Charging speed throttling poor stock thermal values - Xiaomi Redmi Note 7 Questions & Answers

So the issue is I bought quick charge 3.0 adapter from xiaomi site but it isn't making much difference because stock thermal values are too limiting
It charges 2800 ma while temp is >37 c
2300-2400 at > 39c
After that at 1900
Is there any way to start throttling from 44-45 c

im shocked 2800mA charginig speed in RN7 as it is capable of 18W fast charging only
but well from my experience with different phones is that as the phone going to full charge especially after 85 % i experienced mobile heatup and the charging current drops, but i think your issue may arise during low charge mode as well
first of all charge your screen while keeping display off and after every 15 minutes you can check for the average charging current and temperature for that session via Accubattery easily
by the way which app are you using for charging current

app is not accurate for checking, use USB voltmeter direct to charger to check charging amps,
in a hot country with high temperatures >30C.....then quick charge will throttle faster as battery heats.

mi 2a charger (redmi note 7pro)
even regular 2a charger (with redmi n7pro) thermal throttle.
i put my phone in charging for an hour ago and i checked suddenly and it has charged only 20% (21% to 42%) and after changing charger the charging speed was back on and also the mi charger was hot would be aroung 30 to 35 celcius.

Related

How well does adaptive fast charging for you?

Any one actually time how fast their note 4 charges for them? Mine didnt seem to charge any faster than my GS4 the last few days so I finally set a timer, and it charged 50% in just over an hour and a half. Way off what samsung claimed, considering this was supposed to take only 30 minutes...and yes I have fast charging enabled and am using the fast charging adapter.
In 20 minutes charged about 33%. I am happy, cause fast charging working very well. From 25% to 95 % in 60 minutes.
Wysłane z mojego SM-N910F przy użyciu Tapatalka
I've done measurements this morning after getting my Note 4 last night.
I agree. I've found little difference between fast charging, and normal at the levels i was measuring.
Perhaps it works faster between 0 and 50%, which seems to be the stats Samsung always quoted. If there is any kind of intelligence circutry going on, it must be varying the amount of ampage being drawn from the charger.
I've found the amps drawn to be VERY low as compared with the S5. Obviously the voltage is the main thing changing with Samsung's "fast Charging" plug.
For example changing from 90% to 100% I found:
USB 2 lead supplied with phone + normal plug = 23mins 31 seconds
USB 2 lead supplied with phone + fast charging plug supplied by Samsung = 23 mins dead.
31 seconds difference is hardly stallar!
Yes you can say it depends on what apps were consuming resource in the background, but it was just standard apps synching etc.
Screen was off the entire time, and nothing processor intensive was actively running.
But I did notice something interesting:
If watts = amps x volts it might explain why the phone isn't charging that fast at the 90% level.
Note 4:
With anker 40w 5-port charge (capable of outpitting 2.4 amps per port, the typical draw was between 300 and 450 ma
With Samsung fast charger it was drawing between 250 and 350ma.
Obviously I'm not counting voltage, which will definitely play a part in the overall wattage. But there has to be some kind of intelligence here controlling it as it's not steady.
S5:
Anker 5-port: 1200ma steady
Fast charger (not compatable of course): 1200ma Steady
Which is also intereting seeing as the max output is 1800ma, so the phone still isnt drawing the max it could do.
Might try draining the Note 4 down even more, and seeing if it does up the draw when the battery is nearing empty
I was very impressed with the charging.
The ultimate test for me was when I was playing a fairly graphics hungry game whilst being connected to the fast charger. It continued to charge the phone up to 100% from 30% in around 40 minutes whilst playing.
I believe the best way to ensure the results are comparable is to make sure the phone is completely powered down and the battery has had a handful of recharge cycles first.
Anyhow, I am impressed with the charging and the battery consumption of my Note 4 to date
.
Impressive. Considering you were using a lot of screen and processing power. Sounds like a wait and see is in order, see how it pans out.
Battery life doesn't seem bad for what I have used, not but much better than I had on the S5. In time I expect things to improve though.
With me fast charging work very well
30 mins then 50% when playing some small game and surfing web
Sent from my SM-N910L using XDA Free mobile app
I went from 21% to 75% in about 40 minutes the other day (was monitoring), but my device was on and I had used it a few times in between that time... fast charging is really meant to be used when your device is OFF - that's where you'll get the most benefit.
Mine works fine. Remember it works while screen is off or phone powered down. Also from 0-50 only. Beyond that and it will use 5v to charge instead of the 9v. That's why Fast Charging will only work with the charger it came with.
breacherman said:
Any one actually time how fast their note 4 charges for them? Mine didnt seem to charge any faster than my GS4 the last few days so I finally set a timer, and it charged 50% in just over an hour and a half. Way off what samsung claimed, considering this was supposed to take only 30 minutes...and yes I have fast charging enabled and am using the fast charging adapter.
Click to expand...
Click to collapse
Are you still having the same issue?
Im charging my phone for the first time and i dont find the fast charging works well with me. Its been an hour already and my battery is still at 30%. I also turn off my phone to make sure i get the 30mins 50% but no luck. Should fast charging kicks in after several recharge cycle?
Remember, it's called adaptive fast charging so it's charging rate varies depending on variables such as temperature, etc.
I went from 20% to 96% in about 60-90 minutes today. Not too bad.
I don't plan on using fast charging much to test, but it's my first few days with the phone and I've been stress testing it to see how battery life is.
90mins for me from 1% to 100%.
no problem at all. been charging from 0 to 100% at exactly 60mins
Impressed with mine used to have a spare battery but not anymore as the beast can really fast.
Must use included charger and CABLE
I found that for fast charging to work you must use the cable and charger that shipped with the Note 4.
hey and im sorry to dig this thread out again, but wondering if another tried fast charging with third party battery, I bought a ravpower note 4 battery off amazon and charged it with my note 4 adapter and I went from 10% to 50% in about 50 minutes, im sure its not fast enough.
note 4 adaptive fast charging
The phone has a chip and the charger has a chip it is this that allows the phone to charge at 9v only between 0 to 50. It's easy for people to be unimpressed because Samsung typically charge quickly. I tried a LG g3 for a few days and it charged ridiculously slow compared to a Samsung if it is taking an hr and a half to charge your phone halfway I would consider using your warranty for a new device or battery
ita7ia said:
The phone has a chip and the charger has a chip it is this that allows the phone to charge at 9v only between 0 to 50. It's easy for people to be unimpressed because Samsung typically charge quickly. I tried a LG g3 for a few days and it charged ridiculously slow compared to a Samsung if it is taking an hr and a half to charge your phone halfway I would consider using your warranty for a new device or battery
Click to expand...
Click to collapse
is this correct?
It will only do fast charging below 50%?
What if it starts at 45% - will it stop when it gets to 50%?
I'm finding that Adaptive Fast Charging (AFC) only works (phone reads "fast charging") when the charge cycle is started while the phone's battery is almost dead. Now, "almost dead" means different things to different people, but my GS6 won't use AFC unless it's really low - I know it won't kick on/in circa 35%, but I don't know the precise level.
Here's some an interesting comment made on the awesome article at the link below:
"You should note though, that CABLES DO MATTER. Every el-cheapo ebay cable isn't supported for quick charging. They usually allow about 700mA to pass through. You need high quality cables that probably came with your smartphone in order for quick charging to work. I have done several tests with my Note 4 with several cables and an adapter that meters the output Amperage."
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/
Works great for me take about an hour and 40 mins from 4-fully charged.
I lost my charger so i cant help here
Been looking all over eBay & Amazon, but nothing...*sigh*

Battery Discharging while plugged in

Hi,
I was video calling someone for a group project, and I was using a regular (not turbo) charger to charge my phone while i was at it. when I started, my phone was at 5%. Then it went to 0% and died, even though the charger was still plugged in. Is there any way to stop it from losing charge while its plugged in like this?
Use a faster charger. 5V 1A is fine to charge it when not in use but if you use it intensively like you did (screen on and high network usage) it is not enough. I would use at minimum a 5V 2A or the turbo charger.
DekkerP6 said:
Use a faster charger. 5V 1A is fine to charge it when not in use but if you use it intensively like you did (screen on and high network usage) it is not enough. I would use at minimum a 5V 2A or the turbo charger.
Click to expand...
Click to collapse
You are mostly right, but the phone will not draw in excess of about 1200mA from any non-turbo charger, a larger charger is not important and will give no gain, but it doesn't hurt anything either.
The Moto X has a very large current draw off the battery when using the display actively, and at high brightness it gets almost ridiculously high, and add in intensive networking, high CPU usage (encode/decode video streams in real-time), and the power draw can easily exceed 1A or even more, so I am not surprised the battery drained while connected.
I am not an advocate of Turbo charging either, Qualcomm Quick Charge 2.0 can be hard on batteries, not in itself but the heat build up while using the device and turbo charging at the same time can easily exceed acceptable thresholds, but sometimes it is necessary with this device.
acejavelin said:
You are mostly right, but the phone will not draw in excess of about 1200mA from any non-turbo charger, a larger charger is not important and will give no gain, but it doesn't hurt anything either.
The Moto X has a very large current draw off the battery when using the display actively, and at high brightness it gets almost ridiculously high, and add in intensive networking, high CPU usage (encode/decode video streams in real-time), and the power draw can easily exceed 1A or even more, so I am not surprised the battery drained while connected.
I am not an advocate of Turbo charging either, Qualcomm Quick Charge 2.0 can be hard on batteries, not in itself but the heat build up while using the device and turbo charging at the same time can easily exceed acceptable thresholds, but sometimes it is necessary with this device.
Click to expand...
Click to collapse
I remember reading that quick charge is deactivated when the screen is on (reverting back to 5V) to avoid overheating so I don't see using the turbocharger when using the phone as worst than any other charger or any better for that matter.
But yes, he shouldn't have started his chat with a MXPE at 5% battery left .
DekkerP6 said:
I remember reading that quick charge is deactivated when the screen is on (reverting back to 5V) to avoid overheating so I don't see using the turbocharger when using the phone as worst than any other charger or any better for that matter.
But yes, he shouldn't have started his chat with a MXPE at 5% battery left .
Click to expand...
Click to collapse
Hmm... I hadn't heard that but it makes perfect sense. Personally, I am usually looking for a charger if my phone falls under 40% unless it's within a few hours of bed time.

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 Xiaomi Redmi Note 5 Pro can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
2 Hour With Stock Charger
I didn't completely check the ratings and time but stock charger DOES NOT fast charge this phone. as the Stock Charger isnt QC2.0 Supported. However this mobile does support QC2.0 but you'll have to test QC2.0 Charger 1st. Not all QC2.0 Chargers work on this mobile. Its a little picky. So go to a shop check QC2.0 Chargers on your mobile. when you get circle Sign on notification bar along side battery then it means that device is fast charging. if not then there will be no circle around the charging sign (Flash sign)
also idt this mobile supports QC3.0 but i dont have tools to check amps volts of charger.
Lenovo's original QC3.0 charger doesnt work on this phone. I've tested. but Motorola's QC3.0 Charger works fine.
my rn5 pro , takes apporx 3 hours to charge completely!
So far I'm a bit slow, a little bit more than 3 hours to completely charge the phone. Might have something to do with the cable.
My current charging setup:
- ANKER 5 port 40W
- a docomo USB cable
Planning to buy a proper 20AWG usb cable and a QC2.0 adapter.
I just bought a Letv charger which supported qc3.0 for about 4$ on taobao
I'm currently on the 9.5.11 build and it takes about 4-5 hours to completely charge the device using stock charger, And it took about 2-3 hours while on 9.2 build.
I wonder if the Mi QC 3.0 based charger would improve the situation for us?
piyush95 said:
I'm currently on the 9.5.11 build and it takes about 4-5 hours to completely charge the device using stock charger, And it took about 2-3 hours while on 9.2 build.
I wonder if the Mi QC 3.0 based charger would improve the situation for us?
Click to expand...
Click to collapse
Slow charge is a known bug in 9.5.11 build. Wait for an update or change ROM
13,2W for me
I recieved 9.2.13 update yesterday and have been noticing significant boost to charging speeds since then...yet to fully charge from 0 so can't comment on total time but as per Ampere, charging speeds are in range of 1500 to 1700 mah
1000 mA max with 5v 2amp and Work Normal Speed with Stock Charger
Approximately 2 hour for charge phone
I use the app Ampere (free in Playstore) to measure power input and with a normal charger (non QC) it shows up to 1600 mAh charging amount and from almost 0 to 100% it is taking 2,5 hours. One question: is there a way to tell if QuickCharge is active?
@Kusie
Look on your"s phone status bar. With normal charging there is thunder icon next to the battery. With QC active, thunder in in circle as far as I remember. Info about active QC should be also displayed in the bottom of your lockscreen
Sent from my flo using XDA Labs
Using my usb inline meter, i'm getting ~6.5v and ~2.2A, with a Tronsmart usb cable and QC 3.0 Truro charger, screen off and about 44% remaining on battery. Will try when the battery is lower some other time.
takes around 2hours to charge 100% using stock charger..
1h 30min with a Quick Charger from Anker.
Cel00 said:
1h 30min with a Quick Charger from Anker.
Click to expand...
Click to collapse
Not possible.
Incogn said:
Not possible.
Click to expand...
Click to collapse
Of Course it's true, why should I lie?
Turned off the Phone at 5% and charged it to 100%....
Cel00 said:
Of Course it's true, why should I lie?
Turned off the Phone at 5% and charged it to 100%....
Click to expand...
Click to collapse
I have no idea why would you do that... But read reviews, no matter what kind of charger you use, this phone only supports qc 2.0 version. From 0 to 100, in 1 hour, you only get like 55%, and in the end it slows down even more, so yes, impossible to fully charge in 1.5h, TECHNICALLY IMPOSSIBLE. You are either lying, or mixed times and got confused. Judging by technical parameters, the best this phone can do should be around 2hours from 0 to 100.
Incogn said:
I have no idea why would you do that... But read reviews, no matter what kind of charger you use, this phone only supports qc 2.0 version. From 0 to 100, in 1 hour, you only get like 55%, and in the end it slows down even more, so yes, impossible to fully charge in 1.5h, TECHNICALLY IMPOSSIBLE. You are either lying, or mixed times and got confused. Judging by technical parameters, the best this phone can do should be around 2hours from 0 to 100.
Click to expand...
Click to collapse
I just posted above that I was able to get QC 3.0 charging rates. Approximately 2.2A (fluctuates +/- 0.1A) and 6.6v (fluctuates +/- 0.2v) using a QC 3.0 charger and Tronsmart cable. Measured using an inline meter, not software.

Mi A1 quick charge module?? [MAGISK]

I was looking for modules to enable quick charge for Mi A1, but all I found was the mistake Xiaomi made during Oreo beta. Is there any modules to enable quick charge for Mi A1, or someone to develop a module using magisk? I've installed Magisk Manager to install Gcam, that's what made me curious. Correct me if I'm wrong in any statement!
Quick charge is generally not a good idea because it lowers the lifespan of the li-ion battery. The stock 10W (2A) charger will charge the battery at 1.5C rate which is already above the recommended standard 1C.
If you are referring to the Qualcomm's Quick charge technology... No.... Except for the obvious kernel and android changes there are also several hardware changes that need to be done for it to be enabled. Also given that 625 is with QC3 you won't really notice that much of a decrease of charging time. We still have pretty good charging times and given that the battery is only 3K it is really not that much of a deal. In the end you'll have 10-15min faster charging. Also at the end of the charging cycle (around 90%) QC is lowered to an ordinary charging, so for small batteries like ours it doesn't really have that much of a use. Also given that our battery is not easily changeable, QC and all types of faster charging lowers the lifespan of the battery significantly and it can go down in less than two years. If it is subjected to regular higher temperatures(>40 degrees Celsius it will start to form copper inside of the battery and will increase its self discharge significantly) it will go down in an less than an year.
Some custom kernels - like moun kernel - have fast charge enabled.
Speed up is not rly high.
Roadwuzel said:
Some custom kernels - like moun kernel - have fast charge enabled.
Speed up is not rly high.
Click to expand...
Click to collapse
Thanks, I'll look into it!
Quick Charge cannot be enabled( or shouldn't be ) on MI A1
Firstly let me clarify, I'm using RR ROM which has Moun Kernel by default, it has USB Fast Charge which is not to be confused with Qcom Quick Charge because it means it will Fast Charge( @10watts ) when on USB, that is plugged on a computer. On Stock ROM it charges very slowly when on USB.
Talking about Qcom Quick Charge, though sd 625 supports it, other hardware such as the battery isnt built to support higher voltages which can potentially damage the phone.
So no Quick Charge on MI A1
barrack1 said:
Quick charge is generally not a good idea because it lowers the lifespan of the li-ion battery. The stock 10W (2A) charger will charge the battery at 1.5C rate which is already above the recommended standard 1C.
Click to expand...
Click to collapse
MiA1 has 3000mAh and supplied [email protected] charger gives 2A only! (I actually do get 2A charging up to 80% SoC).
Therefore, the MiA1 charging is at 2/3 = 0.67C and NOT 1.5C as you state.
For 0.67C, the time for 70% charging is 0.70/0.67 = 1.045hr = 63mins, which I'm getting in practice.
For 1.5C, 70% charging will be in 0.70/1.5 = 28mins!! Not just possible. Nobody, who tried fast charging using higher than 10W charger, has reported anywhere except slight decrease in charging time (for 70% charge).
The LiPo Battery in MiA1 is BN31. There may be a max charging current limitation circuit in BN31. I read somewhere (lost the reference, unable to find again) that 2.2A is the max limit.
In that case we get 0.73C and time for 70% charge will be 0.7/0.73 = 58mins. This HAS been reported using [email protected] at 3A. (BN31 allowing only 2.2A).
Add on Update:
There is one report on slightly faster charging of BN31. The max charging current is estimated to be 2.485A that is at 0.828C.
MiA1 got 0-100% charged in 92mins using One Plus' Dash Charger (not the charger provided which charges at 0.67). This is reported by TelecomTalk.
This is 24% faster than normal.
manabsac said:
MiA1 has 3000mAh and supplied [email protected] charger gives 2A only! (I actually do get 2A charging up to 80% SoC).
Therefore, the MiA1 charging is at 2/3 = 0.67C and NOT 1.5C as you state.
For 0.67C, the time for 70% charging is 0.70/0.67 = 1.045hr = 63mins, which I'm getting in practice.
For 1.5C, 70% charging will be in 0.70/1.5 = 28mins!! Not just possible. Nobody, who tried fast charging using higher than 10W charger, has reported anywhere except slight decrease in charging time (for 70% charge).
The LiPo Battery in MiA1 is BN31. There may be a max charging current limitation circuit in BN31. I read somewhere (lost the reference, unable to find again) that 2.2A is the max limit.
In that case we get 0.73C and time for 70% charge will be 0.7/0.73 = 58mins. This HAS been reported using [email protected] at 3A. (BN31 allowing only 2.2A).
Click to expand...
Click to collapse
You're right that the stock charging rate is 0.67C which is a very moderate charging rate. No idea why the battery still heats up noticeably sometimes during charging. There was a change in the charging icon I think for the Oreo update which gave the erroneous impression that fast charging (>10W) was supported and people started (wrongly) reporting decreased charging times fueling the myth.

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 LG G8X ThinQ can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
QC 3 is great, I dont use the wireless charging.
I'm honestly pretty disappointed with the quick charging speed. I had the Essential phone before this and loved the 27w fast charging with USB PD. The G8X charges really slow in comparison. I've tried QC 3.0 adapters and USB PD adapters and just can't find something that I would call "quick" by today's standards.
im using a xiaomi remi note 8 pro charger to quick charge, the one in the box doesn't give me "Fast charge" icon
using the stock usb-c charger, I get pretty good fast charge. wireless is a bit slower but I use it to avoid fast charge anyway to preserve the battery health.
rapido_burrito said:
I'm honestly pretty disappointed with the quick charging speed. I had the Essential phone before this and loved the 27w fast charging with USB PD. The G8X charges really slow in comparison. I've tried QC 3.0 adapters and USB PD adapters and just can't find something that I would call "quick" by today's standards.
Click to expand...
Click to collapse
I agree. It is unstable charging. In my cause power ( A) is jumping, also QC3/unknow is swapping very ofter. Just connect USB meter. Strange. There is an option for save charge, but On/Off causes no difference to me.
ive tried 5 different chargers but this phone does not charge more than 10w on any chargers QC 2.0, 3.0 AND 4.0+ usb AtoC CtoC tested on usb tester. it will spike to 13w maximum then go stable 10w all the way. Can anybody test on their phone to confirm this? ive tried these chargers on xiaomi and realme phone they would charge upto 17w
Lg g8x charging speed
Tried every charger starting from 15W and up to 40W. QC 3.0 to 4+, Dash charge, Warp charge, Super charge, Adaptive Fast charge. 0 to 100% takes 2 hr 12 min.
LG g8x refuses to charge faster with any of them. When world moves to faster charging protocols incl. long hesitant apple for iPhone, LG does the opposite. LG and Qualcomm mentions that QC 4.0 supported in their official websites which should support 27 W, but with any charger phone accepts max. of 13 W in my testing.
I have been using LG phones for long only because of quad DAC. For people like me who wants to support LG, this slow charging is a real issue.
I understand that V60 comes with 25W qc 4.0 inbox charger which charges 0 to 100% in around 1 hr 45 min for 5000 mAh battery as per YouTube reviews.
Now the only question left for me is that can 25W V60 charger be used to charge g8x battery of 4000 mAh in 1 hr 30 min. Has anyone tried charging g8x with V60 charger? If so, can some post changing time.
I would really like someone to use Mi Pocket Powerbank Pro available in India a 22.5 W Quickcharge (don't know which Qualcomm level, guessing QC3) powerbank specifically using a super high quality cable either the Blauplunkt Flat USB 2 to type C or the Ikea Type C to Type C cable using the type C Power Delivery (PD) output port of this powerbank which I believe would be the topmost setup ever for charging this device. Is the Max fastcharge rating 18w of this device?? As such I did not even mention Redmi 30w powerbank. Which is the QC4 power adaptor or powerbank which can be bought in India?
If rooted you can get fast charging via a magisk module. It charges fast even with screen on... Which is what annoys me about the phones that restrict it to approx 1000. They still limit temperature to 46C
Turbo is 2750mah, super turbo is 3000mah
Normal is 2450mah and 45C limit.
Also recommend the intelligent power control magisk module, better than acc. I'm using 90 max 86 back on. Works great!
robnitro said:
If rooted you can get fast charging via a magisk module. It charges fast even with screen on... Which is what annoys me about the phones that restrict it to approx 1000. They still limit temperature to 46C
Turbo is 2750mah, super turbo is 3000mah
Normal is 2450mah and 45C limit.
Also recommend the intelligent power control magisk module, better than acc. I'm using 90 max 86 back on. Works great!
Click to expand...
Click to collapse
Tried superturbo and got ~3000 ma but in full run from 0 to 100 it just makes 10 to 12 min difference
YASHWANT DHAKAD said:
Tried superturbo and got ~3000 ma but in full run from 0 to 100 it just makes 10 to 12 min difference
Click to expand...
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It helps where keeping the screen on, the charging speed is not reduced. Before this, keeping the screen on would reduce the charge rate a lot.
Now I'm on s21 and they severely limit charge rate once the battery reaches 37C.

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