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How do you handle your battery on a new phone?

Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app

RotasOpera said:
Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
just charge it when it needs it, dont worry about what % its at, and dont worry about running them right down... the phone will power down before it gets to a dangerous level for the battery.
dont leave it plugged in all the time when its sat at 100, dont leave it down at 0 and just forget about it for weeks on end...
thats all you need to know
---------- Post added at 12:49 AM ---------- Previous post was at 12:43 AM ----------
in fact... read here, and note the bit about wireless charging! http://gizmodo.com/how-to-take-care-of-your-smartphone-battery-the-right-w-513217256

Just enjoy your phone. Don't make it so difficult.
Sent from my AOSP on Mako

mitchdickson said:
Just enjoy your phone. Don't make it so difficult.
Sent from my AOSP on Mako
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Click to collapse
THIS IS XDA...
I suggest you lower your brightness to 0%, turn off the useless 3 cores, underclock to 100mhz, undervolt to 0.1v, turn off wifi/data/bt and be on airplane mode all the time and enjoy your month long battery life.

peachpuff said:
THIS IS XDA...
I suggest you lower your brightness to 0%, turn off the useless 3 cores, underclock to 100mhz, undervolt to 0.1v, turn off wifi/data/bt and be on airplane mode all the time and enjoy your month long battery life.
Click to expand...
Click to collapse
Rofl
Sent from my Nexus 4

dannstarr said:
...
[/COLOR]in fact... read here, and note the bit about wireless charging! http://gizmodo.com/how-to-take-care-of-your-smartphone-battery-the-right-w-513217256
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Click to collapse
I don't buy the bit about wireless charging. I've used my Nexus 4 with an LG wireless charger daily for almost a year now and haven't noticed any side effects with battery drain or overheating. In fact, I'd argue that the Nexus 4 and my Nexus 7 get hotter when plugged in than they do on the wireless charger. I have absolutely no reservations about using the Nexus 5 on my LG wireless charger when it arrives this week.

RotasOpera said:
Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Well the charge and discharge isn't necessary, IIRC that's only for older battery technologies like Ni-Cd batteries (Nickel-Cadmium). On the other side, you probably shouldn't let it discharge all the way since these are Li-Po and it could shorten their lifespan (apparently).

I just plug mine in whenever I'm near a charger.
I'm at work at my desk... its plugged into the charger.
I'm in my car... its plugged into the charger.
I'm at my girls house... its plugged into the charger.
I'm at home replying to xda / android central posts... its plugged into the charger.
This is what I've done with every phone I've had. I only had issues with one battery. I used to have sprint and I had the Samsung Galaxy S2 Epic 4g Touch. After about 8 months the battery got fat (they said it was called a swollen battery at the sprint store) and it kept turning off. They gave me a new battery at the sprint store and I continued with my routine above and never had any other issues with it or any other phones.

drx895 said:
Well the charge and discharge isn't necessary, IIRC that's only for older battery technologies like Ni-Cd batteries (Nickel-Cadmium). On the other side, you probably shouldn't let it discharge all the way since these are Li-Po and it could shorten their lifespan (apparently).
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Click to collapse
this is right on both accounts. you dont need to discharge it all the way, and doing so will reduce its life a little. i recently read about lithium poly batteries and the particular blog i was reading talked about running the battery down to 20% then charging it to 80%
i think when i first get the device i will use it down to 0%, charge it up to 100% uninterrupted and then hopefully keep it within that 20/80 range and probably doing a 0-100 refresh on the first of every month

If you guys want to read some in depth material on charging lithium batteries I would recommend reading this. Very informative.

dannstarr said:
dont leave it plugged in all the time when its sat at 100
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That's actually the concerning part when I do overnight charging, it's sat at 100 for quite a while!

Salty Wagyu said:
That's actually the concerning part when I do overnight charging, it's sat at 100 for quite a while!
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It's fine. Phone manufacturers know that people charge their phones overnight. That's why there is a trickle charge mechanism built into all phones nowadays.

u have to calibrate the battery too

Over the last month I've had somewhat of a binge of buying phones from Amazon and returning them for one reason or another and I've noticed that the first 1-3 days of phone ownership are usually the toughest on the phone / battery.
I've owned over the last 2 months (in order):
- S4
- HTC One (x3 as 2 were faulty out the box)
- LG G2
- S4
- N5
I've decided on the N5 as being the best for a number of reasons, but my favourite is price.
I havn't worked out whether it's a combination of new phone = more usage or new phone = requires battery calibration. But the N5 is the only device out the major players that actually made it through day 2 (the day after it came out the box) without a charge midway, infact it's ONLY JUST gone on the charger after some 28 hours of moderate (3 1/2 hours screen on) usage.
My gut feeling is that once you're out the first week just use the damn thing, but the first few charges can make a difference to how quickly the battery feels calibrated. My N5 came with 50% charge out the box, I ran it down to 0% and topped up charge as much as I could the first day. Once I got home I once more let it 0% and then did a full 0-100% recharge. Then my 28 hour experiment started and now I'll just use it as normal, and not worry.

I keep brightness at 50% to enjoy this beauty and I do not give a single **** about the battery.

Charge battery between 20% - 80%
Do not use phone while charging
Unplug charger when battery full

IF the Lithium-ion battery in my phone was to die, would it still work plugged in?

A theoretical question... IF the Lithium-ion battery in any modern phone or tablet etc was to completely die, would it still work plugged in?
But more importantly I want to know IF the battery in my phone was being completely dead right now, because of wear and tear and charging it alot, could I still use my phone with a micro USB powerpack/battery bank constantly connected to it?
Thanks

simonwela said:
A theoretical question... IF the Lithium-ion battery in any modern phone or tablet etc was to completely die, would it still work plugged in?
But more importantly I want to know IF the battery in my phone was being completely dead right now, because of wear and tear and charging it alot, could I still use my phone with a micro USB powerpack/battery bank constantly connected to it?
Thanks
Click to expand...
Click to collapse
generally speaking, no and no.

bweN diorD said:
generally speaking, no and no.
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Click to collapse
Alright. But I guess if there's like 10% of the capacity of the battery left, like a couple years from now, it could work maybe? If you have a phone with a non-changeable battery.

It is possible bro

Like the above said, if the battery is not completely dead and has some capacity left, it will work. But it case the battery is completely dead it will not.

simonwela said:
Alright. But I guess if there's like 10% of the capacity of the battery left, like a couple years from now, it could work maybe? If you have a phone with a non-changeable battery.
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Click to collapse
yes, if there is any battery left it will work, but you asked if it were possible if the battery was "completely dead", in which case my answer of no is accurate.
---------- Post added at 08:38 AM ---------- Previous post was at 08:37 AM ----------
droid_god said:
It is possible bro
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Click to collapse
if the battery is "completely dead", no, its not.

If battery is 100% dead then.
Grab a charger and multiply the current written on it with 100.
If the value is somewatn very close ro the battery mAh then that charget could so the trick.
And charger above 1.8A is really hard to get. So to charge bayteries more than 2000mAh can be hard.
Who knows what will work try out the method with 2800mAh . may be it works

droid_god said:
If battery is 100% dead then.
Grab a charger and multiply the current written on it with 100.
If the value is somewatn very close ro the battery mAh then that charget could so the trick.
And charger above 1.8A is really hard to get. So to charge bayteries more than 2000mAh can be hard.
Who knows what will work try out the method with 2800mAh . may be it works
Click to expand...
Click to collapse
your help is appreciated, but you shouldnt comment on such things you know nothing about.
i can get chargers over 1.8a all day no problem.
im not sure what you are trying to explain with all the charger vs battery stuff, but there was no question of an adequate charger.
you seem to be suggesting charging at a higher rate will some how revive a dead battery.
thats just not true. if the battery is dead from reaching the end of its life span as the op suggests in his query, it can not be revived.
further more, you could use a 1,000,000mah charger and it would do or fix nothing.
as long as the charger used can output the amount required by the phone, it doesnt matter how big the charger is beyond that.
there is a charging circuit in all devices that regulate the rate the batteries charge to prevent damage to the battery or device.
chargers dont push out the a or ma listed on them, that value of amperage is the maximum that can be pulled from it.

bweN diorD said:
yes, if there is any battery left it will work, but you asked if it were possible if the battery was "completely dead", in which case my answer of no is accurate.
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I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.

simonwela said:
I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.
Click to expand...
Click to collapse
its fairly rare to see a battery go completely dead from just being worn out. usually users will replace it when it gets to some point of limited usefulness.
sure some times they die from defect, and some times they die from users running down until 0 and the phone shuts off.
the latter trips a safety in the battery and makes it all but useless. this can be fixed, but thats another discussion.
i dont know how laptop batteries work with respect to charge.
phones though, i have seen from experience. when the battery is completely dead the phone will not start even plugged in, until it takes a small amount of charge, to be able to sustain the device on the battery while charging.
as long as your battery can sustain this minimal amount of charge, it should work while plugged in.
there really is no way to tell if, or how long, it will be able to maintain this low charge state. any stress on the battery from heavy use is likely to cause it to shut off until it reaches the minimum threshold again.
also when the battery is this weak, its possible for some sort of internal fault, resulting in the loss of ability to accept even the smallest of charge.
if your battery gets to this weak state, its best to just get a new one. even if its a cheap knock off that doesnt work as good as the old one used to. at least you will have something to work with, and not be worried from day to day if it will work or not.
i hope this clears things up for you

bweN diorD said:
its fairly rare to see a battery go completely dead from just being worn out. usually users will replace it when it gets to some point of limited usefulness.
sure some times they die from defect, and some times they die from users running down until 0 and the phone shuts off.
the latter trips a safety in the battery and makes it all but useless. this can be fixed, but thats another discussion.
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Click to collapse
Oh, that's good to know.
And I'm not so worried about that, I never let my phone drop below 10% and most often I charge it when it hits 20% and charge it up to 90%. I believe that's the best for the battery.
I am kinda regretting now that I bought a Xperia Z5C though, I don't like that the battery isn't changeable. But it's a great phone other than that, so I think it will be okay. And the battery is quite high capacity so I hope that it will work fine for at least 3 years, even if I charge it daily.
ETA: Interestingly, I had a Xperia Z1 before this phone, and I had the Z1 for a litte more than 2 years, and charged it almost everyday, and the battery on it was fine, or more than that, it was Good, I was getting 4-5 hours screen time on a charge just a month ago.. So??? I shouldn't be worrying about this anymore and instead enjoy my new phone
bweN diorD said:
i hope this clears things up for you
Click to expand...
Click to collapse
It did! Thank you.

simonwela said:
Oh, that's good to know.
And I'm not so worried about that, I never let my phone drop below 10% and most often I charge it when it hits 20% and charge it up to 90%. I believe that's the best for the battery.
I am kinda regretting now that I bought a Xperia Z5C though, I don't like that the battery isn't changeable. But it's a great phone other than that, so I think it will be okay. And the battery is quite high capacity so I hope that it will work fine for at least 3 years, even if I charge it daily.
ETA: Interestingly, I had a Xperia Z1 before this phone, and I had the Z1 for a litte more than 2 years, and charged it almost everyday, and the battery on it was fine, or more than that, it was Good, I was getting 4-5 hours screen time on a charge just a month ago.. So??? I shouldn't be worrying about this anymore and instead enjoy my new phone
It did! Thank you.
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Click to collapse
many users run the phone to 0 often without issue, but its really a horrible thing to do. there are many documented cases of it not turning on any more, however likely small compared to the amount of times its done. i was just making the facts known that the safety is there, and there is a risk of tripping it.
the problem would be compounded on a sealed phone, as the only fix requires you to take the battery out.
your charging cycle is very good for getting the max life from your battery :good: not too low and not too high.
many will argue this, and claim the benefit is very small, but according to the experts at battery university, not too low and not too high is the best way to get max life from these types of batteries. it keeps the stress levels while charging out of the highest ranges.

simonwela said:
I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.
Click to expand...
Click to collapse
Laptop chargers are a bit different from the android chargers.
Laptop chargers are designed to handel heavy charges which charges the battery at at its rated voltage. Like a 12volt laptop charger will charge a 12volt battery. Thats why with battery dead charger can handel all the work.
Android is a bit different.
Its chargers are rated of higher voltagea than battery.
Thats a good thing because at higher voltages we requir less ampere of current per hour to charge it.
I mean to say in previous post that if you grab a charger for your device just pullout the battery and use any other device battery for first boot. And when it start booting then you can just remove that battery and device will run on chrger.

droid_god said:
Laptop chargers are a bit different from the android chargers.
Laptop chargers are designed to handel heavy charges which charges the battery at at its rated voltage. Like a 12volt laptop charger will charge a 12volt battery. Thats why with battery dead charger can handel all the work.
Android is a bit different.
Its chargers are rated of higher voltagea than battery.
Thats a good thing because at higher voltages we requir less ampere of current per hour to charge it.
I mean to say in previous post that if you grab a charger for your device just pullout the battery and use any other device battery for first boot. And when it start booting then you can just remove that battery and device will run on chrger.
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Click to collapse
all batteries charge at a higher rate than they are rated at, phone, laptop, car, doesnt matter.
if they didnt, they would take a very long time to reach full charge, and could only do so if not being used.
i would like to see some proof that a phone will stay on booted, with no battery. post some links for me to review please.

I have done it i will send you a video ok

What about cpuZ?!

SofianeBlade said:
What about cpuZ?!
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Click to collapse
"what about" you read the forum rules, particularly the part that says not to spam threads with off topic posts.

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 OnePlus 6T can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

dash charge (now called fast charge) is crazy fast!!

Still, I would only recommend using that feature if there is a real benefit - i.e. time is of the essence. The battery will age quicker being dash charged all the time.

saw 60 percent at 35 minutes and 38 seconds, which is more or less in line with what OnePlus claims

Incredibly fast compared to my old Honor 8. One example I have is the first charge I did 5 days ago when I had bought it at a pop-up event here in Sweden. I had used it for about 1-2 hours with the screen on when I was setting it up and trying out the phone. Then when I plugged it in, it went from 36% to 75% in just 24 minutes. That's insanely fast
I've also noticed that just like OnePlus claims, the phone basically charges at the same speed with the screen on as if I would have had the screen off.

Bäcker said:
Still, I would only recommend using that feature if there is a real benefit - i.e. time is of the essence. The battery will age quicker being dash charged all the time.
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Can you provide any factual basis for this statement? Research or articles from established professionals in the field of battery charging?
Everything I've read from reliable sources state that the biggest impact on battery longevity is temperature. Repeated heating (or extreme cooling for that matter) will accelerate the "aging" process, as you put it. OnePlus has actually solved this problem by offloading the energy conversion that causes heat to the power brick, leaving the phone cool during charging (pretty ingenious). I've also read that not always charging the battery fully to 100% can prolong longevity, which is why you get charging strategies on laptops that will stop charging at 80% or 60% if you leave your laptop plugged in 24/7.
Point being, the ONLY way to slowly charge this device would be to use a third party charger and/or cable.
The reason I ask this, is that the manufacturer, OnePlus, clearly states in their documentation that comes with the phone or dash chargers to ONLY use the charger and cable that came with the phone.
Please charge the OnePlus Dash device only with the official Dash Power Adapter and Dash Type-C Cable. Using unauthorized adapter can be dangerous and may void your warranty.
Click to expand...
Click to collapse
I'm not completely opposed to the idea that this could just be a marketing ploy to get you to buy their own adapter and accessories, but again just want to know if there's any substantial proof that fast charging, by itself, degrades the battery faster, of if it's just a case of incorrect tribal knowledge.
Thanks.

You are correct that the rate of charge and discharge alone are not the only deciding factors on lipo life and certainly not the most decisive ones.
Excessive heat, especially on high charge levels, is the biggest factor for increased aging.
As you mentioned extreme charging levels (completely empty or full) will also contribute to faster aging, albeit the impact is not that extreme for these low current-draw Lipos used in our phones (as opposed to high-drain Lipos for instance).
Discharge and Charge at high rates will also contribute to the speed of aging, but not as much as heat.
When a lipo spends most of its time one medium charging levels at moderate temperatures and is only charged and discharged with low rates on it will have the longest service life.
This is common for all Lipos, just how much a low or high rate is for that particular battery differs (low drain, high capacity VS high drain, low capacity cell)
With Lipos everything is a compromise. Max and min voltages, max temperatures, max draw are values the manufacturer has chosen as the best compromise to reach the intended MTBF. All these numbers are not physical absolute barriers.

Charges 0-100% in 1hr 30 mins

Second place after SuperCharge (even first gen) from Huawei. Much better than QC 3.0

Klanac89 said:
Second place after SuperCharge (even first gen) from Huawei. Much better than QC 3.0
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Click to collapse
Nope. Super VOOC (OPPO) is hands down the fastest!

Gustav Karlsson said:
Nope. Super VOOC (OPPO) is hands down the fastest!
Click to expand...
Click to collapse
First of all, how many device support Super VOOC? How many device you can buy outside China with VOOC?
Super VOOC is 50W, the same like Huaweis SuperCharge 2.
Did you test SuperCharge 2 or VOOC?

My OP6T charges up to 100% in 1hr 22mins, so I don't charge overnight anymore. Go to sleep on 40% and charge in the morning

The combo of battery life and crazy fast charging is for the first time breaking me of the "plug it in overnight" habit that I have had since my first cell phone over a decade ago. I can keep my charger at my desk, plug it in for half an hour, and be at 100% with almost no chance of running out before the next morning. That means fewer vampire chargers around the house wasting power, and fewer charge cycles lost leaving the phone plugged in long after it's full. I wish I had swapped to OnePlus sooner - I think I have finally found a phone maker to call my favorite.

The charging Speed with "Dash charge" is amazing.
Within few minutes the battery is from 0% to over 50%!
Generelly I can only say: Amazing battery life. The best I ever had with a phone (except Nokia 3310).

I started to charge when the battery was 5%. It took around 1 hour 20 mins. I can say this to be quite faster when compared to the devices I have used previously, that too when the size of the battery is much bigger than the previous phones.

Illrigger said:
The combo of battery life and crazy fast charging is for the first time breaking me of the "plug it in overnight" habit that I have had since my first cell phone over a decade ago. I can keep my charger at my desk, plug it in for half an hour, and be at 100% with almost no chance of running out before the next morning. That means fewer vampire chargers around the house wasting power, and fewer charge cycles lost leaving the phone plugged in long after it's full. I wish I had swapped to OnePlus sooner - I think I have finally found a phone maker to call my favorite.
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The incredibly fast charging, coupled with the insane battery life (especially in dark mode) has made me totally OK with no wireless charging. I used to leave my phone on the charging pad at my desk most of the day, and on my nightstand charging pad overnight. I never had to worry about charging at all and plugged in maybe 20 times max over the last two years with my Note5. I said I'd never buy a phone without wireless charging, but the $350 or so I got for my Note5 exchange for this phone was just too tempting to overlook, particularly if it set up my family for the next two to three years (our current phones didn't have band 71 and Samsung said no more security updates). The only thing I was really worried about was wireless charging and whether or not the battery life and dash charging would be enough for me to overcome range anxiety.
It has.

So I'm thinking of keeping my dash charger at home ,and my 30w aukey charger at work ,I take it this will be ok to use ?

Gustav Karlsson said:
Nope. Super VOOC (OPPO) is hands down the fastest!
Click to expand...
Click to collapse
mate 20 pro, charges 4200 mAh in 1 hour.

Shady282 said:
mate 20 pro, charges 4200 mAh in 1 hour.
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Click to collapse
Oppo Find X (Lamborghini edition) charges 3300 mAh in 35 min...

combat goofwing said:
So I'm thinking of keeping my dash charger at home ,and my 30w aukey charger at work ,I take it this will be ok to use ?
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Click to collapse
It should be. If you are starting from full in the morning I doubt you will even need the charger are work except for very rare instances. I have gotten 7 hours SOT that was mostly gaming on this thing, moderate use you can easily get 24 hours, light use around 48.

Slow charging option with 120W charger.

Is there an inbuilt slow charging option in the phone? Or it charges at maximum all the damn time? 120 is good and all but I don't wanna replace such expensive phone just after 6 to 8 months because of battery. (as idk how we will get spare parts from this phone anyway)

Just use a different charger. 120w is maximum, so no problems in using a slower charger

Xiaomi says that the Mi 10 Ultra loses only 10% of its total battery capacity over 800 full charge-discharge cycles. Which means that in two years you'll hardly be able to notice any battery wear.

Actually with their technology they explain that battery should last far longer than the other phones out there right. There is always the possibility that Xiaomi lied or didn't anticipate something but let's assume that this is not the case. Embrace the innovation. Imo there is no point of buying the fastest charging phone and charge it slow.

xchatter said:
Actually with their technology they explain that battery should last far longer than the other phones out there right. There is always the possibility that Xiaomi lied or didn't anticipate something but let's assume that this is not the case. Embrace the innovation. Imo there is no point of buying the fastest charging phone and charge it slow.
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I intend to. However, it's a rare phone that Xaiomi won't be producing for global release. Which makes it harder to find spare batteries or repairs. And it's an expensive phone. I don't really care any the speed of charging. I want it to live longer and return on the investment I made.

sunilstark 1 said:
I intend to. However, it's a rare phone that Xaiomi won't be producing for global release. Which makes it harder to find spare batteries or repairs. And it's an expensive phone. I don't really care any the speed of charging. I want it to live longer and return on the investment I made.
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Click to collapse
I personally only charge my phone between 30-80% when I usually go out for the day and at times even charge between 30-60% in short bursts to preserve battery life when I'm home. I've read that this can preserve battery life considerably rather than full charges to 100% and discharges to zero.
A lot less heat is generated when only charging for 2-3 mins with the 120w charger.
I suspect many will not bother as people dont keep their top range phones for long.

If it helps just got the Xiaomi 55w wireless charger which I added a bundled Xiaomi 65w travel charger to work with it. I got this from Aliexpress from link below (had to pay additional £11 duty when delivered)
https://www.aliexpress.com/item/32921090938.html?spm=a2g0s.9042311.0.0.712e4c4dyKmaTf
Both items charge quickly but still slower than the 120w charger if it helps

speed of charging doesn't harm batteries, the heat does
and this has two batteries
both coated in graphene to dissapate heat
I'm not saying it'll last forever but the idea that 120w charing harms this is if not totally wrong, at least very overwrought due to the graphene

ToneLa said:
speed of charging doesn't harm batteries, the heat does
and this has two batteries
both coated in graphene to dissapate heat
I'm not saying it'll last forever but the idea that 120w charing harms this is if not totally wrong, at least very overwrought due to the graphene
Click to expand...
Click to collapse
The graphene isn't to dissipate heat, it's to lower internal resistance and allow a higher charging speed without creating too much additional heat.
Charging speed and heat both affect battery capacity. You could have your battery at near freezing and you'd still burn it out from charging at too high a speed over time.

@AerationCheese I've edited your post so that it reads better. Discussions are productive and essential, but if you feel someone doesn't have the full facts, please make sure you're not being offensive while stating so.
Regards,
shadowstep
Forum Moderator

I had the same problem and fix it by insert the 120W charger (mi 10 ultra) on other power socket in my house

-snip

I have a question on how to slow charge Pixel 4a

Since you already know that Pixel 4a supports 18W charging through USB C-C using USB-PD. Is it possible to charge the device a bit more slowly to keep the battery cool and possibly increase its life span?
A simple Google search showed that by using USB A-C cable, it won't be doing USB-PD quick charging instead it will charge using USB-BC (Battery Charging, a legacy standard) which will limit the power at around 7W.
By attaching USB-C end of the quick switch adapter(OTG) that came with the device to power adapter and connecting its other end (USB-A) to the device itself by running a USB A-C cable in between. Will this make the device charge slowly? Can anyone test this?

To find out for sure how much current is being used to charge your phone, you should install an app like this:
Ampere - Apps on Google Play
Measure the charging and discharging current of your battery.
play.google.com

JohnC said:
To find out for sure how much current is being used to charge your phone, you should install an app like this:
Ampere - Apps on Google Play
Measure the charging and discharging current of your battery.
play.google.com
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question is on how to slow charge the device

Well, just get a 1amp charger or use a non-quick charge cable.
The problem is that you won't know if an amazon description for a cable is accurate or not.
So, the way to make sure it is charging slow, is to use the app I mentioned.

I charge my pixel 4a with a 350 mah charger (it is an old Motorola charger in micro usb, i just put à micro usb to usb c little gizmo).
It is around 1,5 w and charge my pixel 4a in around 10 hours , if the pixel is completly empty. You can also use a 5w charger with a usb a usb c câble, it will be faster but warmer

Any brick or cable that doesn't support that protocol or can't supply enough amps will cause the power controller to default to slow charging.
Most fast charging capable phones also have a software option to disable fast charging regardless of the brick/cable's rating.
The real trick is getting it to fast charge when you want it to

My goal was to charge my pixel 4a during the night with the slowest method to keep my battery as Healthy as possible. The 350mah just give me that. ( i keep my phone four to five years so i Try to take care of my battery)

lop1 said:
My goal was to charge my pixel 4a during the night with the slowest method to keep my battery as Healthy as possible. The 350mah just give me that. ( i keep my phone four to five years so i Try to take care of my battery)
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Don't let it drop below 40% or charge beyond 72% in that case.
At some point it's just easier to replace the battery though

blackhawk said:
Don't let it drop below 40% or charge beyond 72% in that case.
At some point it's just easier to replace the battery though
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This seems more an urban legend this 40 72%, the charging processor take care of that For you.

lop1 said:
This seems more an urban legend this 40 72%, the charging processor take care of that For you.
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Li's prefer midrange usage with frequent partial charges. Cuts down the heat and the high cell voltage that degrades them faster. Degrades them only a fraction of a full charge cycle. Longer lifespan and less time charging for the same amount of mAh. Win-win.
Even today many confuse their requirements with NiCads Thinking they should fully charge/discharge them. Trying to convince some them otherwise is like talking an alcoholic out of drinking booze. "I've always done it that way..."

@blackhawk
but if someone who follows this 40-80 rule, how to reset battery stats?
Can it be done using ADB command?

ashutoshmn said:
@blackhawk
but if someone who follows this 40-80 rule, how to reset battery stats?
Can it be done using ADB command?
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I really don't use those stats at all. More Google hype that never proved all that useful for me.
I use Galaxy Labs Battery Tracker, the history log* of Accubattery as well as karma Firewall logs to track usage.
Occasionally you may want to do a calibration too as the % accuracy will drift over time.
*as long as my usage stays at >10%@ hour SOT, I'm not very concerned

blackhawk said:
I really don't use those stats at all. More Google hype that never proved all that useful for me.
I use Galaxy Labs Battery Tracker, the history log* of Accubattery as well as karma Firewall logs to track usage.
Occasionally you may want to do a calibration too as the % accuracy will drift over time.
*as long as my usage stays at >10%@ hour SOT, I'm not very concerned
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and by calibration, do you mean drain to 0 and charge to 100 every once in a while?

ashutoshmn said:
and by calibration, do you mean drain to 0 and charge to 100 every once in a while?
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Yeah, which I don't like doing. If falls way out of calibration you'll think you're at 20% when in fact you're at 7% for example.
Many say to repeat the calibration cycle 2 or 3 times for it to take.
If the battery has failed this can be a dangerous procedure. How do I know? Just had a battery failure but because of the case didn't see the back cover bulging. All the while I was happily torturing the bad cell for over a month begging it to do its worse
I was fortunate it didn't damage the display of my Note 10+ or worse.
If you encounter erratic fast charging, reduced battery capacity always suspect a battery failure and look for the telltale back cover bulge. These bag Li's can fail at any time especially as they get older.

BTW, people who are reading this, you can charge your 4a at 7.5W (5V*1.5A) using OTG adapter plugged into the charger and a USB A-C cable. The temp. increase of battery is way less than full fast charge of 18W.

ashutoshmn said:
BTW, people who are reading this, you can charge your 4a at 7.5W (5V*1.5A) using OTG adapter plugged into the charger and a USB A-C cable. The temp. increase of battery is way less than full fast charge of 18W.
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Also bare in mind that even when slow charging you never want the Li cell temp below 72°F, but 82F is a better bottom threshold temperature.
Li plating* can result from cold or hot (>100F) charging regardless of charging rate.
NEVER EVER attempt to charge an Li in near freezing temperatures*
*this can lead to a thermal runaway event

blackhawk said:
Also bare in mind that even when slow charging you never want the Li cell temp below 72°F, but 82F is a better bottom threshold temperature.
Li plating* can result from cold or hot (>100F) charging regardless of charging rate.
NEVER EVER attempt to charge an Li in near freezing temperatures*
*this can lead to a thermal runaway event
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Click to collapse
Billions of Li devices in service around the globe. If this was a 'thing' manufactures would prevent charging at low temps. Not debating the wisdom or detremental effects on longevity of charging at low/high temps. No need to season the spew with faux drama.

DB126 said:
Billions of Li devices in service around the globe. If this was a 'thing' manufactures would prevent charging at low temps. Not debating the wisdom or detremental effects on longevity of charging at low/high temps. No need to season the spew with faux drama.
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Do what you want... and you're own research*.
You offer zero good advice and a half mass flame attempt.
Lead me, follow me or get the hell out of my way.
*https://www.sciencedirect.com/scien...of the internal,also affect the battery power.
Temperatures I suggested are for optimum performance/longevity with minimum chance of Li plating from multiple sources. They are very conservative.
I just had a battery failure on my Note 10+ that started by slow charging it to 100% at about 45-50°F. Boom, just like that. Took over a month to realize what had happened but that's what started the whole mess. I was fortunate the swollen battery didn't damage my display.

Oy vey - self-designated expert in a box with a short fuse. Happy Mother's day, champ.

DB126 said:
Oy vey - self-designated expert in a box with a short fuse. Happy Mother's day, champ.
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WYSIWYU... call it like I see it.
Mum's been dead for decades.
Hope your's is not... spend some time with her.
You only get one.