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hey there..
got my S2 yesterday and had a wave before..
the accu is charging very slow..(from 19% - 100% about 3 hours)
and while it´s charging and i do something with the phone, or without doing sth, too. i become very hot..
is it normal?
newest firmware is on the phone..
greetz
well without telling us what temperature you are reaching we cannot really say, but the phone will get hot if you use it while charging, especially if you make a call while charging.
don´t have opportunity to know what it is exactly..
when i touch if feels like a cup of tee at the time you can drink it first..
what about the charging time?
greetz
MoraX1992 said:
got my S2 yesterday and had a wave before..
the accu is charging very slow..(from 19% - 100% about 3 hours)
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Click to collapse
This is pretty normal, Li-Ion-batteries can´t be charged fully under 3h. Devices that claim to charge the battery in just 1 or 2 hours will charge it only to about 80% and then tell it is fully charged.
You can charge a Li-Ion-battery very fast from 0 to about 75-85%, if the power-adapter delivers enough energy this can be done in about 1h.
But to fill the rest up to 100% you need another 2-3h.
Li-Ion-cells are charged in 2 stages.
In the first stage charging is done with a current between 0,5C and 1C. C in this case means capacity, so our 1,6Ah-battery will be charged with 0,8-1,6A.
The voltage of the cell rises from about 3V when completely flat (you shouldn´t discharge a Li-Ion-cell below 3V or it will be damaged permanently, when discharging below 2,7V the cell becomes unstable and could explode when being charged, therefore a safety-circuit should prevent any further charging when the cell-voltage was too low) to about 4,2V.
When the cell reaches 4,2V it is charged to about 75-85%.
If you would charge further at this rate, the cell-voltage would rise even more and significantly reduce the life span of the battery.
The supplied power-adapter delivers 0,7A at 5V, so with some quick calculations it will not be able to charge the battery up to this stage below 1h.
If all the power from the adapter can be used for charging (which means no other phone-activities which will consume power) it can reach the saturation-stage in approximately 1,5h.
To completely charge the battery stage 2 follows, this is also called the saturation-stage.
During this stage the charging-circuit will hold the cell-voltage constant and reduce the charging-current accordingly.
If you want to charge the battery completely the rather weak power-supply doesn´t matter that much (at least as long as you don´t use the phone otherwise and take a significant amount of power away from charging). The faster you charge in stage 1, the longer the saturation-stage will last. The whole charging-time is not influenced a lot.
To fully charge the battery you will always need about 3-4h. Also the difference would not be great whether you begin charging at 0%, 20% or 30%.
Charging the first few % will always be very fast and gets slower the fuller the battery already is. The saturation-stage will take about 50-75% of the overall charging-time, so there is no significant difference whether the battery is completely flat or still has some charge left.
and while it´s charging and i do something with the phone, or without doing sth, too. i become very hot..
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Click to collapse
Are you just charging the phone or using it the same time? If you are just charging it, it definitely shouldn´t get hot, charging Li-Ion-cells has a very high efficiency-factor (about 95-99%), so there shouldn´t be much heat generated from the charging.
If you are using it the same time, it is pretty normal that the phone is getting warmer.
It is also important what is getting hot. Is it really the battery (the lower half of the phone) or rather the SoC (which seems to be placed just below the camera)
If it isn´t the battery, it can´t be in direct relationship with the charging. If the whole phone is getting warm, it is an indication, that the SoC is doing some work and generating the heat.
If only the battery gets hot (and not just slightly warm) this can be a problem. Either the charging-current is too high (quite unlikely, with the weak power-adapter) or something else is wrong, which will at least cause a shorter life-time of the battery.
It is normal that the battery gets a bit warmer than the surroundings, especially if the battery is in the early phase of stage 1, where it is charged pretty fast.
While the charging will not produce much heat, the battery is in a plastic-shell, so it can´t be transported away that fast.
But if it gets really hot you have a serious problem. But I doubt this, the phone actually has a protection, that will not charge the battery above a certain temperature-level.
MoraX1992 said:
and while it´s charging and i do something with the phone, or without doing sth, too. i become very hot..
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Click to collapse
If battery gets a little bit hot, it's normal, if you get hot then i don't know
Is anybody having slow charging problems when the screen is still on?
A couple of days ago it took over an hour to charge from 5% to 25%, all I was doing was social media browsing. As soon as I put the phone down with the screen off the % jumped to 85% in around 30 minutes. I took my V20 back to the LG shop and in the end they replaced the unit as they could see the problem but was unsure what it was. They then tested the new one just before I was leaving and it was again taking nearly 90 seconds or more to charge 1% on the new device straight out the box. They went and give me a new battery and said to test it out for a few days before going back to them. It was there first complaint about the charging speed.
Again, while not using the device the charging is quick on the new device, but slow when the screen is on and in use. I will give it a couple of days and take some screenshots of the battery stats if it continue. It did say on my old device while connected that it was 5hr 45min until fully charged which is obviously wrong.
No weird apps on there that could be causing it as far as I'm aware, unless it's an LG pre-loaded one.
Strange that the new phone is doing the same.
Sounds like that's how the V20 manages battery charging. It charges faster with the screen off. And a lot faster with the whole thing off.
Same thing happens to me. When using Waze app. Even if it says fast charging, its noticeably slower than when i had my note 5 or 7.
Maybe its "heat management"? Im just guessing. Maybe to prevent it from heating fast with the screen on + quick charge
I think it's QC 3.0 - it does it so as to not overheat the battery. I have it happen on mine too when using a QC 3.0 charger.
When using a QC 2.0 charger(Samsung charger) it chargers a bit faster while screen on but the phone starts to get noticeably warm.
It is probably a thermal management thing. My N6 Shamu got very warm on QC2 with screen on.
The v10 does the same thing it's probably because the screen is the biggest battery drain on the phone so using it obviously would cause a significant charge delay.
Sent from my LG-H901 using XDA-Developers mobile app
Normal.
Hmm. I notice charging is slower when it's the temperature is higher.
I just bought a Spigen Rugged Armour case and I think it's trapping heat during usage. And when I start charging, it's not as quick as I had hoped.
I'm going to observe a little more.
Alright. I've done a few days of observations. It definitely charges a lot slower when the screen is on. I used the Ampere app and it charges around 900mAh max, screen on.
When it's off, it averages around 2800mAh, depending on temperature too. Once it hits close to 40 Celsius, it drops to 2000mAh or lower.
With the phone powered down, it charges faster than just screen off. How much faster, I am unable to measure without using some special hardware.
Overall, I'm quite pleased with the charging performance.
Turn your screen brightness down. Also I noticed restarting the phone helps with it to charge faster. Could just be a glitch in charging software
Sent from my LG-H910 using Tapatalk
Hello, so I just got a new Moto X style about a month ago, I need your advice from something, should I charge my phone at 30-40%? if yes then will it have long term damage/worn out my phone?
Thank you
The golden rules are
Don't ever go below 10%
The battery is happiest (most chemically stable) around 40%
Try to spend as little time above 90% as practically possible, especially when charging/using the device. This means never leaving the device plugged overnight
Avoid heat i.e., Do not overtax the phone in an environment like a small, hot room; Avoid simultaneous charging/GPS in the car with the phone in direct sunlight
To combine the last two items, especially avoid high temperatures at higher battery levels. This will degrade the battery very quickly
I've also read stuff about the discharge depth. Something to the tune of discharging the battery from 80% to 60% before charging is better than discharging from 80% to 40% before charging. I've never paid that much attention, because nobody wants to charge their phone 3 times a day, but apparently topping up is better than charging from near empty.
I've had my Pure for a little more than 6 months now. I have been consistently plugging in when my battery hits 30%. My battery life is as good as it has always been.
QuantumFluxx said:
The golden rules are
Don't ever go below 10%
The battery is happiest (most chemically stable) around 40%
Try to spend as little time above 90% as practically possible, especially when charging/using the device. This means never leaving the device plugged overnight
Avoid heat i.e., Do not overtax the phone in an environment like a small, hot room; Avoid simultaneous charging/GPS in the car with the phone in direct sunlight
To combine the last two items, especially avoid high temperatures at higher battery levels. This will degrade the battery very quickly
I've also read stuff about the discharge depth. Something to the tune of discharging the battery from 80% to 60% before charging is better than discharging from 80% to 40% before charging. I've never paid that much attention, because nobody wants to charge their phone 3 times a day, but apparently topping up is better than charging from near empty.
I've had my Pure for a little more than 6 months now. I have been consistently plugging in when my battery hits 30%. My battery life is as good as it has always been.
Click to expand...
Click to collapse
IMO charging overnight dont do anything to the battery, phone stops charging at 100% and start to use energy from the charger, but im with you with the 10%.
I think all these "rules" are all just bunk and superstition... If you make it through the day, plug it in overnight, and start again in the morning, if not when the battery is low, charge it when it is convenient, don't be scared of "overcharging" as that isn't really possible anymore with electronics in batteries and devices. The device is meant to be used, not babied.
These lion lipm battery do not actually ever charge to their full capacity. This is by design so 100 % is really around 80 in reality and 0 is around 8 to 10%. Again this is by design the chipset monitors the battery temperature and charge load as well as discharge load and compensates for heat and load. All this crap about charging at different rates and in different situations is bunk written by people that don't realize battery design is constantly changing. And since quick charge 1 things have changed a ton.
RK2116 said:
IMO charging overnight dont do anything to the battery, phone stops charging at 100% and start to use energy from the charger, but im with you with the 10%.
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Click to collapse
Sooo does this mean I can charge my phone over night using the Turbo charger 25W that comes with the phone?
acejavelin said:
I think all these "rules" are all just bunk and superstition... If you make it through the day, plug it in overnight, and start again in the morning, if not when the battery is low, charge it when it is convenient, don't be scared of "overcharging" as that isn't really possible anymore with electronics in batteries and devices. The device is meant to be used, not babied.
Click to expand...
Click to collapse
So does this mean i can charge it over night with the turbo charger?
HerySean said:
So does this mean i can charge it over night with the turbo charger?
Click to expand...
Click to collapse
Yes
acejavelin said:
Yes
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Click to collapse
+1
---------- Post added at 06:55 PM ---------- Previous post was at 06:54 PM ----------
HerySean said:
Sooo does this mean I can charge my phone over night using the Turbo charger 25W that comes with the phone?
Click to expand...
Click to collapse
Yes.
I won't argue with anyone here, but I would advise all of you to research lithium ion battery technology. The OP asked how to prevent long term damage to his battery. My friend and I bought our Pure's at the same time. I charge the way that I indicated, he leaves his phone plugged in all night, every night. We're both on Verizon, and I've noticed that his battery drains much more quickly than mine does.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Take care, all.
QuantumFluxx said:
I won't argue with anyone here, but I would advise all of you to research lithium ion battery technology. The OP asked how to prevent long term damage to his battery. My friend and I bought our Pure's at the same time. I charge the way that I indicated, he leaves his phone plugged in all night, every night. We're both on Verizon, and I've noticed that his battery drains much more quickly than mine does.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Take care, all.
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Click to collapse
Have you verified that he is running exactly the same apps as you with exactly the same service throughout the day. If not then your supposing that charging is the issue is simply a guess. The only way to determine exactly would be a to set them up exactly the same and run them exactly the same in exactly the same conditions for a week or more and log the battery life..
autosurgeon said:
Have you verified that he is running exactly the same apps as you with exactly the same service throughout the day. If not then your supposing that charging is the issue is simply a guess. The only way to determine exactly would be a to set them up exactly the same and run them exactly the same in exactly the same conditions for a week or more and log the battery life..
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Click to collapse
I run more than he does. He is older, and does not use social media. I use FB/Messenger, Snapchat, Twitter, and Instagram with push notifications enabled. Our standby battery drains are very different from 100%. His device hits 90 while mine is reading 94. The devices are physically next to one another. I only know this because he's at my house every weekend. He always plugs my phone in when he plugs in his even though I've told him not to a hundred times. There are probably other factors involved, but I always attributed the difference to him constantly leaving his phone plugged in for hours on end.
Have you looked at his screen timeout? Screen brightness. Or checked to see if he has a misbehaving app? Does he have wifi at his house ? Or is his doing all it's updates at your place? See there are tons of variables that have nothing to do with charging that are simply more likely to be causing the issue you are noticing
autosurgeon said:
Have you looked at his screen timeout? Screen brightness. Or checked to see if he has a misbehaving app? Does he have wifi at his house ? Or is his doing all it's updates at your place? See there are tons of variables that have nothing to do with charging that are simply more likely to be causing the issue you are noticing
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Click to collapse
I mean, I wouldn't describe what I'm observing as an 'issue'. I understand where you're coming from though. I have gone to war against errant battery drains in the past. Lollipop/Marshmallow's mobile radio drain is something I surely won't miss. He does have Wifi at his house for app updates and such.
Just for the clarity's sake, we're talking about:
2 identical devices, running the same version of Android and the same ROM, which are connected to the same mobile and wifi networks, in the same physical location - so service quality is not a variable, unless there is a hardware issue. Both devices are [simultaneously] charged to 100%, and then they are unplugged and their screens remain off. Upon checking both devices a little while later, mine is at 94% while his is at 90%. My device is encrypted, rooted, has custom kernel settings relating to the governor, read ahead, and entropy, and runs various GCM social/messaging apps, and has an extensive Tasker setup. His device is untouched. Both devices have been fully drained and recharged at least once in the past 60 days.
I have looked at his battery usage, which I log with 3C Toolbox. There is no excessive drain from any apps, the cell radio, the kernel, etc...
Regardless of what is causing it, the observable evidence is curious.
QuantumFluxx said:
I won't argue with anyone here, but I would advise all of you to research lithium ion battery technology. The OP asked how to prevent long term damage to his battery. My friend and I bought our Pure's at the same time. I charge the way that I indicated, he leaves his phone plugged in all night, every night. We're both on Verizon, and I've noticed that his battery drains much more quickly than mine does.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Take care, all.
Click to expand...
Click to collapse
Not saying you are wrong, but the scenario you give is at best circumstantial with the given info. It does not account for other factors such as apps installed, network connectivity, how the phone is being used, etc.
Screen brightness can drastically change how long until you have to recharge. Mine is usually only 1/4 of the way up.
not talking really about sot here, but about the battery health over months/years
I can read some posts where people report a very bad sot, when the Z play is normally a very good device regarding battery, There are several possible causes of course, the rom, the apps used... and battery degradation over months.
According to a studie, a lithium ion battery loose 10% every 250 charge cycles, there is some rules to help to not loose more :
A partial discharge reduces stress and prolongs battery life.
- avoid charge over 90%
- avoid use below 20/15%
- Battery lithium ion hate heat, so when charging avoid use your phone, can add heat from cpu mostly with games, and you will charge/heat longer
- the turbo charger make the phone heat like hell, and again lithium ion batteries can't stand the heat, it's a fact, Somes will say it's normal because it is sold like that. I won't take the risk if not needed, so i use only the turbo charger when urgency, otherwise i use my lenovo tablet charger (5,2v / 2A), that charge quite fast too with no heat at all.
I wish there was an option to turn off fast charging like on Samsung phones...
I don't know if we got different phones, but I always charge phone with stock turbocharger and its never hot - when I'm not using it during charging is not even warmer than normally, when I use phone during charging it's little warm.
Baronik said:
I don't know if we got different phones, but I always charge phone with stock turbocharger and its never hot - when I'm not using it during charging is not even warmer than normally, when I use phone during charging it's little warm.
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Click to collapse
really ?? mines heat a lot too with turbocharger and without using it during charge
Mine too, but i put it on the stone cold floor and it's much better. You should do this.
fablebreton said:
not talking really about sot here, but about the battery health over months/years
I can read some posts where people report a very bad sot, when the Z play is normally a very good device regarding battery, There are several possible causes of course, the rom, the apps used... and battery degradation over months.
According to a studie, a lithium ion battery loose 10% every 250 charge cycles, there is some rules to help to not loose more :
A partial discharge reduces stress and prolongs battery life.
- avoid charge over 90%
- avoid use below 20/15%
- Battery lithium ion hate heat, so when charging avoid use your phone, can add heat from cpu mostly with games, and you will charge/heat longer
- the turbo charger make the phone heat like hell, and again lithium ion batteries can't stand the heat, it's a fact, Somes will say it's normal because it is sold like that. I won't take the risk if not needed, so i use only the turbo charger when urgency, otherwise i use my lenovo tablet charger (5,2v / 2A), that charge quite fast too with no heat at all.
Click to expand...
Click to collapse
I suggest following[1] battery charge limit app ... It works fine ( root required )
[1]
https://forum.xda-developers.com/android/apps-games/root-battery-charge-limit-t3557002/
or just use a regular 1A/2A charger at home and only use turbocharger on the go
I've also done research into this, as this is the first phone I want to keep more than a year and a half. My conclusions from multiple sources are as follows (quite similar to your findings):
- Don't charge over 90%, but really you shouldn't charge past 80-85% (choose your percent based on how much you will need for the day)
- As you said, don't go below 20%, but really you shouldn't go lower than 40%.
From what I can tell, the 80-40 rule seems to be a legitimate and fairly reliable rule of thumb for smartphone batteries (don't go below 40%, don't charge past 80%).
Battery University has a lot of good info, and they state that smaller discharges and recharges are generally better for the battery. I've been able to get a full day or two of usage from my Z Play by starting with 90% and not going lower than 35-40%.
Guys I need some help pls.
I ordered new battery, yesterday I opened phone carefully and replaced old battery, all went smooth.
But when try to switch on phone doesnt start. When connecting to psu it starts normally, battery shows 100% and not charging. If remove cable phone turns off instantly.
I wiped cache, dalvik, batterystats, no luck. Tried different psu, the same
I put old battery back and phone turns on and works ok, same as before.
Is possible that new battery coud be completely dead?
The new battery printed manufactured date is older than my current battery. 06-2015 vs 12-2015.
Is there anything else I should try , beside rma?
Thank you
csjneek said:
Guys I need some help pls.
I ordered new battery, yesterday I opened phone carefully and replaced old battery, all went smooth.
But when try to switch on phone doesnt start. When connecting to psu it starts normally, battery shows 100% and not charging. If remove cable phone turns off instantly.
I wiped cache, dalvik, batterystats, no luck. Tried different psu, the same
I put old battery back and phone turns on and works ok, same as before.
Is possible that new battery coud be completely dead?
The new battery printed manufactured date is older than my current battery. 06-2014 vs 12-2014.
Is there anything else I should try , beside rma?
Thank you
Click to expand...
Click to collapse
Yes, there's a battery thread, where good replacements are linked. A 3 year old battery isn't a good replacement. Give it back to the seller. And did you try to put your "new battery" a second time in your phone, may you just didn't connect the cable correctly at first try. ???
coremania said:
Yes, there's a battery thread, where good replacements are linked. A 3 year old battery isn't a good replacement. Give it back to the seller. And did you try to put your "new battery" a second time in your phone, may you just didn't connect the cable correctly at first try. ???
Click to expand...
Click to collapse
Thanks for reply,
Yes I did with case open swapped old and new one multiple times to be sure, old one turns on and charging, new one don't.
csjneek said:
Thanks for reply,
Yes I did with case open swapped old and new one multiple times to be sure, old one turns on and charging, new one don't.
Click to expand...
Click to collapse
Then buy a better replacement, may not a 3 year
old one
Do search for " Cameron sino" for nexus 6p on either eBay or Amazon and buy that battery. I got mine for 25.00 . My phone charges to 100%, discharges slowly and doesn't shut off anymore at less than 20% battery like it did before. Accubattery app on playstore shows my battery health at 97% now ,the stock one was at 67% health. It does take a couple of full charges and full discharges to manage that health readout. Cameron sino seems to be the best one I've had so far. Just make sure you charge it to 100 and use it till it shuts off the first few times and profit. Trains the battery to fully charge and discharge . People make the mistake of charging when it isn't dead and that slowly suck the life out of your new batteries.
wmills said:
Just make sure you charge it to 100 and use it till it shuts off the first few times and profit. Trains the battery to fully charge and discharge . People make the mistake of charging when it isn't dead and that slowly suck the life out of your new batteries.
Click to expand...
Click to collapse
This might be true for nickel cadmium and nickel-metal hydride batteries , but it doesn't apply to lithium ion batteries. If anything, it's better to charge the battery when it still has ~20% left and stop charging around 80%. Lithium ion batteries don't like being too discharged or too charged as it causes them to wear out faster.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
https://lifehacker.com/smartphone-battery-myths-explained-1735327089
https://www.cnet.com/how-to/true-or-false-battery-myths-that-need-to-die/
http://www.androidauthority.com/battery-myths-688089/
Whoa great been doing all wrong ,you are a wealth of knowledge
wmills said:
Whoa great been doing all wrong ,you are a wealth of knowledge
Click to expand...
Click to collapse
After quickly destroying the battery in my Galaxy Nexus I decided to research ways to prolong the life of the battery in my smartphone, especially since the phone I replaced it with (Nexus 6) didn't have a removable battery. So far they've worked great. Several tips I have are:
1. Plug in when you get to ~20-25%. If you want to be super extreme you can use an app like Battery Charge Limit to stop charging at 80%. Like I said earlier, discharging/charging too far is bad for the battery.
2. Don't use fast charging. This heats up the battery and wears it out faster. I've used the 1 amp charger from my Galaxy Nexus on my Nexus 6 and 6P and it has definitely helped prolong the life of the battery.
3. Don't use the phone while charging. This causes it to heat up and wears out the battery faster. Light things like texting or browsing XDA with their app won't heat it up too much, but gaming or installing ROMs while plugged in is very bad.
4. Don't charge the phone overnight while it's on. Obviously after the phone reaches full capacity it stops charging, but if your phone is on and running stuff in the background the battery will drain. When it drops to 98% it starts to trickle charge again until it reaches full capacity. This cycle of charging and draining will occur several times throughout the night and adds unnecessary wear cycles to the battery. It's best to charge while the phone is off to avoid this cycle.
5. Don't let the battery get too hot or too cold. Low temperatures can be just as harmful to batteries as high temperatures. If it's 100°F or 0°F outside and your battery is getting very hot or very cold it's best to just leave the phone in your pocket until you're in a place with a more reasonable temperature, such as inside a building or something. Lithium ion batteries prefer a happy medium, which is usually around room temperature (~68°F).
6. Keep the phone cool while doing CPU intensive tasks that cause it to heat up. When I install a ROM and boot it for the first time, wipe cache/dalvik after installing something, run the auto patcher in WakeBlock, or anything else that causes the CPU to run at a high frequency for prolonged periods of time I remove my phone from its case and place it in front of a fan on high speed. This keeps it from getting too hot, but doesn't let it get too cold. Placing your phone in the fridge/freezer will also keep it cool, but lets the battery get too cold, so that method is not recommend.
7. I use an app like EX Kernel Manager to display the battery/CPU temperatures in the notification area. If I notice the temperatures are getting too high or too low I stop using the phone until it cools down or I'm somewhere warmer. This can be annoying on Oreo because you get notifications of apps running in the background, but that's pretty easy to block
Keeping the phone cool can also help avoid the defect in the Snapdragon 810 that causes the BLOD (boot loop of death), which usually occurs when the solder holding the processor to the mother board develops cracks.
Based on posts I've seen in this forum most people begin to experience battery or boot loop issues after about a year or so. I've had my 6P for about a year and have not had any battery, heat, or boot loop issues. In my experience, taking care of your phone and being "extra nice" to it is the key to prolonging its life. After 2 years of using my Nexus 6, battery life on the day I sold it was just as good as day I unboxed it. I don't want to jinx myself, but the same goes for my 6P. After almost a year of use I can still go 16+ hours off the charger with 4+ hours of SOT and 30% or more left in the battery when I plug it in at night.
I'm gonna try this
Face_Plant said:
After quickly destroying the battery in my Galaxy Nexus I decided to research ways to prolong the life of the battery in my smartphone, especially since the phone I replaced it with (Nexus 6) didn't have a removable battery. So far they've worked great. Several you're l tips I have are:
1. Plug in when you get to ~20-25%. If you want to be super extreme you can use an app like Battery Charge Limit to stop charging at 80%. Like I said earlier, discharging/charging too far is bad for the battery.
2. Don't use fast charging. This heats up the battery and wears it out faster. I've used the 1 amp charger from my Galaxy Nexus on my Nexus 6 and 6P and it has definitely helped prolong the life of the battery.
3. Don't use the phone while charging. This causes it to heat up and wears out the battery faster. Light things like texting or browsing XDA with their app won't heat it up too much, but gaming or installing ROMs while plugged in is very bad.
4. Don't charge the phone overnight while it's on. Obviously after the phone reaches full capacity it stops charging. If your phone is on and running stuff in the background, the battery will drain a little. When it drops to 98% it starts to trickle charge again until it reaches full capacity. This cycle of charging, draining, and recharging will occur several times throughout the night and adds unnecessary wear cycles to the battery. It's best to charge while the phone is off to avoid this cycle.
5. Don't let the battery get too hot or too cold. If it's 100°F or 0°F outside and your battery is getting very hot or very cold it's best to just leave the phone in your pocket until you're in a place with a more reasonable temperature, such as inside a building or something
6. Keep the phone cool while doing CPU intensive tasks that cause it to heat up. When I install a ROM and boot it for the first time, wipe cache/dalvik after installing something, run the auto patcher in WakeBlock, or anything else that causes the CPU to run at a high frequency for prolonged periods of time I remove my phone from its case and place it in front of a fan on high speed. This keeps it cool, but not too cold, and doesn't allow it to get too hot. Don't place it in the fridge/freezer. Doing that will cause the battery to become too cold.
7. I use an app like EX Kernel Manager to display the battery/CPU temperatures in the notification area. If I notice the temperatures are getting too high or too low I stop using the phone until it cools down or I'm somewhere warmer. This can be annoying on Oreo because you get notifications of apps running in the background, but that's pretty easy to block
Keeping the phone cool can also help avoid the defect in the Snapdragon 810 that causes the BLOD (boot loop of death), which usually occurs when the solder holding the processor to the mother board develops cracks.
Based on posts I've seen in this forum most people begin to experience battery or boot loop issues after about a year or so. I've had my 6P for about a year and have not had any battery, heat, or boot loop issues. In my experience, taking care of your phone and being "extra nice" to it is the key to prolonging its life. After 2 years of using my Nexus 6, battery life on the day I sold it was just as good as day I unboxed it. I don't want to jinx myself, but the same goes for my 6P. After almost a year of use I can still go 16+ hours off the charger with 4+ hours of SOT and 30% or more left in the battery when I plug it in at night.
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Definitely going to try these methods on my brand new Nexus 6p. Thanks for posting that. Very helpful.