUSTA model specifically. Now, my old tablet came with it's own proprietary charger and nothing I've found seems to indicate the Note Pro needs a proprietary charger.
I have installed a charging monitor app and noticed that the output fluctuates greatly between 40ma and 1300ma when it's sitting idle and charging.
.
Click to expand...
Click to collapse
It doesn't matter if you're using 5 volts/2 Amps or 5.3 volts/ 2 Amps adapter as the charging current is almost the same: around 1.7 Amps.
However, incorrect USB charging cable will draw less current although it's USB 3 cable, so the important is buying the USB 3 cable designed for this model. It usually is larger in diameter so it can draw more current. If you get around 1 Amps, your USB cable is the wrong one unless the tablet is almost fully charged. Under 90% battery, the charging current should be around 1.7 Amps.
Here is the 5.3 volts adapter
Then I'm using 5 Volts/2 Amps adapter, the charging current is almost the same
However, the charging current is less when using the wrong USB 3 cable
So the key is buying the USB cable specifically designed for the Note Pro 12.2 inches. In above picture, the USB 3 cable is smaller in cable size which is for phone, draws only 1 Amp current. You can use the micro USB too, as charging is the same as USB 3 cable which has only faster speed for data transfer but this micro USB 2 cable must have a rate at 2 Amps, micro USB for phone only draws 1 Amp at max.
This is a micro USB charging cable
Beut said:
It doesn't matter if you're using 5 volts/2 Amps or 5.3 volts/ 2 Amps adapter as the charging current is almost the same: around 1.7 Amps.
However, incorrect USB charging cable will draw less current although it's USB 3 cable, so the important is buying the USB 3 cable designed for this model. It usually is larger in diameter so it can draw more current. If you get around 1 Amps, your USB cable is the wrong one unless the tablet is almost fully charged. Under 90% battery, the charging current should be around 1.7 Amps.
Here is the 5.3 volts adapter
Then I'm using 5 Volts/2 Amps adapter, the charging current is almost the same
However, the charging current is less when using the wrong USB 3 cable
So the key is buying the USB cable specifically designed for the Note Pro 12.2 inches. In above picture, the USB 3 cable is smaller in cable size which is for phone, draws only 1 Amp current. You can use the micro USB too, as charging is the same as USB 3 cable which has only faster speed for data transfer but this micro USB 2 cable must have a rate at 2 Amps, micro USB for phone only draws 1 Amp at max.
This is a micro USB charging cable
Click to expand...
Click to collapse
Any idea where to find an authentic USB 3.0 cable? I did buy this tablet used and it came with a usb 3.0 cable that *looks* legit in that it is noticeably heavier duty than a standard microusb cable and resembles both of the cables that you show in your pictures, you'll agree there is a very slight difference in appearance between the authentic and the non authentic USB 3.0 cable. One might only be able to tell the difference between them if they were side by side.
I have a regular microusb cable that came with my Note 5. The adaptive fast charger does output 2A. Is it a safe/accurate assumption to think that this microusb cable would be able to support 2A for the Note 12.2?
If not, can you link me to where I could purchase a cable that meets the charging requirements?
PsycloneTW said:
Any idea where to find an authentic USB 3.0 cable? I did buy this tablet used and it came with a usb 3.0 cable that *looks* legit in that it is noticeably heavier duty than a standard microusb cable and resembles both of the cables that you show in your pictures, you'll agree there is a very slight difference in appearance between the authentic and the non authentic USB 3.0 cable. One might only be able to tell the difference between them if they were side by side.
I have a regular microusb cable that came with my Note 5. The adaptive fast charger does output 2A. Is it a safe/accurate assumption to think that this microusb cable would be able to support 2A for the Note 12.2?
If not, can you link me to where I could purchase a cable that meets the charging requirements?
Click to expand...
Click to collapse
The micro USB is working fine as the USB 3 cable has the same rate of 2 Amps, it's only faster by data transfer because it's USB 3. If you're looking closely, the portion for charging of USB 3 is the same as micro USB, the other one for data. USB 3 cable is the same as micro USB for charging but its data transfer rate is 10 times faster.
Micro USB cable must be 2 Amps cable, it's usually larger than the 1 Amp cable by size.
However, if you want USB 3 cable, try this one
https://www.amazon.com/Samsung-Sync...8&keywords=usb+cable+for+galaxy+note+pro+12.2
Related
Would it be safe to charge the batter at 1000mA compared to the stock 700mA the charger provides?
yes, i do it all the time
I use the charger from the Galaxy Tab all the time, it's rated at 2A and the S does see it as a proper charger. I've not checked, but I also think it charges the phone faster than the stock charger.
terje.tel said:
I use the charger from the Galaxy Tab all the time, it's rated at 2A and the S does see it as a proper charger. I've not checked, but I also think it charges the phone faster than the stock charger.
Click to expand...
Click to collapse
yes it does
the higher the Amp, the faster it charges
however this is not compatible with all phones
the SGS is a good phone, my Motorola will not charge if you exceed or you are under the original charger spec (which is totally stupid) but i understand it is to protect the phone, from over heating
SNS also accepts higher output chargers
So can I use this ?
actually it is ipad charger, 5.1V 2.1A output.
On the phnoe label it is printed max~1000mA
but this is 2.1A.....(2100mA)
it seems too high...
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The battery might heat up to a high temp and if done regularly it could very well shorten the life span significantly.. the stock 700mA charger makes the battery warm, Im guessing that 2100mA will make it very hot, but you can try for like 30mins of charging see if thats the case.. if you can just say its warm then I would presume its safe.
700 to 1000mA charging has very little difference on the warmth that i feel from the battery.
If you have the International Galaxy S GT-I9000 it won't charge any faster than about 450mA regardless of the charger rating (from my tests). You can get a higher-capacity charger but it won't make any difference and is quite safe so long as the voltage is correct.
TheBeano said:
If you have the International Galaxy S GT-I9000 it won't charge any faster than about 450mA regardless of the charger rating (from my tests). You can get a higher-capacity charger but it won't make any difference and is quite safe so long as the voltage is correct.
Click to expand...
Click to collapse
The International Galaxy S I have comes with a 700mA charger though, there is a noticeable charge difference between a USB port (500mA) vs the stock charger (700mA) and my 1000mA charger
If 2100mA is also supported, the charge time will become in just 43min (in theory).
And if the charge circuit is safe enough, it will control the current to 700~1000mA, and it will drive below 200mA in the beginning of charge.
Just try plugged to my phone, it is charging as USB not AC,
so I think the currect will limit to 500mA.....
will try again later, my battery is still full now.
If theres a 500mA limit why do I get faster charging speeds with the wall charger compared to the USB ?
EarlZ said:
If theres a 500mA limit why do I get faster charging speeds with the wall charger compared to the USB ?
Click to expand...
Click to collapse
That's the question..
I'm using data cable, so the phone just detect plugged to USB i/o AC power.
maybe I need to use straight miniusb power cord.
Then it will really challenge the phone in 2.1A
On the other hand, IP4 & Ipad can draw 1A from computer USB, (need new motherboard)
what about Galaxy S !?
I will test it later.
terje.tel said:
I use the charger from the Galaxy Tab all the time, it's rated at 2A and the S does see it as a proper charger. I've not checked, but I also think it charges the phone faster than the stock charger.
Click to expand...
Click to collapse
If the charge time is less than one hour,
you are getting benefit of high current.
johan8 said:
That's the question..
I'm using data cable, so the phone just detect plugged to USB i/o AC power.
maybe I need to use straight miniusb power cord.
Then it will really challenge the phone in 2.1A
On the other hand, IP4 & Ipad can draw 1A from computer USB, (need new motherboard)
what about Galaxy S !?
I will test it later.
Click to expand...
Click to collapse
Im not 100% sure but the USB 2.0 specification is 500mA only.
EarlZ said:
Im not 100% sure but the USB 2.0 specification is 500mA only.
Click to expand...
Click to collapse
Yes I know.
But IP4 and Ipad is also USB2.0
johan8 said:
Yes I know.
But IP4 and Ipad is also USB2.0
Click to expand...
Click to collapse
In relation to what you said that IP4 and IPxD can draw 1A, thats why I said the USB 2.0 spec is only 500mA so those devices cant draw more than 500mA on a USB port.
EarlZ said:
In relation to what you said that IP4 and IPxD can draw 1A, thats why I said the USB 2.0 spec is only 500mA so those devices cant draw more than 500mA on a USB port.
Click to expand...
Click to collapse
IP4 is USB2.0 Device,
plug into high power USB port (that is USB3.0 port)
USB2.0 IP4 can draw over 500mA
I know what you mean, if the source is USB2.0 of course you can't draw higher than 500mA.
My point is, if the device can draw higher than 500mA, just like the usb2.0 IP4,
and if galaxy s can draw that high,
then we can get benefit from the high output usb ports and also that high output usb charger.
Hello everybody,
I want to share my experience.
So I have a Samsung galaxy S, and usually I charged it with the original charger (700mA).
I tried with a 1000mA one. The charger was really faster than with the original one. So I thought that if I buy the galaxy tab's charger (2000mA) it would be faster.
It's what I did. But the problem is that it's not faster with this one than with the 1000mA one.
I think the problem comes from the USB limit of charge (1000mA in a outlet, 500mA on a USB port from a computer).
But I have a problem with this... I mean, the galaxy tab is charged by an USB cable too, even if it's not the same plug out (I don't know the name of this plug out, I know on the galaxy S it's a micro-USB) on the cable, it's still an USB cable. So why this USB cable can give 2000mA while it uses an USB technology ?
it's definitely faster charging on a 1200 nokia charger..
Sent from my GT-I9000 using XDA App
I can't help myself and I must tell you guys something. The mA of a charger means how much current it can provide in 1 hour, imagine it like a pipe through which only a ammount of watter can pass. Now going back to the phone... We have a 1500mA batt which means that if we use a 25000mA charger it will only output 1500mA... So it is useless to use a more powerfull charger than 1500mA. I hope you understand what I said
That is a 1500mA*h* battery which means capacity and not current.
Sent from my GT-I9000 using XDA App
I tried charging with a USB 3.0 extension cord , But it is really Slow .
Any idea how to get it to charge at normal speeds?
klau1 said:
I tried charging with a USB 3.0 extension cord , But it is really Slow .
Any idea how to get it to charge at normal speeds?
Click to expand...
Click to collapse
probally not a high enougth ampage, think it needs to be 2amp, guess its trickle charging (charging extremely slowly)
Standard power output on computer USB ports is around 0.5 amps. Way too low. As Alex says you need 2 or 2.1 amp charger such as the one that came with the Note.
If you are using a different type of 2 amp charger - car charger or battery block - you will probably also need a polarity switcher to attach the standard Note USB cable.
No, I connect the USB extension cable from the Note 10.1 AC Adapter directly, and then connect the Note 10.1 30 pin connector to the other end.
Why doesn't this work?
Is it supposed to dampen the amps?? or is there something wrong with the cable?
klau1 said:
No, I connect the USB extension cable from the Note 10.1 AC Adapter directly, and then connect the Note 10.1 30 pin connector to the other end.
Why doesn't this work?
Is it supposed to dampen the amps?? or is there something wrong with the cable?
Click to expand...
Click to collapse
As I said before, if you use another charger (or an extension cable) you will also need a polarity switcher.
For example : http://dx.com/p/usb-data-charging-e...1141?rt=1&p=2&m=2&r=3&k=1&t=1&s=81753&u=91141
NB for this connection P1000 Tablet and Note 10.1 are identical.
If you don't have this adaptor switched to "Charge" then you will see a red cross on the battery notification symbol. Include this and the red cross goes away and you just get the charging symbol. Just tested it with a 2 metre usb extension cable and a switcher and it works fine.
Alternatively you could use this cable directly with your extension cable without using the standard charging cable (two cables instead of three) - http://dx.com/p/designer-s-usb-char...2276?rt=1&p=2&m=2&r=3&k=1&t=1&s=91141&u=72276
Just to Confirm, Does this apply to Cable ONLY extension cables connected to the Official AC Adapter?
BTW, the "red cross on the battery notification symbol." never appeared even with the USB Cable extension. The NORMAL Battery icon with charging symbol appeared. It was just charging VERY slowly.
Type 1 (cable only):
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Type 2:
I'm not using the intelligent Type 2 that has extra logic built-in. I'm just using a Type 1, pure cable.
pwatkins said:
As I said before, if you use another charger (or an extension cable) you will also need a polarity switcher.
For example : http://dx.com/p/usb-data-charging-e...1141?rt=1&p=2&m=2&r=3&k=1&t=1&s=81753&u=91141
NB for this connection P1000 Tablet and Note 10.1 are identical.
If you don't have this adaptor switched to "Charge" then you will see a red cross on the battery notification symbol. Include this and the red cross goes away and you just get the charging symbol. Just tested it with a 2 metre usb extension cable and a switcher and it works fine.
Alternatively you could use this cable directly with your extension cable without using the standard charging cable (two cables instead of three) - http://dx.com/p/designer-s-usb-char...2276?rt=1&p=2&m=2&r=3&k=1&t=1&s=91141&u=72276
Click to expand...
Click to collapse
I ordered that extact one and when I plug that into my original samsung adaper then into the 10ft USB 3.0 cable then into the original 30 pin cable, it charges but at a slow rate still, even with the little polarity switched to charge like you said.
I've used 2 usb extension cables, and the oem cable along with a 3rd party (Sync/charge) cable. I guess I should say I've used both the normal charger and belkin surge protector with built in usb ports.
This is what I've found. First the usb extension cable matters a lot. A "Smart" usb extension cable will take a little bit of the power to do it work, so less power to the device. Second if the extension cable is not well insulated or a thin cable you have more resistance and don't get as much power to your device. I now use a straight usb extension cable that you'll get if you goto Walmart or Target. Don't use one of the retractable/portable ones since they are normal thinner.
Now the intersting part. If you are running a custom Rom, that will effect how fast charging is with the extension. Redemption Rom only would do a trickle charge, while Omega v2.1 and "Collective Edition v6 Dark Side" both charge just fine with the extension. Redemption Rom did charge without the extension at the normal rate for me.
Kinda intersting that a usb extension and what rom your running could cause slow charging. Might not effect everyone the same way, but that is how I've seen things go so far.
Mine charges normally with a 3 ft USB 2.0 extension that has a thick cable on my factory charger but I only use it if I'm in a pinch.
I have never seen an Note 10.1 OEM charging cable longer than 3 feet. So if there isn't one longer........... is Samsung being cheap not to including or make a cable longer than 3 ft for the Note 10.1 or is there to much power loss for them.
You wonder as Samsung does make kick a s s products that seem to be fairly reliable so I guess they must have a good reason.
Instead of buying a longer usb charge cable I changed the unit that plugs into the charger, I use a long mains cable like the one in a ps3.
Sent from my GT-N8010 using xda app-developers app
good idea
klau1 said:
I tried charging with a USB 3.0 extension cord , But it is really Slow .
Any idea how to get it to charge at normal speeds?
Click to expand...
Click to collapse
I had the same thing but when I looked deep in the charger I found that there are only 2 pins are used to provide the power the 1st and the last
so when you plug the original short cable then the extension it seems that it consumes more power I don't know why
I moded my cable that I broke the 2nd and the 3rd pins and when I connect it to my pc it charged normally with 1.5 meters extra
Hey everyone I'm trying to gauge if my note pro is faulty or if this is just normal for them. It seems to take a really long time to charge and I've even had the battery percentage go down While plugged in and doing some light browsing. Here's a screenshot of the battery info while charging and it seems like that's a really long for it to charge. I appreciate any insight thanks.
Sent from my SM-P900 using XDA Free mobile app
If you are using less than 2 amp charger it will not keep up with tablet on. Tablet off charging time doubles if 1 amp charger. I use a standard micro USB cable usually, the usb 3 cable charges faster when using 2 amp charger I believe.
Sent from my SAMSUNG-SM-P907A using XDA Free mobile app
Not sure why the screenshoot I took didn't show but let me try again.
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I've had the tablet discharge even when using the 2A charger, but it was microusb not usb3. If I'm using the 2A brick does the microusb vs usb3 cable make a difference?
The screenshoot was taken while plugged into a microusb cable into a 1A brick. I get that the 1A will be slower, but 2 hours to go 15% seems crazy and the tablet was merely powered on and connected to wifi, not in use.
Rockman195 said:
Hey everyone I'm trying to gauge if my note pro is faulty or if this is just normal for them. It seems to take a really long time to charge and I've even had the battery percentage go down While plugged in and doing some light browsing. Here's a screenshot of the battery info while charging and it seems like that's a really long for it to charge. I appreciate any insight thanks.
Sent from my SM-P900 using XDA Free mobile app
Click to expand...
Click to collapse
Common problem of Galaxy Note and Tab Pro: cracked battery connector. Resolder battery connector will fix : quick discharge, long charge time, not fully charged, battery capacity fluctuation....etc...
This black battery connector was re soldered already to fix this problem:
As seen in above picture, battery cables are not fully contact with pins of male battery connector also are the source of problem.
The fix is simple: pushing the opening closer, you need a magnified glass and thin knife to do this:
After the fix, this is a good connection between male and female battery connector:
It takes Exynos (which a P900 is) Note 12's over 8 hours to fully charge. I had a Exynos 10.1-14 and it took seven hours. It's one of the reasons I got a Snapdragon Note 12 because it cuts charging time dramatically.
A few things to consider:
Never, absolutely never use a 1A charger with a device this powerful. It will drain more than it charges.
1A chargers are not powerful enough for modern quadcore devices. Even the Note 3 (which has the same hardware) requires 2 hours to charge 30% when using a 1A charger. (It has a significantly smaller battery than the NotePro)
USB2/MicroUSB charges at a rate of 500mA.
USB3 charges at a rate of 900mA.
(The small side of the USB3 plug is what makes it USB3, the other side is just a regular MicroUSB 2.0)
This also applies to the amount of power the cable itself will transfer. A such, using a USB2.0 cable will severely limit charging speed.
Another thing of importance is the device itself. The P905 has Qualcomm Fastcharge. The P900 does not. That amounts to several hours of difference in charging rate.
ShadowLea said:
A few things to consider:
Never, absolutely never use a 1A charger with a device this powerful. It will drain more than it charges.
1A chargers are not powerful enough for modern quadcore devices. Even the Note 3 (which has the same hardware) requires 2 hours to charge 30% when using a 1A charger. (It has a significantly smaller battery than the NotePro)
USB2/MicroUSB charges at a rate of 500mA.
USB3 charges at a rate of 900mA.
(The small side of the USB3 plug is what makes it USB3, the other side is just a regular MicroUSB 2.0)
This also applies to the amount of power the cable itself will transfer. A such, using a USB2.0 cable will severely limit charging speed.
Another thing of importance is the device itself. The P905 has Qualcomm Fastcharge. The P900 does not. That amounts to several hours of difference in charging rate.
Click to expand...
Click to collapse
Interesting and good to know. Would a Micro USB to usb3 adapter do anything on a cable or no? Ordered some 2a power bricks since I only had one previously
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
ShadowLea said:
Using a USB2.0 cable will severely limit charging speed.
Click to expand...
Click to collapse
Not true. The way Samsung implented USB 3.0 the sole advantage is transferring files from the device more quickly. So no need to waste money on clunky USB 3.0 cables that arent compatible with other mobile devices. From Anandtech...
There’s been a lot of talk about the presence of USB 3.0, even though the micro B connector type has been around for considerable time already and in a ton of devices. The Note 3 just has the misfortune of apparently being many people’s first exposure to the connector, whose awkward double lobed shape gives it forwards compatibility with microUSB 2.0. The rightmost region is just the familiar microUSB 2.0 connector, the left contains the pins for SuperSpeed signaling for 3.0. Plug something into the right 2.0 jack and you get 2.0 speed for transfers and charging. 3.0 at present should give you faster transfer rate, and eventually faster charging, but the Note 3 continues to use Samsung’s 2.0 amp charging spec and rate, but more on that later.
Charging is an interesting story on the Note 3, but primarily because of what doesn’t change. The Note 3 continues to use Samsung’s tablet charging specification and charger, which has 2 amps of maximum output. The Note 3 draws 2 amps over a considerable amount of the charging curve, like other Samsung devices (in the linear part of the charge curve). USB 3.0 doesn’t change things up here quite yet with the new supported charge voltages that are coming eventually with the power delivery specification.
The move to USB 3.0 is interesting and could be a big benefit when it comes to getting large files off of the device (the NAND/eMMC isn't quick enough to make USB 3 any faster at putting data on the phone).
http://www.anandtech.com/show/7376/samsung-galaxy-note-3-review
Click to expand...
Click to collapse
BarryH_GEG said:
Not true. The way Samsung implented USB 3.0 the sole advantage is transferring files from the device more quickly. So no need to waste money on clunky USB 3.0 cables that arent compatible with other mobile devices. From Anandtech...
[/i]
Click to expand...
Click to collapse
Agree . . I may not have an inline amp meter to verify for sure but based on my own charge rate observations using GSam Battery Monitor Pro I see no noticeable difference between a 2.0 vs stock 3.0 cable using the stock charger.
Those charge ratings quoted by Shadowlea I believe are for the USB specs themselves which may or may not be adhered to when the device is plugged into a computer but don't necessarily translate to using 2.0 vs 3.0 cables on 2 amp chargers.
muzzy996 said:
Those charge ratings quoted by Shadowlea I believe are for the USB specs themselves which may or may not be adhered to when the device is plugged into a computer but don't necessarily translate to using 2.0 vs 3.0 cables on 2 amp chargers.
Click to expand...
Click to collapse
If we have Quick Charge, and I'm not sure we do, it's 1.0. The Note 4 was the first to support adaptive fast charging which Qualcomm introduced in QC 2.0.
From Qualcomm...
In laboratory tests using a 3300mAh battery, a Quick Charge 2.0 enabled device went from 0% to 60% charge in 30 minutes, while a device without Quick Charge 2.0 using a conventional (5 volt, 1 amp) charger achieved just a 12% gain in the same 30 minutes. A device with Quick Charge 1.0 managed a 30% charge in that time period.
Click to expand...
Click to collapse
BarryH_GEG said:
Not true. The way Samsung implented USB 3.0 the sole advantage is transferring files from the device more quickly. So no need to waste money on clunky USB 3.0 cables that arent compatible with other mobile devices. From Anandtech...
[/i]
Click to expand...
Click to collapse
When using the same charger: (Namely the original NotePro charger)
(Ignore the average rate, that's useless given the fact that I just installed the app).
With Original Samsung TabPro USB 2.0 MicroUSB cable:
With Original Samsung NotePro USB 3.0 Cable:
Both cables are the same age, both are official and neither is damaged. Fun fact, the NotePro cable is 1 meter longer, but still charges faster.
I get the exact same results on my Note 3 and my S5.
The NotePro can't be charged through a computer's USB port, by the way. Not without turning the device off completely and waiting three days.
You can't charge any faster than the 2A spec Samsung's provided no matter what charger and cable you use. Some non-Samsung cables and chargers may degrade charging but peak is peak. There are two sites I don't question and they're Anandtech and GSMArena. I accept what I quoted as truth. That and I personally see no charging difference using my stock 3.0 Cable and charger and my Note 5's fast charger and cable used in multiple combinations.
BTW, we do have Quick Charge 1.0; it started being included in Snapdragon S3's. It's 30% faster than a 1A charger but Samsung's always supported 2A so I don't know what the actual benefit is to us. 15%?
I have found Mi 4C's charging current quite bizarre, more so than what was shown in: http://forum.xda-developers.com/mi-4c/general/xiaomi-mi-4c-charging-analysis-part-1-t3209028
I don't have fancy equipment so I just downloaded the Ampere app to test the charging current. While the app is not meant to be an accurate measure of the current, I find its result quite consistent with the charging time that I obtain. (My Mi 4C is running TS CM13.)
Results:
1. Original charger + original cable = 4.41V/1220mA
Not sure if the voltage measurement is correct. I thought it would be 9V as indicated in the post which I link to above. But at least the current is quite consistent with what the others have got. It takes around 2 hours for an full charge.
2. Computer USB 2.0 port + original cable = 4.24V/250mA
It takes forever to charge. I have no idea why the current is so low. The same USB port is able to output 450mA on another phone.
3. Original Charger + 3rd party cable = 4.21V/170mA
I have no other USB Type-C device so I can't test if the cable is functioning properly. But this is just weird.
4. Portable Charger (5V/1A output) + original cable = 4.36V/860mA
This feels normal.
So I have two questions:
1. Why is charging through computer USB port so slow? I have selected "Charging only", not running any ADB.
2. Can Mi 4C work well with 3rd party cables?
It would be great if you could share your charging experience with Mi 4C. Thanks in advance.
I think the thing with Ampere is, it needs to have your screen on to measure. And it doesn't really measure the current, it takes the average charge rate of your battery and converts that to Amperes based on your total battery capacity (that is why it takes a few seconds to show). So whatever you read in ampere is your net charge rate, not what the charger is providing (whatever is draining your battery is included in the equation, your screen will be the biggest drain, you can test this with the brightness).
So that is why your usb charging looks like it's at half rate, it is probably 450-500 when the screen is off.
The 4c works well with 3rd party cables, provided they are not faulty of course. After all, the original cable is also just a transformed usb 2.0
The phone will basically never pull more power than it can handle. The charger however could be damaged if it's coupled with a bad cable and a device that draws more power.
legacyofthevoid said:
I have found Mi 4C's charging current quite bizarre, more so than what was shown in: http://forum.xda-developers.com/mi-4c/general/xiaomi-mi-4c-charging-analysis-part-1-t3209028
I don't have fancy equipment so I just downloaded the Ampere app to test the charging current. While the app is not meant to be an accurate measure of the current, I find its result quite consistent with the charging time that I obtain. (My Mi 4C is running TS CM13.)
Results:
1. Original charger + original cable = 4.41V/1220mA
Not sure if the voltage measurement is correct. I thought it would be 9V as indicated in the post which I link to above. But at least the current is quite consistent with what the others have got. It takes around 2 hours for an full charge.
2. Computer USB 2.0 port + original cable = 4.24V/250mA
It takes forever to charge. I have no idea why the current is so low. The same USB port is able to output 450mA on another phone.
3. Original Charger + 3rd party cable = 4.21V/170mA
I have no other USB Type-C device so I can't test if the cable is functioning properly. But this is just weird.
4. Portable Charger (5V/1A output) + original cable = 4.36V/860mA
This feels normal.
So I have two questions:
1. Why is charging through computer USB port so slow? I have selected "Charging only", not running any ADB.
2. Can Mi 4C work well with 3rd party cables?
It would be great if you could share your charging experience with Mi 4C. Thanks in advance.
Click to expand...
Click to collapse
look at this!
https://forums.oneplus.net/threads/charging-analysis-between-oneplus-2-and-xiaomi-mi-4c.387573/
The AMPERE App shows you the current chargeing ampere minus the usage and no Votlage from the charger!
The app show you 4,41 V and 1220 mA that says the battery has a voltage 4,41 V that is the charge state (battery %) and the
1220 mA say that the charger charge with that speed minus the actual using (-~300mA) 1220+300=1520 mA voltage unknow
Can't really say that Ampere or any other app for that matter is accurate in measuring the charging current. I would say get an actual hardware (i know there's one that you connect to the charger) that measures charging current if you really want to test charging current that bad.
As for me I only charge my phone in 2 different ways:
1. Thru the stock wall charger. From 0-100, it takes roughly 2hrs and 20mins. Quite fast for a battery with 3080mAh. Slower when compared to other 2015 devices with quick charge 2.0 i.e. the LG G4 that charges 0-60 in 30mins vs the Mi 4c's 0-40 in 1hr. Hopefully this is just a kernel limitation which remains to be seen till Xiaomi releases the kernel source.
2. Thru my powerbank with 2A output which takes about 3hrs+ from 0 to 100
Try this app: https://play.google.com/store/apps/details?id=com.slash.electron&hl=en
I think the decision of making USB 2.0 with type-C connector is kinda faulty. I tried using my Mi Pad 2's cable which is a true type-C and the charging time is much faster. I don't want to use 4c's cable anymore.
So far the most effective combination for me has been aftermarket qc2.0 charger and factory cable. With that combo, charge times have been comparable to my moto x (2014)
Using any of my micro USB cables with a type c adapter has resulted in substantially slower charge times, regardless of charger.
I have a couple other third party type c cables coming tomorrow. Hopefully I can find another successful combination.
does it come with usb3 (+cable)?
As far as I know it's a standard USB cable with a type C end slapped on it.
sounds kinda useless
I wouldn't go so far as to say its useless. It charges the phone and allows for data transfer. Those are fairly useful things.
well, i was more relating to the nature of the cable as stated before:
leledumbo said:
I think the decision of making USB 2.0 with type-C connector is kinda faulty. I tried using my Mi Pad 2's cable which is a true type-C and the charging time is much faster. I don't want to use 4c's cable anymore.
Click to expand...
Click to collapse
anyway, i got the phone myself now and gonna try some other cables/chargers. my plan is to compare AUKEY, Blitzwolf, RAVPower and Qualcomm devices. big effort, but i have made pretty bad experiences with chargers (slow, noisy etc...)
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i have tested a new Car charges from China... QC2 and it Works very good! the Phone charges veeery fast
Gesendet von meinem Mi-4c
Aukey reached out to me to test some of their new OmniPower charging products so of course I obliged. They sent me their 63W dual USB C PD wall charger, 27W single port PD wall charger, 18W flush-fit PD car charger, 4-in-1 USB C hub with 100W PD passthrough and wireless charging, and finally their 8000mAh portable battery with PD and wireless charging. They also sent braided USB C to C and a C to Lightning cables.
I actually already owned the car charger, as my previous one had died and I was looking for the smallest form factor possible. I've had it a few months now and it reliably fast charged my P3XL, and I've had no issues with the 4XL either. It is incredibly compact, an I personally like that it doesn't have an LED. It only offers 18W, which is plenty for a phone, but if you're looking to charge a laptop off of it it won't charge as fast.
The 63W dual USB C charger was the device I was most excited about, as I have many USB C devices at this point so consolidating chargers for traveling is appreciated. It is not small by any means, but for a 63W dual charger it is very compact. The folding plug helps, but it is mostly due to the use of GaN, which I am very excited to see being used a bit more. When charging two devices it uses what Aukey calls Dynamic Detect, providing the right amount of power to each connected device. It can achieve max output of 45W on one port and 18W on the second; if charging just one device it will max out at 60W on the bottom port. That last part is important to remember, because there is no marking on the charger that indicates the bottom port is required for higher powered devices. When I first tried it I had the laptop plugged into the top port and got a low power charger warning. Switching the ports resolved this, and there was no power dip on either the phone or laptop when a second device was plugged in. That said, my Chromebook Plus doesn't pull more than 45W so if you're using something like a MacBook Pro it'll max out at 45W while another device is plugged in.
The single port 27W PD charger also uses GaN, and Aukey claims that it is the smallest of it's kind. It is simply a tiny cube, no bigger an an original iPhone charging brick, and the folding plug makes it even more compact to pack. Again, my P4XL charged with no problem. Even though my Chromebook OEM charger is 45W, this 27W charger did not give me a low power charging warning.
The 8000mAh battery pack is interesting in that it offers Qi wireless charging, though only at 5W. Given the slow charging combined with the inefficient nature of both wireless charging and battery packs this is more of a novelty to me, but nonetheless it does work. You have to double press the power button to activate it, so it is not constantly sending power to the coils. As for standard charging it has 2 USB A ports; one a QC 3 and the other a 5V/2.4A. It touts a low current mode to charge small devices like trackers or headphones that don't require as much juice as a smartphone. The USB C port puts out a max of 18W via PD. The battery is relatively slim, and about the same footprint as my 4XL. It's thin enough that you could conceivably have both the bank and phone in your pocket and use wireless charging, but unless you find yourself without a cable I wouldn't see why you'd want to.
The 4-in-1 USB C hub, which is about the same footprint as a generic wireless charging cube, though much thicker. It is well constructed, with a slightly rounded but grippy rubber top and a metal base. The heft of the metal as well as a rubber foot makes sure it doesn't slide around. There are four ports: HDMI with 4K output, USB C with 100W PD passthrough and 2 USB 3.0 A ports which can transfer at 5Gbps. To enable wireless charging you need to plug the hub into both a USB C charger and the C port on your laptop, but with the 100W pass through charging this will allow you to charge both your laptop and phone at the same time. The USB C passthrough charging speed is obviously dependent on the charger it is connected to. It's a very handy device given that more and more laptops are losing traditional ports like USB A and HDMI.
Lastly are the charging cables. The Lightning cable is 1.2m/3.9ft and the USB C is 2m/6.6ft. Aukey touts the graphene skin as allowing the cables to be thinner and more flexible, but still deliver fast data and charging speeds and the USB C is rated for PD up to 60W. They didn't give exact specs on the Lightning cable, but the marketing materials mention that it pairs well with 18w PD chargers so I'm assuming it is more limited in it's capabilities. Both cables are very high quality and I will definitely be using the USB C one on a frequent basis.
I'm a bit of a geek with these things so I'm always looking to try out the latest and greatest. I've got a drawer full of PD chargers and battery packs that go unused for one reason or another, but these will definitely be added to my frequently used items. The 63W charger is great because at this point most of the devices in our house are USB C, and the 27W is so small it will easily get thrown in my bag. I'm excited about GaN and I really hope to see small chargers with lots of ports. I've been using Aukey products for a while now, and this new lineup is definitely something I'd recommend. They are offering XDA members 50% off any of these OmniPower products on their website through the end of the month, and it looks like the discount applies to some of the items that are already discounted, so for example the battery pack is only $15.
https://shop.aukey.com/collections/omnipower
Code XDAONLY
pics. the power bank is next to a pixel 3 and the chargers are lined up next to the Pixel OEM charger, for reference
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kellybrf said:
pics. the power bank is next to a pixel 3 and the chargers are lined up next to the Pixel OEM charger, for reference
Click to expand...
Click to collapse
I bought the Focus Duo a few weeks ago when they sent me an email and I've been using it since then. Works perfectly and mine has a laptop logo (where yours says PD) in between the ports to let you know the bottom one is the 60w port.
Maybe you got an early revision of that one.
ilal2ielli said:
I bought the Focus Duo a few weeks ago when they sent me an email and I've been using it since then. Works perfectly and mine has a laptop logo (where yours says PD) in between the ports to let you know the bottom one is the 60w port.
Maybe you got an early revision of that one.
Click to expand...
Click to collapse
interesting, that would make a lot more sense haha!
Thanks for the in-depth review. I am looking for an extra charger, but don't want to spend a lot if I can avoid it. Compatibility is my question though. In order to enjoy the "Rapid Charging", do I need to look at anything other than output? Any help is appreciated! Thanks!!
kellybrf said:
Aukey reached out to me to test some of their new OmniPower charging products so of course I obliged. They sent me their 63W dual USB C PD wall charger, 27W single port PD wall charger, 18W flush-fit PD car charger, 4-in-1 USB C hub with 100W PD passthrough and wireless charging, and finally their 8000mAh portable battery with PD and wireless charging. They also sent braided USB C to C and a C to Lightning cables.
I actually already owned the car charger, as my previous one had died and I was looking for the smallest form factor possible. I've had it a few months now and it reliably fast charged my P3XL, and I've had no issues with the 4XL either. It is incredibly compact, an I personally like that it doesn't have an LED. It only offers 18W, which is plenty for a phone, but if you're looking to charge a laptop off of it it won't charge as fast.
The 63W dual USB C charger was the device I was most excited about, as I have many USB C devices at this point so consolidating chargers for traveling is appreciated. It is not small by any means, but for a 63W dual charger it is very compact. The folding plug helps, but it is mostly due to the use of GaN, which I am very excited to see being used a bit more. When charging two devices it uses what Aukey calls Dynamic Detect, providing the right amount of power to each connected device. It can achieve max output of 45W on one port and 18W on the second; if charging just one device it will max out at 60W on the bottom port. That last part is important to remember, because there is no marking on the charger that indicates the bottom port is required for higher powered devices. When I first tried it I had the laptop plugged into the top port and got a low power charger warning. Switching the ports resolved this, and there was no power dip on either the phone or laptop when a second device was plugged in. That said, my Chromebook Plus doesn't pull more than 45W so if you're using something like a MacBook Pro it'll max out at 45W while another device is plugged in.
The single port 27W PD charger also uses GaN, and Aukey claims that it is the smallest of it's kind. It is simply a tiny cube, no bigger an an original iPhone charging brick, and the folding plug makes it even more compact to pack. Again, my P4XL charged with no problem. Even though my Chromebook OEM charger is 45W, this 27W charger did not give me a low power charging warning.
The 8000mAh battery pack is interesting in that it offers Qi wireless charging, though only at 5W. Given the slow charging combined with the inefficient nature of both wireless charging and battery packs this is more of a novelty to me, but nonetheless it does work. You have to double press the power button to activate it, so it is not constantly sending power to the coils. As for standard charging it has 2 USB A ports; one a QC 3 and the other a 5V/2.4A. It touts a low current mode to charge small devices like trackers or headphones that don't require as much juice as a smartphone. The USB C port puts out a max of 18W via PD. The battery is relatively slim, and about the same footprint as my 4XL. It's thin enough that you could conceivably have both the bank and phone in your pocket and use wireless charging, but unless you find yourself without a cable I wouldn't see why you'd want to.
The 4-in-1 USB C hub, which is about the same footprint as a generic wireless charging cube, though much thicker. It is well constructed, with a slightly rounded but grippy rubber top and a metal base. The heft of the metal as well as a rubber foot makes sure it doesn't slide around. There are four ports: HDMI with 4K output, USB C with 100W PD passthrough and 2 USB 3.0 A ports which can transfer at 5Gbps. To enable wireless charging you need to plug the hub into both a USB C charger and the C port on your laptop, but with the 100W pass through charging this will allow you to charge both your laptop and phone at the same time. The USB C passthrough charging speed is obviously dependent on the charger it is connected to. It's a very handy device given that more and more laptops are losing traditional ports like USB A and HDMI.
Lastly are the charging cables. The Lightning cable is 1.2m/3.9ft and the USB C is 2m/6.6ft. Aukey touts the graphene skin as allowing the cables to be thinner and more flexible, but still deliver fast data and charging speeds and the USB C is rated for PD up to 60W. They didn't give exact specs on the Lightning cable, but the marketing materials mention that it pairs well with 18w PD chargers so I'm assuming it is more limited in it's capabilities. Both cables are very high quality and I will definitely be using the USB C one on a frequent basis.
I'm a bit of a geek with these things so I'm always looking to try out the latest and greatest. I've got a drawer full of PD chargers and battery packs that go unused for one reason or another, but these will definitely be added to my frequently used items. The 63W charger is great because at this point most of the devices in our house are USB C, and the 27W is so small it will easily get thrown in my bag. I'm excited about GaN and I really hope to see small chargers with lots of ports. I've been using Aukey products for a while now, and this new lineup is definitely something I'd recommend. They are offering XDA members 50% off any of these OmniPower products on their website through the end of the month, and it looks like the discount applies to some of the items that are already discounted, so for example the battery pack is only $15.
https://shop.aukey.com/collections/omnipower
Code XDAONLY
Click to expand...
Click to collapse
ShermCraig said:
Thanks for the in-depth review. I am looking for an extra charger, but don't want to spend a lot if I can avoid it. Compatibility is my question though. In order to enjoy the "Rapid Charging", do I need to look at anything other than output? Any help is appreciated! Thanks!!
Click to expand...
Click to collapse
I don't understand your question, but you'll need. power delivery charger to get fast charging
Do any usb c cables work for this? As long as its c to c of course
Good Morning
needed fast charging charger with EU plug and respective quick charging cable, what do you recommend ???
the cable can be USB / A - usb-c.
thanks
Good Morning
charger of this kind for pixel 4 xl fast charging, someone recommends one that is good.??
thanks