Database Users

[Q] cheap battery questions

Hello,
i ve been searching for a way to extend the autonomy on the a501.
do you think i can use a cheap 12V lithium battery to charge it or take over when the internal battery is depleted ?
i m not very knowledgeable in electronics, i wouldnt want to damage the internal battery.
there seem to be very few commercial products that would fit this tablet and i m not really interested. i dont have 50$ for a +2h battery life --;
i was thinking of buying a 12V 5000mAh something battery from china and solder the appropriate DC connector on it, but im wondering if there are issues like, the Current needs to be stable at 1,5A or i might reduce the internal battery durability, things like that.
can anyone answer that ?

It's more complicated than that. The power supply probably has a circuit to regulate the flow of energy to the tablet, perhaps the tablet itself also has a circuit that works together, I don't know.
Short answer: buy a second power adapter

There are backup battery/chargers. Scosche goBAT for example.
Just Google around to find the best fit for you.

GullyFoyle said:
There are backup battery/chargers. Scosche goBAT for example.
Just Google around to find the best fit for you.
Click to expand...
Click to collapse
How would that work? Does the goBAT include a charging tip compatible with the A500?

Hello,
thanks for dropping by
its not helping really this is bs
power cat you say "probably" regulates the current. yes that is what i wrote that is what i hoped someone would clear up for me. i dont see how buying another wall charger is going to help me extend the tablet autonomy i would just as well carry the original one around.
gullyfoyle same sideways reading of the OP i would not pay 80$ for a marketed battery/charger.
i hope there are still people out there who can give an educated answer :/
this guy for example http://www.youtube.com/watch?v=LqxhEkDGkbg he says he learned it the hard way (bricked his phone?) because he put 4x(1.5V?) batteries to charge his iphone without the resistors (to get the voltage from 6V down to 5V?)
so there again, can there be issues with the discharge current rate or is it something about lithium batteries behaving differently from alkaline ones ?
i think i ll go ahead and try anyway. worst case scenario the battery will just sit there not putting out anything.

Why wouldn't you pay $80 for a backup battery charger. It was just an example. I'm sure you can find one cheaper after Black Friday, or even with a bit of Googlefu.
We aren't talking about normal chargers but portable charge devices.
http://www.scosche.com/consumer-tech/product/2073
For anyone in need of extra power, the goBAT II provides an innovative solution to the dreaded ‘low battery’ warning. The goBAT II is a powerful backup battery and dual port charger for your mobile devices. The internal 5000mAh ion battery will keep your devices going long after they normally would.
Advantages and Applications
A drained iPhone 4 can be charged 2.6 times with a fully charged goBAT II. An iPad can be charged up to 55% of full charge. This is the ideal battery for long commutes, airport travel and camping.
The goBAT II provides 2 USB charging ports that can be used at the same time. A 2.1 Amp port gives you the ability to charge mobile devices including tablets (iPad and Samsung Galaxy Tab). An additional 1.0 Amp port lets you charge your additional devices (iPhone, iPod, etc.).
Click to expand...
Click to collapse
Remember this is JUST AN EXAMPLE. The idea is to show these devices exist and are available for purchase.
http://www.engadget.com/2011/02/23/scosches-gobat-ii-portable-battery-pack-handles-two-usb-devices/
We'll just keep it real simple for you: the object you're looking at above is the Revive II charger, but slimmer, and with a rechargeable battery pack thrown in rather than a wall / cigarette adapter. Got it? Good. The goBAT II contains a 5000mAh rechargeable lithium ion battery, and it offers a pair of USB ports for charging. One's a 10-watt (2.1 Amp) port capable of handling high-maintenance devices like Apple's iPad, while the other is a more conventional 5-watt (1 Amp) socket. Scosche is also throwing in a USB adapter for the Galaxy Tab, theoretically letting those with divided households charge both an iOS and Android tablet at the same time. Brain melting, we know. It also works with the company's Revive charging app, which indicates how long a device will take to charge on any of Scosche's chargers and can also be configured to send an email notification once a device has been fully charged. She's all yours down at the source link for $89.99
Click to expand...
Click to collapse
See, others deem it "BRAIN MELTING".
And the cost of that type of thrill is reasonable, for the job it does.
But I can understand how someone would encourage another person to experiment with the guts of electronics they don't fully understand. Screw it up and you can always buy a new one.
Then again, you could buy three or four Gobats and save all the fuss and bother.

mr.bryce said:
Hello,
thanks for dropping by
its not helping really this is bs
power cat you say "probably" regulates the current. yes that is what i wrote that is what i hoped someone would clear up for me. i dont see how buying another wall charger is going to help me extend the tablet autonomy i would just as well carry the original one around.
gullyfoyle same sideways reading of the OP i would not pay 80$ for a marketed battery/charger.
i hope there are still people out there who can give an educated answer :/
this guy for example http://www.youtube.com/watch?v=LqxhEkDGkbg he says he learned it the hard way (bricked his phone?) because he put 4x(1.5V?) batteries to charge his iphone without the resistors (to get the voltage from 6V down to 5V?)
so there again, can there be issues with the discharge current rate or is it something about lithium batteries behaving differently from alkaline ones ?
i think i ll go ahead and try anyway. worst case scenario the battery will just sit there not putting out anything.
Click to expand...
Click to collapse
You will break your tablet.
The charger contains a complex integrated circuit. Sticking on a few resistors isn't gonna do ****.
Look at this for example, a simple wind generator has a complex charging circuit to regulare all the power:
http://www.instructables.com/id/How...nd-turbine/step8/Build-the-charge-controller/
Just google "how to make a charge controller" it's really not as simple as you think.
Quote from the site:
The general principal behind the controller is that it monitors the voltage of the battery(s) in your system and either sends power from the turbine into the batteries to recharge them, or dumps the power from the turbine into a secondary load if the batteries are fully charged (to prevent over-charging and destroying the batteries).

ok thanks ^^
now i understand that part
Short answer: buy a second power adapter
Click to expand...
Click to collapse
you are saying the overcharge controller (and other safety features) are all in the wall charger and are not integrated in the tablet.
so if i really really wanted to try i could plug any battery between 12 and 24V to this little guy couldnt i ?
http://www.ebay.ca/itm/220826123824#ht_3149wt_1163

As far as I know...as long as the voltage is correct (eg 12 volts) and the power adapter can produce the required amperage (1.5A) then the tablet will only take the current it can use.
So even if the power adapter is capable of producing 10A say, it doesn't mean it's forcing the 10A onto whatever is connected to it. If you use 1.5A (and if there was a way to connect multiple devices to it) you would still have 8.5A of current you could still take.
Oh the charge regulator would not be in the power adapter, that would be a very stupid design. It would be in the tablet it self to regulate how much charge it requires. I don't know of any power adapter that takes feedback from what it's charging to regulate the current.
It's the same with laptops, that's why you can buy universal laptop chargers when the one you have breaks, you just need to make sure it can supply enough amperage to power your device.
The power adapter is just a simple device that converts 110-240v 50/60hz voltage to 12v and upto whatever amperage it is designed for.
Power plugs in the house are designed at 110-240v to a maximum of 2400W (so ~20a for 110v and 10a for 240v) do you think whatever you plug into it uses up 2400W of electricity at once? No, it just takes what it is required (amperage), that's why you can plug a power strip with like 2-10 additional plugs without any problems unless if try to take more than 2400W in total.
Basic high school physics should of taught people this.

first sensible answer i get thank you daemos i m just not gonna take any chances considering the lithium technology and the fact they could use a "stupid design" for shorter gadget lifespan. if anyone has ever modded a car charger i d love to read about it.

mr.bryce said:
first sensible answer i get thank you daemos i m just not gonna take any chances considering the lithium technology and the fact they could use a "stupid design" for shorter gadget lifespan. if anyone has ever modded a car charger i d love to read about it.
Click to expand...
Click to collapse
Lithium ion batteries must be charged at a very specific voltage. So all charging regulation mechanisms would need to be inside the tablet.
I'm pretty sure the ones inside the tablet are definately below 12V so anyone thinking that the AC adapter has any fancy mechanisms to detect feedback, and regulate charge and control the voltage given to the Li-ion cells is incorrect.

Is it safe to use one of THESE to charge or run the tablet?
They also have a 6800mAh ver.

WOW YOU MEN Complicate everything
SIMPLE EASY .. Look at the output voltage of the the power brick for the iconia.. the part that you plug into the wall..
got something that OUTPUTS 12V AT 1.5 AMPS and you are done.. the Li Batteries as in all LI BATTERIES HAVE THERE OWN charging regulators in them.
The reason for this is because if a Battery is drained to a low state it will GET HOT AND OVERHEAT.. NI-CD Batteries can take and handle this heat.. Li batteries become a mini bomb at these temps.. So the are self regulating.. This can be proven by getting a cordless drill hold the shaft from running.. the drill will heat up the battery the device will STOP FUNCTIONING.. Remove the battery and put it back in . it will work again..
Now with that said.. most Li devices say make sure you have 20% or more battery life before flashing and so on.. This is because the DEVICE WILL NOT RUN On the power port. the port only connects to the battery. and in some cases the display lighting.. My cell is this way. if i run the battery until its dead or using gps on it. it will drain the battery faster then it can charge . causing it to not work until you charge it for 5 minutes or so.. this would assume that using a external battery to charge it .. the external batteries themselves would need to be more then 12 volts and atleast double the amps.. then regulated to the 12v 1.5 amps . think of this like pooring water thru a funnel.. to maintain the 12v 1.5 amps. You can test my theory by taking the battery out of your cell phone and trying to run it just on the power adaptor only.. I KNOW MINE WILL NOT RUN.. however if it has older battery technology it will..

A Question About Device Charging

Alright this is sort of a strange question but I'm really curious and would like to know more. From my rudimentary understanding of electricity and how it flows, if I'm right, current flows from high amps to low amps? Okay assuming that's right, then in theory if you connected two USB devices, both with different amperage...wouldn't one of them end up losing power as the other one gains it, essentially charging it? Haha I could be compltelty wrong so if anyone has info I would love to know.
Sent from my SPH-L710 using xda app-developers app

Current flows from the higher potential (voltage) to the lower potential.
In any case, a USB port in host mode is supposed to supply current (yes, and voltage) to a peripheral.
A USB port in peripheral mode can accept the current from a host and even charge if there is sufficient current.
So, yes, one USB device could charge another.
In real life, most devices in host mode don't really supply enough current to make it worthwhile.
Chargers can supply 1.0 or 1.5 amperes.
Device host mode can usually supply around 100 mA, that is 0.1 amperes.

Quick Charge 3.0?

Hello,,
Some users posted information that the new galaxy phones will not support the Quick Charge 3.0 but only 2.0 :crying:
I contacted Qualcomm and Samsung and they both weren't able to provide me whether a conformation or denial about it.
So what do you think for those who like this feature? Will the new phones support it or not? because to me a phone with 3600mah should really have the Quick Charge 3.0.

the manual on page 12 says 2.0

Qualcomm s820 soc supports quick charge 3.0. Is it possible they have not activated that feature? Sure I geuss. Also they are offering more than one soc depending on your location. So the s820 won't be the chip for everyone.

I am only going by what the manual says. If Samsung put that in the manual then that's what it is unless they made a mistake with it, and then they should be able to clarify

Tidbits said:
I am only going by what the manual says. If Samsung put that in the manual then that's what it is unless they made a mistake with it, and then they should be able to clarify
Click to expand...
Click to collapse
It could be something that they will update or something in the kernel that can be modified by developers. I'm saying that the processor supports it. So it if they truly are only using version 2.0 it will most likely be enabled to 3.0 in the future.

If it does great. If it doesn't oh well.

There is a big chance that the new upcoming phones will support the QC 3.0 through an update.. the HTC A9 has a micro usb port and didn't support QC 3.0 until they release an update for it so I really hope Sammy will do that too for both of new phones!

wf-17 said:
Hello,,
Some users posted information that the new galaxy phones will not support the Quick Charge 3.0 but only 2.0 :crying:
I contacted Qualcomm and Samsung and they both weren't able to provide me whether a conformation or denial about it.
So what do you think for those who like this feature? Will the new phones support it or not? because to me a phone with 3600mah should really have the Quick Charge 3.0.
Click to expand...
Click to collapse
agree with you! Quick charge 3.0 will be much better.

https://www.qualcomm.com/news/snapd...-galaxy-s7-and-s7-edge-powered-snapdragon-820
To ensure that you’re spending less time plugged into a socket and more time enjoying your mobile experience, the Samsung Galaxy S7 is outfitted with Qualcomm Quick Charge 2.0: It fuels your device up to 75 percent faster than conventional charging.

I saw this on gsm arena. Another website mentioned the 83 percent charging in 30 minutes. So not sure what to believe.
http://m.gsmarena.com/samsung_galaxy_s7-7821.php

It's Quick Charge 2.0 only in S7:
"[Samsung] told PC Advisor at MWC2016 that it thinks Quick Charge 2.0 is fast enough"
http://www.pcadvisor.co.uk/review/a...msung-galaxy-s6-vs-samsung-galaxy-s7-3635467/

So it doesn't have QC3.0 and it doesn't sound like Samsung is committed to enabling it. Is it on the table for custom Roms? I know the processor supports it but does the rest of the hardware? I just got my aukey QC3.0 wall charger in the mail and even though it's QC2.0 backwards compatible, it'd be nice to put it to use.

Here is a listing on the Qualcomm site which lists devices supporting their technologies. The S7 showed up under a search list for QC2.0 and had a page outlining its (mostly Snapdragon-based) technologies:
https://www.qualcomm.com/products/snapdragon/smartphones/samsung-galaxy-s7-edge
At the bottom there is a bullet item claiming QC2.0 for 75% faster charging than non-QC devices...
It's odd, most of the documentation of QC3.0 focuses on more efficiency, but they don't make any direct comparisons of speed. In fact, one article even clarified that QC3.0 has the same max power as QC2.0 and the same target power flow and what it added was fine grained control over voltage and that it may help the speed of charging on lower voltage devices. So, it's a mixed message as to how much benefit it might provide a cell phone, the 0-83% figure I've seen quoted is often "a device went from ..." meaning they could have chosen the device that was least suited to QC2 for their benchmark and that device would be the one that would benefit most from QC3.0. But, in the end, maybe QC3 really didn't offer much real-world charging performance for the S7? Still, the greater efficiency due to having better control over voltage might have been a nice change even if the total speed wasn't that much better.

flarbear said:
Here is a listing on the Qualcomm site which lists devices supporting their technologies. The S7 showed up under a search list for QC2.0 and had a page outlining its (mostly Snapdragon-based) technologies:
https://www.qualcomm.com/products/snapdragon/smartphones/samsung-galaxy-s7-edge
At the bottom there is a bullet item claiming QC2.0 for 75% faster charging than non-QC devices...
It's odd, most of the documentation of QC3.0 focuses on more efficiency, but they don't make any direct comparisons of speed. In fact, one article even clarified that QC3.0 has the same max power as QC2.0 and the same target power flow and what it added was fine grained control over voltage and that it may help the speed of charging on lower voltage devices. So, it's a mixed message as to how much benefit it might provide a cell phone, the 0-83% figure I've seen quoted is often "a device went from ..." meaning they could have chosen the device that was least suited to QC2 for their benchmark and that device would be the one that would benefit most from QC3.0. But, in the end, maybe QC3 really didn't offer much real-world charging performance for the S7? Still, the greater efficiency due to having better control over voltage might have been a nice change even if the total speed wasn't that much better.
Click to expand...
Click to collapse
That is because QC3 doesn't improve the speed of charging at all. The only thing it does is make it more efficient.

markriveranig said:
That is because QC3 doesn't improve the speed of charging at all. The only thing it does is make it more efficient.
Click to expand...
Click to collapse
Despite what I said in my previous post, which was mostly speculation based on the loose wording I'd seen in a number of documents from Qualcomm, there are still a number of articles that claim it is faster due to its efficiency, but not by a wide margin. For instance:
http://blog.blitzwolf.com/what-is-qc-3-fast-charging-with-blitzwolf-chargers.html
(Note that the QC3 battery is only at 70% vs 62% for QC2 and both are super-imposed over what looks like a smartphone graphic)
http://www.androidpolice.com/2015/0...8-more-power-efficient-than-quick-charge-2-0/
(same graphic, the title claims 27% faster, but the graphic only shows it being 8% ahead at the 29 minute mark)
If you listen to the video in the Android Police link they only ever compare charging speed to QC1 and conventional charging and the 38% claim vs QC2 is of efficiency. For example, from their press release:
Qualcomm said:
Quick Charge 3.0 is engineered to refuel devices up to four times faster than conventional charging. It is designed to charge twice as fast as Quick Charge 1.0 and to be 38 percent more efficient than Quick Charge 2.0.
Click to expand...
Click to collapse
But, their video clearly shows that it is actually faster than QC2, it's just not 27% faster as claimed in the Android Police headline. Perhaps it might be 27% faster to 100% since the voltage step downs happen primarily at the tail end of the charge cycle and so the fine-grained voltage control will smooth that final charge level quite a bit. But getting a quick boost charge is not going to run into that since it can mainly happen at the maximum power where the existing fixed power levels of QC2 are close enough to optimal.
So maybe the video race shows what happens in real life when you aren't trying to get to 100%?

Why Dash? Why not Type-C to C?

It confuses me why a phone with a USB Type-C port would ship with a Type-A to C charging system. Beyond mere speculation, does anyone have information on why this was done? It doesn't make sense to me.
Also, has anyone tried a Nexus/Pixel type-c charger with the OP5? How are the charging speeds on those?
Thx

Because only a small number of users have computers and spare chargers with type-c ports? Even big brands do this: Apple uses a type a to lightning and Samsung type a to type c. This will change when type c is more common.
Regarding the charging speeds, Oneplus uses a proprietary technology, so it's only possible to charge at "dash" speeds using the original cable and charger. If you use other cable (or use the original cable, but not the charger) it will be 2 or 3 times slower. It all depends on the power output of charger you use.

S4turno said:
Because only a small number of users have computers and spare chargers with type-c ports? Even big brands do this: Apple uses a type a to lightning and Samsung type a to type c. This will change when type c is more common.
Regarding the charging speeds, Oneplus uses a proprietary technology, so it's only possible to charge at "dash" speeds using the original cable and charger. If you use other cable (or use the original cable, but not the charger) it will be 2 or 3 times slower. It all depends on the power output of charger you use.
Click to expand...
Click to collapse
I've read places that OnePlus moved the fast charging tech from the phone side to the charging brick side. This is what also allows the phone/battery not to heat up during charging. It don't think the phones could handle charging at these speeds without frying the phone (phone would fry an egg) if the tech was still inside the phone.

All I don't understand why cant we charge this phone with QC2/3 chargers as fast charge because the SoC needs to support it?
Sent from my ONEPLUS A5000 using Tapatalk

thefiqs said:
All I don't understand why cant we charge this phone with QC2/3 chargers as fast charge because the SoC needs to support it?
Sent from my ONEPLUS A5000 using Tapatalk
Click to expand...
Click to collapse
This is what really gets me. Lots of people have QuickCharge chargers from other phones over the years, and it's easily supported by the hardware OP uses.

Dash Charge and Quick Charge are different things. Each technology needs different hardware to work.
Quick Charge was created by Qualcomm and it's used by the best Android phones (Samsung, Nexus, Pixel, etc)... it's slower than Dash and manufacturers need to pay a fee to Qualcomm when they use their technology. We can find support on power banks, car chargers, usb hubs, computers, etc.
Dash Charge was created by OPPO, Oneplus parent company... I guess this and the need to save money are the two main reasons for them to use Dash over QC.
Dash is faster because it moves some hardware from the phone to the charger. This way the heat generated by the higher voltage and amperage is "stored" on the charger allowing the phone to receive more energy and charge faster. The downside is that it's almost impossible to find compatible power banks, usb cables, chargers, etc.
There is also some concerns from users about the battery life... Oneplus says there's no problem, but everyone knows that charging batteries very fast is bad for their lives... anyway, most of us don't keep the phone for more than 1 or 2 years.
Then there is the "normal" charging, used by Apple and by cheap phones and usually can go up to 5v ~ 2.4a. This is also what the OP3/3T/5 uses when we don't use the original cable+charger.
Apple for example cannot use QC because they make their own CPU and don't use Qualcomms chips. Samsung also have a different tech they use on phones running on a Exynos processor.
tl:dr:
Quick Charge: from Qualcomm, slower, the "smart" hardware is on the phone, hotter phone during charging, colder charger, way more popular;
Dash Charge: from OPPO, faster, the "smart" hardware is on the charger, colder phone during charging, hotter charger, only OPPO and Oneplus use it;
Normal charging: it's slower, there is no special hardware needed, works with everything;

Warning for fellow Note users.

Hello guys.Today i had my Redmi Note 3 Pro repaired , because a chip/module (that is responsible for charging) burnt down.
To avoid this:
1.Lower your charging rate (stock 2000 mAh).And yes , i was using stock rate.
2.Use only original charging adapter.And yes i was using charger and cable out of the box.
3.Try to avoid gaming while charging ,because the phone heats up so hard, especially screen.
I was using Resurrection Remix OS ,but im not saying it is responsible for this cause.
And here is some additional information from georgek1 on miui forums
For those who don't know here are some things about QC and Xiaomi Redmi series.
Quick Charge (QC) is a patented technology by Qualcomm (the company behind the Snapdragons processors) which allows phones to be charged faster. Quick Charge comes in 3 versions (time values are for a 4050mAh battery) :
v1.0, released 2013, using 2.0A -> full charge in 2.43 hours
v2.0, released 2015, using 3.6A -> full charge in 1.32 hours
v3.0, released 2016, using 4.0A -> full charge in 1.215 hours
* QC 2 has backward compatibility with QC 1 and QC 3 has backward compatibility with QC 2 and 1.
Redmi Note 3 currently implements QC 1 or a similar Xiaomi-made technology that charges phone in 2A.
Quick Charge (in general) implementation requires a few things:
A processor capable of Quick Charge technology
An extra electronic circuit on the mobile motherboard
A Quick Charge capable/compatible charger + a good cable
Drivers (software) on Android ROM kernel
A license fee that is paid for every device sold with Quick Charge technology enabled
The most important thing is #1, the processor as is the base (heart) of the system. Redmi Note 3 Pro with Snapdragon 650 supports Quick Charge 3.0 as the 650 snapdragon is capable of this technology. But let's see all the requirements:
Snapdragon 650 supports QC 3 = OK
Extra circuit on motherboard = UNKNOWN (probably yes)
QC charger and cable = NO
Drivers on kernel = NO
License fee paid = NO
* Some people say about batteries. QC doesn't require any special designed batteries. It works with all batteries on the market. That is it's goa,l to implement faster charging with current battery technology.
OK now, drivers are missing 100% and it has already confirmed by author or RADON kernel (@Umang96). His words:
this kernel at present does not use any charging driver hacks, I did try adding charging hacks in past but they did not work well and seemed ineffective, thats why I decided to keep charging drivers stock (same as xiaomi). We still get 1700-2000mA charging rate with stock charger which is good enough. Also, I don't recommend anyone to buy QC2.0/turbo/fast chargers, I use the stock charger and cable only.
Although QC has been originally enabled by @Umang96 in RADON kernel, he has later remove it. That makes me feel that QC 3 or 2 implementation in Redmi Note 3 is not possible due to software/kernel (#4) missing drivers or due to lack of the extra circuit required in hardware level (#2).
Why Redmi note doesn't have QC by default? Here is my guess:
The extra hardware circuit on motherboard may cost around $1
The QC charger will cost like more because it includes a) an extra circuit inside the charger $1 + b) license fee paid to Qualcomm for every charger $3
At least $3-5 fee for Qualcomm for every device sold with QC enabled.
That makes an extra $7-10 on factory level cost. An extra $10 for million devices is a big number. Also, that factory costs will lead to an extra $20 value on the consumer which makes the phone more expensive for its category.
Also my final guess is that Xiaomi wants extra things enabled for "Mi" (the good series) of phones in order to separate them from the cheaper "Redmi" series phones.
It would be very nice if QC-enabled processor phones which has QC disabled by factory, to have an option (like an application) which will allow users to pay the licensee fee and enable the QC option. I would be more than happy to pay $10 even $15 with my credit card to enable QC in my phone.
Click to expand...
Click to collapse
Have a good time using this budget masterpiece!

QC2 and QC3 are 9V 1.5A usually, there is no 3.6A or 4A.
Latest radon supports QC.
QC works but it's not properly slowing down with usage and instead going up, that's why your charging port got damaged.
If using QC phone should be idle or used very lightly, if you plan on using the phone you need to charge with non QC charger.

Your answer is in your post itself:
Snapdragon 650 supports QC 3 = OK
Extra circuit on motherboard = UNKNOWN (probably yes)
QC charger and cable = YES ( I have QC 3.0 cable and charger and most people use it too)
Drivers on kernel = YES (use custom kernels to support it)
License fee paid = NO ( Does it really matter as an end customer? )
Click to expand...
Click to collapse
I've using QC from the day it was supported by the custom kernels like Radon and others. So far, there are no issues with the charging etc. My RN3 is 13-14 months old now as I got it the day it was launched.
End story: it's just bad luck.

Dziugsas said:
Hello guys.Today i had my Redmi Note 3 Pro repaired , because a chip/module (that is responsible for charging) burnt down.
To avoid this:
1.Lower your charging rate (stock 2000 mAh).And yes , i was using stock rate.
2.Use only original charging adapter.And yes i was using charger and cable out of the box.
3.Try to avoid gaming while charging ,because the phone heats up so hard, especially screen.
I was using Resurrection Remix OS ,but im not saying it is responsible for this cause.
And here is some additional information from georgek1 on miui forums
Have a good time using this budget masterpiece!
Click to expand...
Click to collapse
This is what I have tried to say from the beginning. Now you explained it perfectly! Thanks.