Any way to disable fast charge? - Xiaomi Mi A2 Lite Questions & Answers

Anyone knows if is any way to disable fast charge?
Dont like fast charge since is worst for battery life.

For Battery Life is fine. This model dont have any fast charge or something similar. The charger included its fine and cant damage the battery.

Do not mix stanrdard fast charging (=being able to suck more than 1A from the charger) and QuickCharge (Qualcomm charging technology, involving e.g temporarily increase of charging voltage well above 5V and charging current well above 2A). A2 Lite is able to fast charge, just use Ampere or similar software and you see how much current it takes.
To the OP: I read that some custom kernels have this possibility, but no idea if any of few customs roms for our device has this capability. By using external software you can limit battery charge to e.g 80%, which would help a bit, or simply use one of old chargers, which could push around 500-700 mA max.

I'm using this magisk module: https://forum.xda-developers.com/apps/magisk/module-magic-charging-switch-cs-v2017-9-t3668427
Basically it helps to extend battery life by limiting the maximum charge, charging the phone slowly on certain range of battery level or when the battery reaches certain temperature.

Txatxiquesi said:
Anyone knows if is any way to disable fast charge?
Dont like fast charge since is worst for battery life.
Click to expand...
Click to collapse
I wondered about this too. If you're not in a hurry (say, charging overnight) then maybe the slower charge will ensure optimum battery life.
I find that using a long (2M), cheap charging cable prevents fast charge!
That's understandable because the electrical resistance will be higher than a short/quality cable, so limits the charging current.

anzhaki said:
I'm using this magisk module: https://forum.xda-developers.com/apps/magisk/module-magic-charging-switch-cs-v2017-9-t3668427
Basically it helps to extend battery life by limiting the maximum charge, charging the phone slowly on certain range of battery level or when the battery reaches certain temperature.
Click to expand...
Click to collapse
I use the root app " battery charge limit", i personally limit the battery charge to 80%.

Txatxiquesi said:
I use the root app " battery charge limit", i personally limit the battery charge to 80%.
Click to expand...
Click to collapse
Accubaterry app does that without root. (i think)
About fastcharging with 5v2a i think that isn't so bad for battery. (battery on my phone doesnt even really warm up)
There were some problems, on my previous phone with quickcharge. (and phone was really hot after charging)
And battery was already almost 2years old. And with using quickcharger it got really bad battery in few months.

bedencic said:
Accubaterry app does that without root. (i think)
About fastcharging with 5v2a i think that isn't so bad for battery. (battery on my phone doesnt even really warm up)
There were some problems, on my previous phone with quickcharge. (and phone was really hot after charging)
And battery was already almost 2years old. And with using quickcharger it got really bad battery in few months.
Click to expand...
Click to collapse
Accubattery only can warning you about the % charge, but still charging, to stop the charge needs root, since the control file is on system partition.

Related

how fast can Arc S charge?

how fast can Arc S charge?
how many Voltage recommanded for the charger?
is 1000mA max support, can it be higher like 2000mA?
thank you
All I know is that the default charger is 850mAh, and that already chargers pretty fast. half-full in an hour.
sdk16420 said:
All I know is that the default charger is 850mAh, and that already chargers pretty fast. half-full in an hour.
Click to expand...
Click to collapse
do you think it can be faster?
i would say mine charges full in an hour
charge current is programmed in phone's firmware below 1A for AC chargers and below 500mA for USB (don't remember actual values), so even if a 2A charger is used, charge time will not vary.
Mine goes about 1% a minute, I find it good enough for me.
Full charge takes about 1,5h so for me it's not long. But comparing to Xperia S and 0,5h Arc S charge takes ages
When it gets to 90% or maybe even 85%, it slows down its charging, and displays the LED as green, it then continues to charge, this is the economic techniques of the charger, at least that's what I remember from the manual. So it saves energy as most people charge their phone at night, as it gets plugged in for longer periods of time.
This was the first device that introduced me to that concept, the iPhone 3G I had before focused on faster charging. I am unaware of any other products that use green charging methods, however I'm certain other devices will do.
Sent from my LT18i using xda app-developers app
stu15 said:
When it gets to 90% or maybe even 85%, it slows down its charging, and displays the LED as green, it then continues to charge, this is the economic techniques of the charger, at least that's what I remember from the manual. So it saves energy as most people charge their phone at night, as it gets plugged in for longer periods of time.
This was the first device that introduced me to that concept, the iPhone 3G I had before focused on faster charging. I am unaware of any other products that use green charging methods, however I'm certain other devices will do.
Sent from my LT18i using xda app-developers app
Click to expand...
Click to collapse
charging a lithium based cell requires a first step using a constant current supply, until voltage reaches 4.2 volt; beyond that point, charging switches to constant voltage, providing the last 10% or so of charge to the cell.
every li-ion charger does so, but someone signals "cell charged" (i.e. green led) when charger actually stops supplying current, others when transitioning from constant-current to constant-voltage mode.
and if that last 10% of charge is not so vital for you, i suggest to disconnect charger as soon as led turns green, because at that high voltage, corrosion of battery's anode is faster and so life of cell and it's capacity is reduced on the long run.
ww w.societyofrobots.com/robotforum/index.php?action=dlattach;topic=13150.0;attach=5296;image
(remove spaces from link, i'm below 10 posts)
_Homer said:
and if that last 10% of charge is not so vital for you, i suggest to disconnect charger as soon as led turns green, because at that high voltage, corrosion of battery's anode is faster and so life of cell and it's capacity is reduced on the long run.
Click to expand...
Click to collapse
MYTH NO. 2: Overcharging your lithium ion battery will reduce its battery life
One of the most common myths that we have heard about lithium ion batteries would be the need to plug it from its charger after being fully charged, since overcharging the battery/device will reduce its battery life. The truth is, lithium ion batteries cannot be overcharged or can be reduced of its battery life through overcharging. What’s good about these batteries is that that already have built-in circuits that will cut off the power once it has been fully charged.
However, it is a good idea to unplug or remove the battery once it has done charging because the heat from poor ventilation or from charging will cause it to blow up. Another reason why this is an important note worth remembering is that batteries discharge faster when heated thus, reducing its lifespan.
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Click to collapse
http://www.androidauthority.com/the-top-3-android-battery-myths-46924/
Someguyfromhell said:
http://www.androidauthority.com/the-top-3-android-battery-myths-46924/
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Click to collapse
that it's true, and is a residual myth from the age of stupid charger that went on charging forever after 100%.
perhaps I was not talking about overcharging, but to terminate charge before the constant-voltage part (at about 90%) if you want to slow down capacity reduction and so prolong battery life.
life of li-ion cell is optimal at 40% charge, but obviously a cell kept at 40% is useless :laugh:, so only thing I can suggest is to avoid reaching full charge if you can.
it's a form of perfectionism, let's call it so
I undervolted my phone, turned off WiFi, sync, brightness and put it on powersaver, charged at 1% a minute which is much faster than its normal charge. Good for me to know, obviously turning the phone off is basically the same
Sent from my LT18i using xda app-developers app
jman2131 said:
i would say mine charges full in an hour
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Click to collapse
me too my phone charges full in an hour
agree about full charge with 1 hour
mine is sometimes less than 1 hour with original charger. with PC or non original chargers more than 2 hours. sometimes 3
ash-ta said:
me too my phone charges full in an hour
Click to expand...
Click to collapse
the same for me
agrCale this
what about charge from PC?

How to charge N5x???

Hi,
I just bought a charger which support Qualcom quick charge..but figured out that N5x does not support it...
Can I damage batery using Qualcomm quick charge??
How is the diffrence between qualcomm quick charge and fast USB C charge?
Tnx
roxtedy169 said:
Hi,
I just bought a charger which support Qualcom quick charge..but figured out that N5x does not support it...
Can I damage batery using Qualcomm quick charge??
How is the diffrence between qualcomm quick charge and fast USB C charge?
Tnx
Click to expand...
Click to collapse
You'll be fine using that charger, but you may not see charging speeds as quick as the original charger.
But on that charger are even normal charging ports..which is better to use?
Tnx
You should be fine but it's worth noting that Google suggests only using the power charger that came with the device.
Google's Battery lifespan, charging & usage tips
1. Use the power adaptor and charger that came with your device
Other chargers can charge slowly, not at all or damage your device or battery.
2. Keep it cool
Avoid situations where your device can overheat. Your battery will drain much faster when it's hot, even if you're not using it, and this can even damage your battery. Bear in mind that your device warms up when it's plugged in, so try not to keep it charging all the time.
3. Don't worry about calibrating the battery
You don't need to teach your device how much capacity the battery has by going from totally charged to completely drained.
4. Keep it more than half charged
For the best battery lifespan, try to keep your battery charged above 50% as much as possible.
5. Try to charge a little at a time
Small charges throughout the day are best for battery health. Battery lifespan can suffer if it's charged from zero to full and then completely drained on a regular basis.
6. Store your device half charged
Leave the device with a half-full battery if it needs to be stored for a long time.
Click to expand...
Click to collapse

Is there a way to turn off the fast charging in the OS?

I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?
513263337 said:
I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?
Click to expand...
Click to collapse
You made my night... Slower charger kills battery not fast charging.. fast charge save battery to be honest. And you dont have to be worry since the batteries now are LI-lon . Go get info in google about the batteries . All i can say you got infos wrong.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
Agree with previous post. But if it makes you feel better, just don't use a dash charger...
Very simple.
lummujaj said:
You made my night... Slower charger kills battery not fast charging.. fast charge save battery to be honest. And you dont have to be worry since the batteries now are LI-lon . Go get info in google about the batteries . All i can say you got infos wrong.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
Click to expand...
Click to collapse
OK. I didn't know.
I was speaking from my past experience with Samsung Galaxy Note 4. I bought couple of original Samsung batteries and rotate them throughout daily usage. I noticed a significant difference in battery life comparing the ones that I used fast charge on vs the ones I didn't. After that I stick to NOT using fast charge.
Of course, that's nothing scientific. And Samsung uses a different fast charge mechanism (higher voltage) than OnePlus (higher current), so there could be difference there too.
Because Dash Charge seems to be re-labeled Vooc charging from OPPO, I can tell you, that the last two years with charging minimum one times every day, there is no bad effect on the battery (still the first one).
Sent from my Find7 using XDA-Developers mobile app
513263337 said:
OK. I didn't know.
I was speaking from my past experience with Samsung Galaxy Note 4. I bought couple of original Samsung batteries and rotate them throughout daily usage. I noticed a significant difference in battery life comparing the ones that I used fast charge on vs the ones I didn't. After that I stick to NOT using fast charge.
Of course, that's nothing scientific. And Samsung uses a different fast charge mechanism (higher voltage) than OnePlus (higher current), so there could be difference there too.
Click to expand...
Click to collapse
Samsung devices are notorious for killing batteries and its more likely hardware than it is the battery itself, u will be fine
I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?
513263337 said:
I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?
Click to expand...
Click to collapse
I use Samsung 1.5 Amp charger and keep my battery between 40% to 80%
I think these are best for long term usage.
repsol89 said:
I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?
Click to expand...
Click to collapse
I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.
iam_adarsh said:
I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.
Click to expand...
Click to collapse
Well, it was my first thought, but everyone in this topic is telling me that OP works different than Samsung!
iam_adarsh said:
I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.
Click to expand...
Click to collapse
that's the problem of the charger or the phone itself. thecharger is designed not to charge when the battery is full. What I want to say is you experienced an accident and sorry for you.
The most serious threat to the battery is high temperature. OnePlus 3 reduce the charging heat by its dash charge. The dash charge pushes low voltage directly to the phone, which mitigates the heating problem by pushing high electric current and making the voltage transition process in dash charger. Most of other phones still use high voltage because they fail to create high current. recalling the physics in high school, the power is current multiplied by voltage and energy equals to power multiplied by time. than you would understand the powerful feature of dash charge
dlhxr said:
that's the problem of the charger or the phone itself. thecharger is designed not to charge when the battery is full. What I want to say is you experienced an accident and sorry for you.
The most serious threat to the battery is high temperature. OnePlus 3 reduce the charging heat by its dash charge. The dash charge pushes low voltage directly to the phone, which mitigates the heating problem by pushing high electric current and making the voltage transition process in dash charger. Most of other phones still use high voltage because they fail to create high current. recalling the physics in high school, the power is current multiplied by voltage and energy equals to power multiplied by time. than you would understand the powerful feature of dash charge
Click to expand...
Click to collapse
The power is current multiplied by voltage so what's the difference between high current mutiplied by low voltage versus low current multiplied by high voltage ?
2V x A = V x 2A
lapocompris said:
The power is current multiplied by voltage so what's the difference between high current mutiplied by low voltage versus low current multiplied by high voltage ?
2V x A = V x 2A
Click to expand...
Click to collapse
qc3.0 uses low current and high voltage. Dash uses high current and low voltage. As a result, they have similar power and both charge quickly. However, the heating problem is more serious for qc 3.0. The difference of the battery voltage and charger voltage is the leading factor that determines the transition efficiency. The bigger the difference is, the more heat charging process generates.
So~ you could look up for qc3.0. for mi 5, it has three adaptive mode: 5V2.5A、9V2A、12V1.5A. for dash, we have 5V4A
repsol89 said:
I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?
Click to expand...
Click to collapse
There is no problem with leaving your phone on the charger. I do this with every phone since years.
If people experience something bad with it, their phone or battery are broken. The current tech just keeps the battery at full capacity once it's full. Never had any problem.
So many "opinions" but mostly incorrect. The answer to the OPs question is that you don't have to worry about quick charge destroying your battery. It will not have significant impact on your battery capacity. I would have been more worried about breaking the usb type-c port(see point 2 below). All things considered, after 2-3 years you will probably buy a new phone anyway and also you can always buy a replacement battery cheap. But you can simply use a normal charger which delivers <3A with 5V so you don't have to worry about anything.
1- Slow charge does not damage lithium-ion chemistry batteries. You can read about lithium-ion charging here. But neither fast charge will damage lithium-ion as long as the battery temperature is not extremely high. Also temperature at different charge stages effect the capacity decrease (source) But you will be fine as long as the battery temperature is less than 45C. The charging IC should stop the charging process if it exceeds it anyway.
2- Qualcomm's quick charge is much better than voop/dash charge from an engineering standpoint. This is why also USB organization's power delivery (PD) standard uses similar scheme. The problem is the cable and the connector. The maximum allowed current at 5V is 3A with usb type-c connector (source). If you provide more current, you need to use a thicker cable(dash/vooc cables). But you can't change the connector, and it may damage your connector in the long run to use 3+A currents to charge. Because there is a contact resistance (R) and the power lost in the connector is square of current (I) times R. Meaning R*I^2, it will wear off the connector faster. This is why some companies with some engineering skills opt in to use higher voltages instead of higher currents.
3- You can't push more current to lithium-ion battery than it accepts. The maximum current is voltage delta (between charging voltage and battery voltage) divided by internal resistance. This is why you can charge empty battery much faster. If you use an app like Ampere from play store, you can see the voltage of your battery before and after you plug in your charger. If you plug in a normal charger, you will see that it goes up a little bit. If you plug a quick charger it goes up to ~4.35V
4- Yes, there is conversion inefficiencies for quick charge inside the phone, and it will warm up the "phone" and battery only indirectly. The conversion IC are normally >90% efficient (source). This does not mean that your battery will be destroyed. It is perfectly fine to charge lithium-batteries with up to 45C temperatures (source).
4- If overnight charging killed your battery, your battery was faulty (or you had 3rd party battery?). The battery should be capable of holding 4.35v charge. You would need to store battery at 4.35V full charge for over 3 months to loose 20% capacity (http://batteryuniversity.com/learn/article/how_to_store_batteries). Having full charge few hours overnight won't destroy it unless your battery or device is faulty.
With all this information, I would rather opt in for USB-PD/Qualcomm Quick Charge solutions than VOOC/DASH solutions. I think eventually only USB-PD will remain and everybody will use it as a standard only.

Is it possible to turn off the dash charge?

Hi,
Is it possible to turn off the dash charge? 5T is charged only overnight cause it can last the whole day anyway.
PS: I can turn off Fash Charge in my Samsung Note. So it saves battery if I charge only overnight and don't need fast charge feature.
There is no stock option for this. Maybe a custom kernel can support it or a custom kernel that doesn't support it at all would also be a possibility in theory.
I would suggest using a normal power adapter instead of the Dash charging one. Even a normal USB C cable prevents Dash charging as it can only be used with OnePlus' own cable. So maybe get a cheap USB C cable and use that?
Use a low amperage charger. Something like 1000mah. This will slowly charge your phone overnight. But make sure you use a quality charger.
Why would you want to do this? The OnePlus dash charger works differently from other chargers in that it holds the heat in the charging block. If you use a standard adapter you would transfer the heat to the phone while charging. I would NOT recommend doing this.
Sent from my ONEPLUS A5010 using Tapatalk
I use an Anker IQ 6-port Charger with a couple of fairly good quality cables.
I personally try to avoid any kind of fast charge because it will end up damaging the battery life faster than "standard" charge, even if the heat is absorbed by the DASH charger block. IQ Charge adapts itself with the needs of the device connected.
And my unit stays cool if I touch it while its charging.
Charge however you want. But for me, dash charger while getting ready in the morning or when you have a free half hour. Forget about charging overnight. I don't know your usage but for me, this works. The phone just sits on my nightstand without connecting overnight and I lose a very minimal battery amount.
Sent from my ONEPLUS A5010 using Tapatalk
---------- Post added at 05:47 PM ---------- Previous post was at 05:43 PM ----------
https://www.guidingtech.com/61180/dash-charging-quick-charge. I'll just leave this here.
Sent from my ONEPLUS A5010 using Tapatalk
That's why we can choose
Just not in a software way.
I choose to use wireless charging using a receiver.
通过我的 ONEPLUS A5010 上的 Tapatalk发言
DragonMessor said:
Use a low amperage charger. Something like 1000mah. This will slowly charge your phone overnight. But make sure you use a quality charger.
Click to expand...
Click to collapse
It's fine at even less than 1 amp. We have two 5Ts in the house and charge them at night at 0.35 - 0.45 amp.
I saw the dash reduce Ampare when pass above 80%.
(When not rush I use official iPhone 1Amp charger.)
Use 5V/2A standard charger to standard usb type c.
Oneplus 5t = 5V/4A
Quick Charge = 9V/2A
Dash n QC have more power!
I'm using an old 1A Samsung power adapter and dash charge cable and in addition I also use Battery Charge Limit app to limit charging the battery to 80%.
https://forum.xda-developers.com/android/apps-games/root-battery-charge-limit-t3557002
Headbanger1982 said:
I personally try to avoid any kind of fast charge because it will end up damaging the battery life faster than "standard" charge
Click to expand...
Click to collapse
No, it does not, especially not with dash charge. The excess heat is stored in the charger and is not transferred to the phone, and the heat is the only thing that degrades the battery faster.
SilverSurger said:
No, it does not, especially not with dash charge. The excess heat is stored in the charger and is not transferred to the phone, and the heat is the only thing that degrades the battery faster.
Click to expand...
Click to collapse
Your informations are not correct.
Dash (or VOOC, which is the very same technology since OnePlus is an Oppo brand) uses high current fast charging instead of high voltage charging (QuickCharge 2.0/3.0 uses high voltage) and the circuit that produces heat in phones that are not Dash/VOOC compliant is inside the phone, while in Dash/VOOC is inside the charger.
Oppo and OnePlush themselves have acknowledged that it makes SAFE to use the phone while it is quickcharging, NOT that the battery is not getting damaged by the use of a fast charging method, even if it charges at a lower voltage and higher current.
The use of any fast charge technology implies to shorten out the overall battery life.
SilverSurger said:
No, it does not, especially not with dash charge. The excess heat is stored in the charger and is not transferred to the phone, and the heat is the only thing that degrades the battery faster.
Click to expand...
Click to collapse
Just because they moved a bunch of the power regulation stuff to the charger doesn't mean the battery doesn't still get warmer. If you push 4 amps of current into it, it will heat up more so than when it receives, 1 amp.
Now you have me curious though, I guess I'll have to pay close attention to the battery temp next time I charge my battery. I've never used the dash charger, but perhaps I'll have to get it out of the box, and test with it as well just to see what kind of temps I see with a more powerful charger as well. I'm curious to see how much temperature difference there is.
I know on my Nexus 5X my phone always lasted long on a single charge when slow charged (0.35 amps), vs using the factory 3 amp charger.
Constantly topping up the battery overnight for 5-6 hours (assuming your slow charger will charge it to 100% in 2-3 hours) is worse than using Dash to charge it quickly in bursts in the morning and night when you have a spare 30 minutes.
I would never leave a phone stuck on a charger overnight. Especially since even the slowest charger in the works will charge the phone to 100% in three hours or so.
xocomaox said:
Constantly topping up the battery overnight for 5-6 hours (assuming your slow charger will charge it to 100% in 2-3 hours) is worse than using Dash to charge it quickly in bursts in the morning and night when you have a spare 30 minutes.
I would never leave a phone stuck on a charger overnight. Especially since even the slowest charger in the works will charge the phone to 100% in three hours or so.
Click to expand...
Click to collapse
I don't charge my phone over night either but by using above mentioned Battery Charge Limit app it is possible to stop charging when desired battery level has been reached.
Squabl said:
I don't charge my phone over night either but by using above mentioned Battery Charge Limit app it is possible to stop charging when desired battery level has been reached.
Click to expand...
Click to collapse
That would be a good idea to do. Although the best is to just Dash charge in short 30 minute bursts when you can.
Headbanger1982 said:
Your informations are not correct.
(...)
The use of any fast charge technology implies to shorten out the overall battery life.
Click to expand...
Click to collapse
How does it imply that? Heat is the only factor. Phone is not getting hot(ter than slowly charging) when charging.
What is the truth? With the rapid charging the battery deteriorates faster or better a slower charging?

Wall Charger 1Amp or 1.5

Hello guys,
To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.
Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.
Thank you all anf have good evening.
I am sure it will charge on either one, but how fast who knows? If you are rooted and have Magisk, download the ACC module and you can control your charging that way instead.
Le_Combattant said:
Hello guys,
To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.
Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.
Thank you all anf have good evening.
Click to expand...
Click to collapse
Older USB chargers are mostly slow 1A chargers, like the cube Apple chargers
Droid_Nut said:
I am sure it will charge on either one, but how fast who knows? If you are rooted and have Magisk, download the ACC module and you can control your charging that way instead.
Click to expand...
Click to collapse
I'm not rooted and I don't think I gonna it
Le_Combattant said:
Hello guys,
To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.
Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.
Thank you all anf have good evening.
Click to expand...
Click to collapse
I am an electrical engineer, and have some knowledge about how Li batteries function.
I have always wondered this, I always see people mentioning that slower charging is better for the longevity of Li-ion batteries. There is always a trade-off here. Slower charging also means the battery takes much longer to charge, and the battery stays hotter for longer period of time, which should affect it's lifetime. Fast charging also does the same thing, but the temperature is much hotter but is exposed for shorter period of time.
Now these is merely a speculation on my part, I don't have any theoretical or experimental evidence to back this up - I think regular 5V 2A charging is a balance between those two scenarios.
Also, I recall that the peak charging current is limited in P2XL, so using the stock charger shouldn't harm that much either.
Pixel 2XL is my first smartphone who do not Come hot when it charge so...
But I know that high temperature are not the best things for battery in general.
And about the level of charge ? Some people said they stop at 80% to manage battery
suhridkhan said:
I am an electrical engineer, and have some knowledge about how Li batteries function.
I have always wondered this, I always see people mentioning that slower charging is better for the longevity of Li-ion batteries. There is always a trade-off here. Slower charging also means the battery takes much longer to charge, and the battery stays hotter for longer period of time, which should affect it's lifetime. Fast charging also does the same thing, but the temperature is much hotter but is exposed for shorter period of time.
Now these is merely a speculation on my part, I don't have any theoretical or experimental evidence to back this up - I think regular 5V 2A charging is a balance between those two scenarios.
Also, I recall that the peak charging current is limited in P2XL, so using the stock charger shouldn't harm that much either.
Click to expand...
Click to collapse
I use a 5 watts charger and the phone stay completely cold during the charge process.
Also there was a recent 2017 scientific paper that tested what degraded the battery. It's a really interesting read with many tested model.
https://www.researchgate.net/profil...e-model-under-different-charging-stresses.pdf
Number 1 cause is high battery voltage at the end, second one is battery charging speed. Any speed faster than 1c will degrade the battery much faster.
This is why i charge at 5w plus stop charging at 80% (unless i know I'll need 100% that day, where i fully charge, but for my usage 80% is more than enough for the usual day).
von_block said:
I use a 5 watts charger and the phone stay completely cold during the charge process.
Also there was a recent 2017 scientific paper that tested what degraded the battery. It's a really interesting read with many tested model.
https://www.researchgate.net/profil...e-model-under-different-charging-stresses.pdf
Number 1 cause is high battery voltage at the end, second one is battery charging speed. Any speed faster than 1c will degrade the battery much faster.
This is why i charge at 5w plus stop charging at 80% (unless i know I'll need 100% that day, where i fully charge, but for my usage 80% is more than enough for the usual day).
Click to expand...
Click to collapse
I charge my phone every 48h and when it is full I unplug it from wall charger. And I charge it from 20-25% (some time I go lower because of my usage)
It's your famous amazon wall charger?
Le_Combattant said:
I charge my phone every 48h and when it is full I unplug it from wall charger. And I charge it from 20-25% (some time I go lower because of my usage)
It's your famous amazon wall charger?
Click to expand...
Click to collapse
I download AccuBattery and charge my phone from 25% to 80% max. The app detect directly the stock capacity of my battery (3520mAh) but after my charge, the new capacity estimated is 2982%. Is the first value is reliable or I have to do some other charges?
You have to wait for about 10 cycles. It says in the application something like that.

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