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Is my charger not working 100%efficient?

I have N9005 MJ7 rooted
iam using galaxy charging current pro, to measure my charger output, but with my phone gives only 1200mah, while our charger should gives 2000mah, iam using the original charger and cable which came with the mobile
is it normal, does anyone got a better score? which apps do u use?
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thermax04 said:
I have N9005 MJ7 rooted
iam using galaxy charging current pro, to measure my charger output, but with my phone gives only 1200mah, while our charger should gives 2000mah, iam using the original charger and cable which came with the mobile
is it normal, does anyone got a better score? which apps do u use?
Click to expand...
Click to collapse
i get that as well dont think charging current pro is compatible with note 3 so dont worry about it :silly:

thermax04 said:
I have N9005 MJ7 rooted
iam using galaxy charging current pro, to measure my charger output, but with my phone gives only 1200mah, while our charger should gives 2000mah, iam using the original charger and cable which came with the mobile
is it normal, does anyone got a better score? which apps do u use?
Click to expand...
Click to collapse
That app is OK and probably your charger is also OK - the circuit that controls charging is probably limiting the current in order to keep it safe (for instance if it is too warm it might use an even lover current). Also the current is optimized as to be different at different levels of the battery capacity.
That being said I am always charging over night with a safe USB port - that way the current is 500mA max and the battery life is maximized, while I still get a completely full battery in the morning.

xclub_101 said:
That app is OK and probably your charger is also OK - the circuit that controls charging is probably limiting the current in order to keep it safe (for instance if it is too warm it might use an even lover current). Also the current is optimized as to be different at different levels of the battery capacity.
That being said I am always charging over night with a safe USB port - that way the current is 500mA max and the battery life is maximized, while I still get a completely full battery in the morning.
Click to expand...
Click to collapse
I have a friend who has a 3 month S4, he used to leave the battery charging over night also, and the battery swollen and life daily use decreased to less than a day in 3 month use only!!!

jaythenut said:
i get that as well dont think charging current pro is compatible with note 3 so dont worry about it :silly:
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Click to collapse
did u try any other apps?
why Maximum result is not showing?

thermax04 said:
did u try any other apps?
why Maximum result is not showing?
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Click to collapse
Na just not bothered it charges fast so I'm happy :silly:

thermax04 said:
I have a friend who has a 3 month S4, he used to leave the battery charging over night also, and the battery swollen and life daily use decreased to less than a day in 3 month use only!!!
Click to expand...
Click to collapse
Yes, but:
- the S4 does not have the same charging algorithm as the Note3
- he was probably charging the S4 (which has different battery, charger and algorithm) at 1000 mAh or so (which was the most important point I was making, the 500 mAh are not 2x safer, are probably 4 to 8x safer, probably 20x safer than 2000mAh, that is not a linear thing)
- I think the S4 batteries had a certain defective batch (the media spoke at some point about it)
- there will always be a certain very small percentage of batteries that WILL go bad "no matter what", but that is usually exceedingly small if the charge process is done correctly.

Z3C Battery Charging Thread

Hiya,
I' hoping this is the right section to post this in.
I don't have my Z3C yet, but I've been searching for information on charging speed, charging current etc. - and there is barely anything to be found. What seems to be consent: A full charge (0-100%) takes about three hours. But then, some people say an almost full charge (0-90%) takes much less, as charging current is greatly reduced for the last 10% to reduce stress on the battery. Sony itself also claims that a small charge (something like 0-10%) should be quite fast as well.
Then there's some speculation about QuickCharge 2.0 being used or not used, that you could use a Motorola 2.0A charger to charge it faster than with the provided 1.5A Sony charger etc., which also brings up the question which resistor values on the D+ and D- wires are necessary to toggle different charging currents. (Or I might be stupid and there's a standard for that by now, which is the same for all Qualcomm devices.)
To cut it short: I'd request those who have a Z3C to post some comments about their charging times, and at best even their charging currents. I used an app called BatteryMonitor on my Desire HD, I'm sure there's others around now that give the same information. If someone could try out different chargers and record charging current over time, maybe even with a pretty graph, it'd surely help all future discussions about chargers, docks, modifications, DIY charging issues etc.
[EDIT] I've created a similar thread over at the Z3 forums, as many things (such as resistor values and charging tactics) should be similar.

With the 1.5A charger it's almost the same speed as other flagships: about 1% per minute or so.
For quick charge, Qualcomm explains it here: https://www.qualcomm.com/news/snapdragon/2014/06/04/quick-charge-20-has-arrived
Because it's more difficult for me to get the Moto Turbo Charger from where I live, I ordered another quick charger on the list and will see how it works.
Hope I will have time to report soon.

munkustrap said:
With the 1.5A charger it's almost the same speed as other flagships: about 1% per minute or so.
For quick charge, Qualcomm explains it here: https://www.qualcomm.com/news/snapdragon/2014/06/04/quick-charge-20-has-arrived
Because it's more difficult for me to get the Moto Turbo Charger from where I live, I ordered another quick charger on the list and will see how it works.
Hope I will have time to report soon.
Click to expand...
Click to collapse
hello man.. any news for the quick charger 2.0? im very interesting of buy the moto turbo charger.. but im waiting some reviews..

sh4d0wf0x said:
hello man.. any news for the quick charger 2.0? im very interesting of buy the moto turbo charger.. but im waiting some reviews..
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Sorry for the delay. It's obvious that QC 2.0 works only when battery is really low. Not sure it's Sony's control thru hardware, or kernel, or charger's control.
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M8 with same Quick Charge 2.0 charger.

munkustrap said:
With the 1.5A charger it's almost the same speed as other flagships: about 1% per minute or so.
For quick charge, Qualcomm explains it here: https://www.qualcomm.com/news/snapdragon/2014/06/04/quick-charge-20-has-arrived
Because it's more difficult for me to get the Moto Turbo Charger from where I live, I ordered another quick charger on the list and will see how it works.
Hope I will have time to report soon.
Click to expand...
Click to collapse
The charger itself

munkustrap said:
Sorry for the delay. It's obvious that QC 2.0 works only when battery is really low. Not sure it's Sony's control thru hardware, or kernel, or charger's control.
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that was really fast!!! almost 70% of charge in an hour!! :laugh::laugh::laugh: i cant wait for my qc 2.0 charger tooo!!
do you think if will work QC 2.0 with the magnetic cable?

sh4d0wf0x said:
that was really fast!!! almost 70% of charge in an hour!! :laugh::laugh::laugh: i cant wait for my qc 2.0 charger tooo!!
do you think if will work QC 2.0 with the magnetic cable?
Click to expand...
Click to collapse
My Galaxy Note charger + magnetic dock charges pretty fast.

In europe (France), i can't a site for buying one :s Can anyone help me please?

Equipment used:
Remax Quick Charge and Data Cable for Micro USB.
Romoss AC12 iCharger 12 10.5W 5V 2.1A Fast Charge Adapter.
Is the quick charge working or not?
Please help I don't understand the readings.
Thank you.

Last Screen shot
Sent from my D5833 using XDA Free mobile app

I fried my Nexus 7

I was doing a car install of my Nexus because I wasn't really using it for anything else. I wanted a good power source so I could avoid the charging issues people were running to, so I went with a DC-DC converter instead of a cigarette lighter adapter. I used the same converter that many others have used, and dialed it in to the correct voltage output and wired it up to my USB-OTG Y cable. I plugged it into my tablet to test, and the system immediately shut down and got really, really hot. After I unplugged it and let it cool off, I was able to boot the tablet, but it no longer charged anymore from the wall socket adapter. I woke up to a dead tablet and started troubleshooting. I was tracing the power circuit and was seeing 5V everywhere except for at the battery connector. (Battery tested fine at 3.7V). After removing the metal shield inside the tablet I found this:
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Needless to say, the thing is toast. I wish I knew what happened, but I don't. Everything appeared to be setup correctly. I'd like to blame the converter for being a POS, but maybe I did something wrong, who knows. Any one have any thoughts as to what could have happened?

Not phones...but years ago I fried 2 AMD processors because I forgot to plug the fan connector to the motherboard header.

Dumb question, but in addition to the voltage, were you also mindful of the current and ensuring that the power source was outputting no more than 2.0 amps? Sure, a device will only pull the current that it needs in theory, but if you don't have surge protection, then the power spike that may occur as soon as you complete the circuit could fry stuff, especially if the surge is higher than what the device is rated to handle.

rtiangha said:
Dumb question, but in addition to the voltage, were you also mindful of the current and ensuring that the power source was outputting no more than 2.0 amps? Sure, a device will only pull the current that it needs in theory, but if you don't have surge protection, then the power spike that may occur as soon as you complete the circuit could fry stuff, especially if the surge is higher than what the device is rated to handle.
Click to expand...
Click to collapse
This could have been my problem. The power supply I used was rated for 8 amps because I wanted to make sure I had enough power available for my devices on my USB hub (which also got fried in this process). I've already ordered a replacement motherboard for the nexus, but I am sticking to a regular cigarette lighter adapter this time!

Well, in theory it should have been fine unless there was a current spike and the converter couldn't handle it and passed the surge along. But also, was your output voltage set to 5V? A car battery spits out 12.6V or so and while there's usually some wiggle room when it comes to current, there definitely is not when it comes to voltage.
Also, what kind of converter did you use? I'd love to read up on it, just for curiosity's sake.

Sad. It will be OK in a few years. I've been there. We've all been there. It's part of being a true hacker.

rtiangha said:
Well, in theory it should have been fine unless there was a current spike and the converter couldn't handle it and passed the surge along. But also, was your output voltage set to 5V? A car battery spits out 12.6V or so and while there's usually some wiggle room when it comes to current, there definitely is not when it comes to voltage.
Also, what kind of converter did you use? I'd love to read up on it, just for curiosity's sake.
Click to expand...
Click to collapse
This is the converter I was using. I had it dialed into 5V according to my meter.
http://www.amazon.com/gp/product/B00OT58TL4/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
As an update, I ended up buying a new motherboard on ebay and switched to a cigarette lighter adapter with a max output of 4 amps. Everything is working great now! Its cool having a tablet in the car.

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Samsung Galaxy A7 (2018) can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

From 8% to 100% mine takes an hour more or less

Now this is interesting.
I am using usb power meter alongside the supplied charger and cable in the box and I found that even after the phone showed 100% charge it continued to draw current (~300mAh) for another 20 minutes until stopped entirely.
So my total charge time from 0-100% was 2 hours and 44 minutes.
Also for the first ~60% charge the phone draw the full 1.55 amperes and after that gradually dropped down to 0.50 amperes.
While the charger runs little bit hot the phone was cold the entire time.

2 hours to charge from 15% to 42 %
too long

This is way too much. You have probably got defective charger/cable.
But! If you are trying to charge it from a pc then is normal as regular usb ports supply only 0.5A instead of the 1.55A from the original charger.

I just realize charger is defective
Should i fix it or buy new one
Idk if its the cable or adapter

Nowadays chargers are basic inverters with few more stuff.
They have very few components inside but sometimes, usually after hard hitting/dropping on hard surfaces the soldering can get damaged with varying consequence between simply stopping working to working abnormally as lowering voltage, current, overloading and many other things.
For example I had a strange case with fully working charger with healthy components and solder joints but was working on random intervals. It was caused by solder whiskers touching nearby naked track and causing shorts. If it was cheaper charger it would blow, but in this one the overvolt protection was able to save it.
And this is why you can just buy usb power tester like this one
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or even simpler like this one
so that you can check what kind of power your phone actually receive from charger/power bank/pc etc.
Our phone does not have fast charge. As such it will not charge faster no matter how powerful charger and cable you can equip it with. For example I have one with 2x2.4 Amperes supporting QC charger mods and etc. - it will draw only up to 1.55 Amperes within 5 Volts range.
The normal USB 2.0 port can supply with max 0.5 Amperes, USB 3.0 within the basic implementation can supply under 1 Ampere.
In simple language this means with usb 2 it would take up to 8 hours to charge from 0 to 100%, with usb 3 it would take about 4 hours and half from 0 to 100% battery.
Of course depending on the manufacturers you can find usb 3 and 3.1 ports that are able to supply way more current, even values like 3 Amperes and higher.
This is why the best way to charge your phone is to use the supplied charger. The cable is also very important because of the current depending on the used wire gauge.
With cheap cable (using thin wires) you would not only be unable to use the available current, you can find yourself in the middle of fire.
But there is a big problem, the price sometimes doesn`t represent the needed quality.
Notice I`m not talking about durability. I can show you cables strong enough to endure 10 kilograms but with so thin wires that can`t carry over 0,5A trough them.
Put your trust only on products that are widely commented and tested by the buyers.
Now, I have tested the cable supplied with the phone. Although it easily handles the 1.55A current used by the phone if you put over 2A it will get really, really warm. This means the wires are big enough but are not expected to handle high current. In simple words don`t use this cable for other things than charging this phone, just to be safe.
=====================================
TLDR;
If you don`t have the necessary skills don`t try to repair it. Any repair error can easily make it burst in flames. Better try with another charger but make sure it can get you at least 1.5A otherwise it would take really long time to charge.

Is there a fast charger available for this phone??

blake .l said:
Is there a fast charger available for this phone??
Click to expand...
Click to collapse
yes, I recommend oppo charger. In just 2hrs the batt will be full.

Is there a way to charge faster? In my case I can charge my phone maximally at 5.19V / 1.42A. Charging from 0% to 100% phone with such parameters takes more than 3 hours, because amperage is adaptive.

kamil79123 said:
Is there a way to charge faster? In my case I can charge my phone maximally at 5.19V / 1.42A. Charging from 0% to 100% phone with such parameters takes more than 3 hours, because amperage is adaptive.
Click to expand...
Click to collapse
try to use oppo chargers

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Redmi Note 8 Pro can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

Can anybody please confirm that the phone does support the QC 4+ and not only QC 3.0 by testing charge with different chargers ?

marc2800 said:
Can anybody please confirm that the phone does support the QC 4+ and not only QC 3.0 by testing charge with different chargers ?
Click to expand...
Click to collapse
Xiaomi said RN8 Pro support QC 4+

Neverhopless said:
Xiaomi said RN8 Pro support QC 4+
Click to expand...
Click to collapse
Yes they said that. But some articles said only QC 3.0 is supported

marc2800 said:
Yes they said that. But some articles said only QC 3.0 is supported
Click to expand...
Click to collapse
You prefer to trust Xiaomi itself who made this device or other articles who said Xiaomi lie about charging speed and some articles said it support QC 4+

I just measured the time ,and about 2hours is needed to fully charged phone
---------- Post added at 12:22 AM ---------- Previous post was at 12:21 AM ----------
With 18w charger

tze_vitamin said:
I just measured the time ,and about 2hours is needed to fully charged phone
---------- Post added at 12:22 AM ---------- Previous post was at 12:21 AM ----------
With 18w charger
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it's too much time considering the fast charger

AlphaBravo said:
it's too much time considering the fast charger
Click to expand...
Click to collapse
it took less than an hour for me from something below 30% to 99%.
edit: i can provide a gsam battery image if you like to.

I know..but his is how it is..

Note 8 pro does supports 18W fast charger. The charging speed is pretty good for me.

https://www.xda-developers.com/redmi-note-8-pro-teardown-confirms-quick-charge-3-0-support/

I did a test with my device. So at 4% battery, I put it in airplane mode. I used a 30W charger, with a USB Tip C - USB Tip C ports. It took 107 minutes to fully charge. Until 80%, the charging speed was about 13% per 10 minutes. After reaching 80%, the charging speed decreased. The phone reached 81% in 60 minutes. I logged the battery percentage and charging speed percentage every 10 minutes, and I included in a excel graphic. I attach this file. Maybe someone more tech savvy can understand more about the inner mechanism and if it is QC 3.0, 4.0 or whatever.
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good

I have a QC4+ charger and a usb power monitor and it only shows QC3.0 on it`s display as the charging method on my 8pro.

I found it funny that using an old 10w charger takes about 15 minutes more to charge my device.
I keep using the old one as it produces less heat, and theoretically should prolong battery life.

Average charging speed with the fast charger provided with it, is 1 point rise per minute.

Which app is preferred to measure the current speed specially in Watts?