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[Q] Has anyone tried using the iPHONE USB Charing Block?

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It is rated at 1amp. I'm wondering if the Captivate allows us to actually charge the whole 1AMP or if it charges only .7Amps as a limit. Does anyone know?
If not, is there a application I can check the charge rate to let you guys know?

It works, as does my Moto 850ma block. Not sure if it is faster though.

alphadog00 said:
It works, as does my Moto 850ma block. Not sure if it is faster though.
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Yeah, I'm curious to know because my phone thinks it's connected to a PC and mounts my SD cards!
So it's thinking it's charging USB when it should be AC power...
Is there any way for us to monitor the Amps?

SlimJ87D said:
Yeah, I'm curious to know because my phone thinks it's connected to a PC and mounts my SD cards!
So it's thinking it's charging USB when it should be AC power...
Is there any way for us to monitor the Amps?
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same here , i dint realise that until i saw your post was wondering why it was doing that duh!!

yeah same thing hapens to me lol, does it rly matter if its charging USB power vs AC power?

SlimJ87D said:
Yeah, I'm curious to know because my phone thinks it's connected to a PC and mounts my SD cards!
So it's thinking it's charging USB when it should be AC power...
Is there any way for us to monitor the Amps?
Click to expand...
Click to collapse
this has been the only problem i've had as well. happens with a power strip i use that has usb ports to charge as well. very weird.

I just watched a video on hacking a self-built battery charger - the mintyUSB one where you use an Altoids Tin. It has a USB female port and hold 2 AA batteries. Well, they just put out a new way so it charges an iPhone. What apple does is put voltage on the 2 data lines and the phone detects this and thinks it a USB port. Most chargers don't put any current on these lines.
If it thinks it is on a USB port, it will draw a lower current.

so having a lower current just prolongs the charging process correct?

SiL3nTKiLL said:
so having a lower current just prolongs the charging process correct?
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Correct. But next time you have some spare time, try connecting your phone to a USB port and seeing how long it takes to charge.
It took my phone over an hour to go up three percent.

I've used the iPhone charger with the Captivate and it really doesn't charge any faster and honestly seems slower, it also really heats up the phone a lot more than the stock charger does.
When I plug the phone into my computer, it tells me it's only using 96mA (device manager) and charges faster than the iPhone charger does...

Well there we have it guys!
The iPhone charger is a no no! Because of those stupid pins...
I have a Mini USB charger that does 1AMP, I'm just going to buy a Micro USB to Mini USB adapter.

I use mine all the time. No problems.
Sent from my SAMSUNG-SGH-I897 using XDA App

ive been using the apple charging block and it seems to charge a bit faster

If you look closely on the AC plugin side of the iphone plug you will see it says it outputs 5V at 1A (1000mA). If you do some searching online for wall chargers you will see that the outputs for chargers range from DC 4.5V-9.5V at Max 800mA-1A. The iPhone charger should be fine with the captivate. I have been using the iPhone charging block for my phone and haven't had any problems.

i experienced a little problem where upon use of the apple charger, my phone would act like it was charging OVER USB.
you can verify how its charging by going into settings > about phone. on the normal samsung charger (.7A), it'll say "charging AC", however use of the apple charger prompted the phone to say "charging USB". in fact, i could even bring up the prompt to "mount" my sd card (even though its plugged into the wall).
not sure if the prob was just limited to me or to everyone

I get the same popup but it still charges...I don't think it hurts anything. The phone is just confused.

In the past, a lot of smartphones will fail to charge the battery on USB mode if the battery is critically low (< 20%) because they need > 500ma to initiate the charge process in that situation. So, even though your phone can still get trickle charges from USB mode, it won't charge at all when you really need it. Not sure if it is still true for Captivate. Make sure you test it out before you leave home without the stock AC adapter.

well the type of charging that the phone thinks its on versus how you're actually doing it could play a difference. if i recall usb can only charge maximum .5A, while on AC it can go up to 1A or higher. So if the phone thinks its on USB, it may artificially limit the charge so it takes even longer.
I just decided to go back to the regular samsung charger, it seemed a tiny bit faster. still dont understand why samsung didn't give us a 1A charger

littleasian said:
well the type of charging that the phone thinks its on versus how you're actually doing it could play a difference. if i recall usb can only charge maximum .5A, while on AC it can go up to 1A or higher. So if the phone thinks its on USB, it may artificially limit the charge so it takes even longer.
I just decided to go back to the regular samsung charger, it seemed a tiny bit faster. still dont understand why samsung didn't give us a 1A charger
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Yes, the USB standard provides 500mA per port, but most charging ports short the data +/- pins which allows the device to enter dedicated charging port mode. This can allow for up to 1.8A, though most are capped at somewhere around half of that.
If the D+/- pins are not shorted the device will assume a data connection and will default to 500mA for charging. This could also be why some people are seeing that their phone will display options to mount drives when plugged into charger.

Battlehymn said:
Yes, the USB standard provides 500mA per port, but most charging ports short the data +/- pins which allows the device to enter dedicated charging port mode. This can allow for up to 1.8A, though most are capped at somewhere around half of that.
If the D+/- pins are not shorted the device will assume a data connection and will default to 500mA for charging. This could also be why some people are seeing that their phone will display options to mount drives when plugged into charger.
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This is actually very insightful and makes perfect sense. Because Apple uses resistors to set voltages across D+/- pins, the phone won't recognize the wall charger as what it is and will only pull the 500mA that it thinks the "USB port" can provide.

[Q] Voltage on unofficial micro USB charger

My GF ran over my mains charger cable with the vacum cleanerr at the weekend, so i ordered i new one from Ebay. Rather stupidly (as an "official" one would only be £1 more), i bought this unbranded one:
UK MAINS CHARGER FOR SAMSUNG i5700 i9000 GALAXY S on eBay (end time 02-Apr-11 14:51:41 BST)
When it arrived i noticed that the output is different: 5.5v 500ma as opposed to 5v 700ma from the one that came with the phone.
I know tha ampage will affect charging speed, but am concerned about the extra 0.5 voltage. Is this safe to use?

I'm curious about this too... I thought the "U" in USB meant Universal.
I just ordered 2 micro USB chargers from Ebay for my GF's Sony Vivaz Pro and my Captivate... neither work.
Her's doesn't recognize the charger at all... mine beeps and says "charging", but the battery level never goes up.
My chargers are 5v 500mA.
The chargers were listed as Blackberry chargers, but had a long list of compatible phones underneath (none matched our phones, to be fair.)
Now I'm afraid to buy any more generic chargers....

I don't know if the output voltage is part of the USB standard or not. I know that computers output 5v and it seems like a lot of phone chargers also do. However, i've seen some external battery chargers listed as compatible with the SGS listed as 5.2v, so maybe theres an accepted voltage range? Does anyone know for sure if a 5.5v is acceptable?
I'm not sure why the ones you have don't work as the specs seem right,possibly they are faulty?

paddyb said:
I don't know if the output voltage is part of the USB standard or not. I know that computers output 5v and it seems like a lot of phone chargers also do. However, i've seen some external battery chargers listed as compatible with the SGS listed as 5.2v, so maybe theres an accepted voltage range? Does anyone know for sure if a 5.5v is acceptable?
I'm not sure why the ones you have don't work as the specs seem right,possibly they are faulty?
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Yeah, I'm not sure. I certainly thought so, even though it seemed pretty "unlucky" they both might be faulty.
I did ask the seller, and they claim they are NOT compatible with my phones, but I just don't get it. They're offering me a refund, but at $4 each it's hardly worth my time mailing them.
I found some forums online of a small handful of people like me with chargers that won't work. It seems people with this issue were using 500mA chargers, and anyone using a 700 or 1000 had no problems. This wasn't necessarily because all phones either require 500 or 1000.... Someone also said it's only very certain phones that are built this way. That they require newer, or more powerful chargers... but that it's not the case with all new phones/smartphones.
But there were others who said 500 should charge it, just more slowly.
I still think Micro usb is Micro usb, period. That's why the EU (and here) have been looking at making these chargers universal. I think I'll just try my luck again with another charger.

You could try this one, which claims to be (and looks like), an official SGS charger:
http://cgi.ebay.co.uk/Samsung-i9000...ories_MobilePhoneChargers&hash=item2c5b2d355a

5.5V is supported. I've tested a very wide range of chargers for my SGS and all worked.
The voltage range of these chargers is 4.8V - 5.6V and all worked just fine.

I've actually got an original Nokia USB charger which is declared at 5.0v/550mA and it works like a charm...
Model is AC-6E:
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Well finally decided to give the ebay charger a go. Plugged it in, a green light lit up and plugged the phone in. The phone didn't recognise the charger, no indication the the notification bar that the battery was charging. Unplugged it and and tried again, and now the light on the charger doesn't even come on! Won't be using it again.

Another question on the topic : Is it save to use charger with higher Amperage ?
I mean original samsung one is 0.7A, could something go wrong if I´ll use 1.0A charger? Thanks
EDIT : Answer no needed anymore - found it in another topic. It should be safe

I believe any microUSB charger will be safe. Ideally, you want the highest voltage and highest current possible.
I've heard that the phone will use the data lines to tell the USB charger what voltage to set. This ensures voltage compatibility. Then the phone itself regulates the current.. it will only draw as many amps as it needs. So if the PSU can handle 2A, your device may only draw 0.725a for example, but it's safe. You want a high current one to ensure the phone has all it can take.
BTW, I'm not an EE person, so double check what I said.

I fear it's not that simple, especially with dumb chargers that can't negotiate current using the USB protocol, and instead may short the data lines, in various ways, instead to tell the device what current to draw...
Sent from my GT-I9000 using xda premium

There's an explanation here of why different chargers do indeed make a difference:
http://en.wikipedia.org/wiki/Usb#Power
see in particular the note on the Battery Charger Spec.
In particular. my own testing shows I can go from 500ma to 700mA charging current simply by changing a small connector in line between the 7Ahr battery I'm using to charge the phone, and the phone. That's due to the nature of the short on the data pins.
There are proprietary tweaks to this mechanism; e.g. iPhones use voltage signalling between the two data lines and ground to indicate various things to the device.
All of this is only for "hosts", i.e. chargers etc, that don't implement the USB protocol and so can't engage in the normal current negotation that occurs when connecting e.g. the device to a PC.

Would i **** it up pluging a 5.8 volts solar charger on my phone?

projeto56 said:
Would i **** it up pluging a 5.8 volts solar charger on my phone?
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It's a bit too high.
You have to know that slow charge = long battery life and fast charge = more battery drain after a couple of years maybe months

HdX75 said:
It's a bit too high.
You have to know that slow charge = long battery life and fast charge = more battery drain after a couple of years maybe months
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So usb charging is better then wall charging with original charger? because i noticed that my phone hold it`s charge better if i use the wall charger.

Pezmet said:
So usb charging is better then wall charging with original charger? because i noticed that my phone hold it`s charge better if i use the wall charger.
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Maybe because the current is higher. My battery voltage is arround 4200mV at 100% and 4100mV with USB
For the solar charger 5.8 is really high but the wall charger is ok

guys can anyone tell me what would be the reason that my Samsung j7 prime charger is giving me 4.63v instead of 5v .. the rating is 5v on the charger. is that possible the ic or some other thing is damaged? in that case what would be solution?

Battery charging rate

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
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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.
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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.
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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
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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]
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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.
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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]
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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%?

Fast Charging "Homemade". What are the risks?

I lost my original Fast Charger in my school and now I'm without one. The problem is, that sometimes I need that great feature.
My question is, can I disassembly a random 9V charger and "adapt" a Micro-USB cable to it? Since the GS6 supports 9V I don't see a problem there. Or must I short some data pins in order to enable fast charging to not fry the device?

Why don't you just buy a new one?

I definitely think that's not a good idea. Buy a new one. If you are worried about Samsung charger price you can buy a cheaper charger that support Qualcomm 2.0 quickcharge, it's compatible.

I thought the whole thing was dynamic, that at lower battery levels it charges at different amperage than higher levels, and at a certain point it kicks over to 5V. It doesn't charge at 9V the whole time.
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app

@quarlow is right, it's dynamic.
You should buy a new one, much more safe.

If I plug a normal 'old' 600mA 5V charger to it, it says that it will charge in 6 HOURS! I can't wait for that.
I have disassembled the charger, unsolded the Female USB plug and solded it to an 9V charger from an TP-Link Switch.
I plugged it in and the phone started charging. It says "Cable charging" instead of "Fast charging" and it stated 6 hours too. After that, I shorted the data pins and then the time reduced to 2 hours...
I also tried a 12V charger (1.5A), but it don't charged, nor maked any charging sound.
Now I concluded two things:
1. Samsung S6 phones are very robust with charger voltages :silly:
2. It isn't that easy to make a fast charger.
I hope I have saved some questions now
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Thanks for all the replies, but now I haven't money to buy one. Where I live, they are really expensive!
Oh, aaand, I don't know if it's a good idea to charge at 9V the whole time, because when it reaches 100%, I hear constantly the charging sound.

Looking at a Samsung Travel Adapter change...
https://www.dropbox.com/s/54xt2u315nn1tkt/2015-09-27 14.04.18-1.jpg?dl=0
Output is: 9v at 1.67A, or 5v at 2.0A. It's listed as an adaptive charger.

numloxx1978 said:
Output is: 9v at 1.67A
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Click to collapse
Thanks, I will search for an 9V charger that has this amperage.
Btw, some chargers have adaptive 12V output.... Is that QuickCharge 3.0?

A normal Samsung or LG charger of 1.8A/2A output still charge my S6 in about 1.5 hours. Get one from a relative or friend or buy one if the S6 charger is too costly

Fullmetal Jun said:
Get one from a relative or friend or buy one if the S6 charger is too costly
Click to expand...
Click to collapse
I tried already. These options are not available
:silly:

Info
Fusseldieb said:
I lost my original Fast Charger in my school and now I'm without one. The problem is, that sometimes I need that great feature.
My question is, can I disassembly a random 9V charger and "adapt" a Micro-USB cable to it? Since the GS6 supports 9V I don't see a problem there. Or must I short some data pins in order to enable fast charging to not fry the device?
Click to expand...
Click to collapse
the factory charger got in fire sometimes i don know abt home-made chargers... take care dude

You gotta be kidding. Spend $10 and get a QuickCharge 2.0 adapter.
Don't risk it. Samsung Fast Charge is the same thing as Qualcomm Quick Charge. It's Qualcomm's technology, licensed with no loyalty fee.
QuickCharge 2.0 uses the data pins to negotiate the charge voltage with your power adapter. Otherwise it just uses 5V.
I see on my S6 it stays at 9V all the time. The phone pulls the current it needs, so you don't have to try to match that current on the power adapter side. Just make sure it's at least 1.6A, preferably 2A. I never saw my S6 pulling 2A at 5V or 9V.

I'd imagen as this a form for devs . And this guy is trying to create somthing . The devs would be a bit more yaknow . Creative. First off
The guy is trying to make the adaptive charger .give him a bit of credit . I'm currently making a portable charger and I want it to use samsung fast charge
I'm using 18650 battery's 4.2 volts fully charged 3.7 volts give or take when they sag.
So if there is anyone with half a brain out there. How do you get the 9v (8.4) amp to make it a fast charger ( under one and a half hours. ) I'll worry about building the switch to the 5 volts after ( 4.2)
Is it loop the pins . Pin to earth pin to positive loop pins to negative ) the information isn't out there so surely some one has the information. ( just FYI the sgs6 is perfectly capable of being charged at 9 volts. The battery is a nine volt according to the build information explains why charging with any other charger takes 6 hours. .
Also to the op if you did indeed have a similar idea to me just tell erm straight I wanna mess about with low current and voltage dc haha. ( also I tried 18 volts samsung phones do no alow the charge over 9volts so it cannot hurt you're phone

Question regarding charging behavior on my SM-P905V

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