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Will the battery be damaged if I leave the power connected after the battery is 100%? Thanks!
No it will not damage the battery. The lithium ion battery in the Note 10.1 has a circuit that stops the battery from charging, once it reaches 100%
*Omnipresent* said:
No it will not damage the battery. The lithium ion battery in the Note 10.1 has a circuit that stops the battery from charging, once it reaches 100%
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Nope. The only possible issue is that Li-Ion batteries degrade in capacity faster when they are stored at high charge levels.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Of course frequent charge/discharge cycles ALSO affect this. I'm beginning to consider adding something like Ezekeel's BLX to CM - which cuts off charging early so the device, for example, only charges up t0 80% or so. This lets you keep a lower average charge AND reduce the number of charge/discharge cycles.
Entropy512 said:
Nope. The only possible issue is that Li-Ion batteries degrade in capacity faster when they are stored at high charge levels.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Of course frequent charge/discharge cycles ALSO affect this. I'm beginning to consider adding something like Ezekeel's BLX to CM - which cuts off charging early so the device, for example, only charges up t0 80% or so. This lets you keep a lower average charge AND reduce the number of charge/discharge cycles.
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Thanks for these responses!:good:
For some reason once my phone hits 8% battery life it drops to 2% immediately.
This happens on viperxl & cm, so its not ROM related.
Any ideas on how to fix it? Is there a way to recalibrate the battery ?
Sent from my One X using Tapatalk
There's nothing wrong with your battery. That's normal behaviour when the battery is at such a low level. The battery percentage is never an exact value, it's only an estimate based on the current voltage that is being reported by the battery. When a battery is that low it isn't abnormal at all for it to jump down drastically like that.
On a side note, unless you're performing an initial charge cycle after flashing a new ROM you really shouldn't let your battery deplete to such a low level. With this specify type of battery technology it's quite bad for it and will actually affect the long term life of the battery. The preferred method of charging is to do regular top up charges from anywhere between ~80% and ~30% battery level right up to the 100% mark.
Sent from my Evita
The_Zodiac said:
Any ideas on how to fix it? Is there a way to recalibrate the battery ?
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There is no such thing as "recalibrating the battery". This term is sometimes used by folks who confuse Li ion technology with old NiCad batteries that need to be "conditioned".
What you may mean is recalibrating the battery meter, which has to do with software, not battery chemistry. Battery meter is usually not accurate after a ROM flash, and should be recalibrated. This is done by charging to 100% (let it sit for half hour or so at full, to ensure any saturation charge is achieved) then deplete until around 10 or 20%.
Other than that, the meter is as accurate as its going to get. As timmaaa already stated, the battery % is just an inaccurate approximation of the amount of usage left that corresponds to various voltages. It often can't be trusted to be accurate to within 1% (or even 5%) increments. And also as timmaa stated, you should not be draining your battery that low on a frequent or habitual basis, as its harmful to the long term life of the battery. Charge frequently.
My last phone was a Samsung Galaxy Note I717, which is now on its last legs.
Its battery bulges, it doesn't hold a charge for very long, and frequently crashes, only to reboot thinking the battery is empty.
Apparently, my habit of leaving my phone plugged into my computer may be at fault.
I'd like to do better with my OPO, especially since its battery is not replaceable.
What advice do you recommend to maintain best battery health for the OnePlus?
This forum has already many links regarding battery life but i would advice to charge before you reach under 40%, let the battery discharge below 5% atleast once a month and never leave it to charging overnight.
Peri- said:
This forum has already many links regarding battery life but i would advice to charge before you reach under 40%, let the battery discharge below 5% atleast once a month and never leave it to charging overnight.
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i always had my phones at charger over night. it didn't any harm.
I also (still have my i717 Note) , had the bulging battery (hint ? buy a new battery!) , as far as battery life goes there lots of way to improve it , apps like FaceBook need to be shut down everytime your not on it! Try running your phone all day without a bloater like fb and see the difference , I use DU battery app works well and helps you learn about the battery! My oPo is the best phone Ive ever had hands down , if you have 4.4.4 try switching to ART from Dalvik in the developers menu , you should see a difference in the battery !
Sent from my HTC Dream
Notor1ouS- said:
i always had my phones at charger over night. it didn't any harm.
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Maybe no harm that you noticed, but it does in fact do harm. The longer a lithium battery spends at its peak voltage (100%, 4.2v), the faster the battery will degrade. Leaving your phone on charge overnight means the device is sitting at peak voltage for hours. This affects your long term battery life.
Transmitted via Bacon
timmaaa said:
Maybe no harm that you noticed, but it does in fact do harm. The longer a lithium battery spends at its peak voltage (100%, 4.2v), the faster the battery will degrade. Leaving your phone on charge overnight means the device is sitting at peak voltage for hours. This affects your long term battery life.
Transmitted via Bacon
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Wow I've been doing that all my life. Is there anyway for the phone to stop charging when it reaches 100? I just like to go to sleep and wake up to full battery ready for the day.
cheshyre said:
My last phone was a Samsung Galaxy Note I717, which is now on its last legs.
Its battery bulges, it doesn't hold a charge for very long, and frequently crashes, only to reboot thinking the battery is empty.
Apparently, my habit of leaving my phone plugged into my computer may be at fault.
I'd like to do better with my OPO, especially since its battery is not replaceable.
What advice do you recommend to maintain best battery health for the OnePlus?
Click to expand...
Click to collapse
Don't let the device sit at 100% on the charger (no charging overnight).
Do frequent small top-up charges, lithium batteries perform best with this type of charge (try to keep it above ~40%).
As another member suggested you should allow the device to discharge to at least the low battery warning, followed by a full charge to 100%, about once every 40 charge cycles (roughly once a month is fine).
Try not to use apps/games that are battery intensive whole the device is charging.
Read these excellent articles:
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Transmitted via Bacon
---------- Post added at 08:11 AM ---------- Previous post was at 08:07 AM ----------
PaoloMix09 said:
Wow I've been doing that all my life. Is there anyway for the phone to stop charging when it reaches 100? I just like to go to sleep and wake up to full battery ready for the day.
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I'm really not sure. I think the best idea is just to do a charge in the evening before bed, the battery has such a large capacity, and the Snapdragon 801 is excellent at just sipping away at the juice, that you'll reach the end of the next day with no problems.
Transmitted via Bacon
timmaaa said:
Don't let the device sit at 100% on the charger (no charging overnight).
I'm really not sure. I think the best idea is just to do a charge in the evening before bed, the battery has such a large capacity, and the Snapdragon 801 is excellent at just sipping away at the juice, that you'll reach the end of the next day with no problems.
Transmitted via Bacon
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Thanks for the tips, looks like I'll be charging my phone while doing homework at nights. :good:
PaoloMix09 said:
Thanks for the tips, looks like I'll be charging my phone while doing homework at nights. :good:
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The phone charges so quickly too, so it's all done within 90 mins.
Transmitted via Bacon
timmaaa said:
Don't let the device sit at 100% on the charger (no charging overnight).
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Click to collapse
How serious is this?
If I'm doing a lot of work over ADB, or using the USB to transfer a lot of data, should I unplug once the phone hits full charge?
cheshyre said:
How serious is this?
If I'm doing a lot of work over ADB, or using the USB to transfer a lot of data, should I unplug once the phone hits full charge?
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Click to collapse
The less time the device sits at 100%, the better. That doesn't mean you can never have it at 100%, just avoid it.
Transmitted via Bacon
Is bad for battery life if I charged my phone every night no matter the percentage of battery left?. For example today is 62%.
It's best not to charge your phone overnight because it charges so quickly that it can sit at 100% for several hours before you take it off the charger in the morning. The longer a lithium battery spends at peak voltage (100%, 4.2v), the faster it degrades, meaning your long term battery life will suffer
It's also not a great idea to let a lithium battery fully discharge too often. There's a kind of a sweet spot between 30% and 80% that, if possible, you want to try to keep your battery within when you can.
So it's best to do smaller top-up charges if you're able to. About once a month you should calibrate the high/low flags though, you can do this by fully charging the phone, then fully discharging it, and then fully charging it again.
There are a couple of really good detailed articles than can explain it far better than I can:
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Transmitted via Bacon
I apologize in advance if it's was already asked
So i'm wondering how it works. Does it use warp charge till it reach 100% or it goes normal like at 50 or 70%?
I noticed it's slow 90 to 100 whereas i see warp charge logo
I'm on havoc so idk if it's the same, but havoc shows the output, from what I can see its between 5-6amps until 50% and slowly tapers down from there to 1 amp between 90-100%
*Warp
Sent from my POCOPHONE F1 using Tapatalk
CodeBreaker13 said:
I apologize in advance if it's was already asked
So i'm wondering how it works. Does it use warp charge till it reach 100% or it goes normal like at 50 or 70%?
I noticed it's slow 90 to 100 whereas i see warp charge logo
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Click to collapse
Never charge to 100%, it shortens the battery lifespan a lot. It's best to use it on 20-80 charge range.
After 80% the charging speed slows down like any other phone.
Sent from my POCOPHONE F1 using Tapatalk
The about 20/80 has also worked out well for me on all my devices...
Hank87 said:
Never charge to 100%, it shortens the battery lifespan a lot. It's best to use it on 20-80 charge range.
After 80% the charging speed slows down like any other phone.
Sent from my POCOPHONE F1 using Tapatalk
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This is a fallacy. I charge my phone to 100% everytime and after a years time my battery still has 93-96% capacity. The damage is done if you let it discharge below 10 or 15%. Lithium ion batteries looked to be charged more frequently and when the battery is above 75%. The higher the battery percentage the more charge cycles it will have.
Thanks for the lifespan tip. Didn't know about it
Eric214 said:
This is a fallacy. I charge my phone to 100% everytime and after a years time my battery still has 93-96% capacity. The damage is done if you let it discharge below 10 or 15%. Lithium ion batteries looked to be charged more frequently and when the battery is above 75%. The higher the battery percentage the more charge cycles it will have.
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I didn't understand the last part of your post, if you charge till 80% you'll use very little charge cycle. The most of the battery wear is done on the last 20% charging. Even if you store a li-ion battery at 100% it get damaged very quickly.
They like to be charged often and stay on 40-50% average charge level. If you do that the battery is going to last 3+ years.
If you charge overnight to 100% and top up every time you'll need to replace the battery in less than 1 year.
Sent from my POCOPHONE F1 using Tapatalk
Hank87 said:
I didn't understand the last part of your post, if you charge till 80% you'll use very little charge cycle. The most of the battery wear is done on the last 20% charging. Even if you store a li-ion battery at 100% it get damaged very quickly.
They like to be charged often and stay on 40-50% average charge level. If you do that the battery is going to last 3+ years.
If you charge overnight to 100% and top up every time you'll need to replace the battery in less than 1 year.
Sent from my POCOPHONE F1 using Tapatalk
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This is not the case. Charging the phone more then 20 or 25% or more results in more charge cycles. Look up BatteryUniversity.com and it will explain it to you. The damage above 80% is done if the charging per doesn't reduce and you charge to quickly from 80-100%. This is why the battery reduces charging speed after 80% down to a trickle charger from 95% to 100%. This is built into the charging tech so there is no battery damage charging your phone to 100%.
I charge my phone to 100% everyday and something twice in a day and never have battery issues or reduced battery capacity. My phone lasts as well after 1 year as from the day it's purchased.
Eric214 said:
This is not the case. Charging the phone more then 20 or 25% or more results in more charge cycles. Look up BatteryUniversity.com and it will explain it to you. The damage above 80% is done if the charging per doesn't reduce and you charge to quickly from 80-100%. This is why the battery reduces charging speed after 80% down to a trickle charger from 95% to 100%. This is built into the charging tech so there is no battery damage charging your phone to 100%.
I charge my phone to 100% everyday and something twice in a day and never have battery issues or reduced battery capacity. My phone lasts as well after 1 year as from the day it's purchased.
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https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Read carefully, it says exactly what I'm telling you.
I'll attach a screenshot of the website that you suggested, it's shows what I'm saying that if you charge to 80% instead of 100% you get three times more battery cycles of lifespan (850-1500 vs 350-500).
Also the second screenshot shows that if the battery stays at 100% it degrades much faster (only 80% capacity after one year vs 96% capacity if stored at 40%).
https://photos.app.goo.gl/uPH5UXBTbHiEgjRQ6
https://photos.app.goo.gl/FLsT3gTEHuq6KwU77
Sent from my POCOPHONE F1 using Tapatalk
And if you charge routinely from 75% or higher, you can achieve up to 1200 cycles for lithium ion batteries. I'll do my way as I don't lose battery capacity after a years time. This is info from battery University. Been doing this for years (since the note 3). Again I'll say, it's not charging to 100% it's if your charge to quickly from 80% to 100% it's what's bad for the battery.
---------- Post added at 08:23 PM ---------- Previous post was at 08:02 PM ----------
If you read what you posted it's the temperature During the charging that reduces the charge cycles. There is no heat in a OnePlus phone with Warp or Dash charging. Depth of discharge also increases cycles if you charge when the battery had more charge. For example... Charging at 25% or less gives 250-300 charge cycles, 25-50% gives 350-500 cycles, 50-75% 600-900 cycles and above 75% up to 1200 cycles. I'll continue to follow that by battery University and continue to have a battery that doesn't lose capacity
Eric214 said:
And if you charge routinely from 75% or higher, you can achieve up to 1200 cycles for lithium ion batteries. I'll do my way as I don't lose battery capacity after a years time. This is info from battery University. Been doing this for years (since the note 3). Again I'll say, it's not charging to 100% it's if your charge to quickly from 80% to 100% it's what's bad for the battery.
---------- Post added at 08:23 PM ---------- Previous post was at 08:02 PM ----------
If you read what you posted it's the temperature During the charging that reduces the charge cycles. There is no heat in a OnePlus phone with Warp or Dash charging. Depth of discharge also increases cycles if you charge when the battery had more charge. For example... Charging at 25% or less gives 250-300 charge cycles, 25-50% gives 350-500 cycles, 50-75% 600-900 cycles and above 75% up to 1200 cycles. I'll continue to follow that by battery University and continue to have a battery that doesn't lose capacity
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I'm not going to convince you but I don't like the pread of disinformation.
If you read the graph in the picture it show that what damages the battery is both from high temperature and high charge level. Just look at 25 degree row:
40% charge - >96% capacity after 1 year
100% charge - >80% capacity after 1 year
Things are even worse at 40 degree: 85% capacity vs 65% so 20% extra battery capacity lost.
Remember that when the battery capacity is at 80% means the battery is gone because it cannot cope with the ampere under load and the phone will shut down. This after 1 year without taking consideration of the extra damage while charging to 100%.
Now I'll copy and paste that part from the website:
Most Li-ions charge to 4.20V/cell, and every reduction in peak charge voltage of 0.10V/cell is said to double the cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.0V/cell should deliver 1,200–2,000 and 3.90V/cell should provide 2,400–4,000 cycles.
4.20v is 100% charge
4v is 70-75% charge
Be careful that's tge voltage of the cell, not the charging voltage.
I agree with you that slow charging makes less damage but still charging from 75% to 100% makes hugely more damage to the battery than charging from 20% to 80%.
Sent from my POCOPHONE F1 using Tapatalk
Hank87 said:
I'm not going to convince you but I don't like the pread of disinformation.
If you read the graph in the picture it show that what damages the battery is both from high temperature and high charge level. Just look at 25 degree row:
40% charge - >96% capacity after 1 year
100% charge - >80% capacity after 1 year
Things are even worse at 40 degree: 85% capacity vs 65% so 20% extra battery capacity lost.
Remember that when the battery capacity is at 80% means the battery is gone because it cannot cope with the ampere under load and the phone will shut down. This after 1 year without taking consideration of the extra damage while charging to 100%.
Now I'll copy and paste that part from the website:
Most Li-ions charge to 4.20V/cell, and every reduction in peak charge voltage of 0.10V/cell is said to double the cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.0V/cell should deliver 1,200–2,000 and 3.90V/cell should provide 2,400–4,000 cycles.
4.20v is 100% charge
4v is 70-75% charge
Be careful that's tge voltage of the cell, not the charging voltage.
I agree with you that slow charging makes less damage but still charging from 75% to 100% makes hugely more damage to the battery than charging from 20% to 80%.
Sent from my POCOPHONE F1 using Tapatalk
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Yeah I can say the same about disinformation which is what I said to you to begin with. My op6 which I bought and had since launch still gives me 9-11 hours is screen on time today like it did on day one. That phone like all the rest of my phone is charged to 100% every day, normally from about 70% or higher remaining battery when put on charge. Using a few different apps my battery capacity still shoes 95% capacity.
Again, charging to 100% and damaging your battery is a fallacy. Charging to 80% is fine but your depth of discharge is greater putting more stress on a lithium ion battery.
Eric214 said:
Yeah I can say the same about disinformation which is what I said to you to begin with. My op6 which I bought and had since launch still gives me 9-11 hours is screen on time today like it did on day one. That phone like all the rest of my phone is charged to 100% every day, normally from about 70% or higher remaining battery when put on charge. Using a few different apps my battery capacity still shoes 95% capacity.
Again, charging to 100% and damaging your battery is a fallacy. Charging to 80% is fine but your depth of discharge is greater putting more stress on a lithium ion battery.
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That's is from lab test made from scientist, so I trust it.
Also no one tells you that you need to wait 20% to charge, you can do 40 to 60 or 30 to 50 but i can assure you that I've got a phone a xiaomi mi 5s 3 years old same battery charging 20% to 80% and is still usable, I'm using it as a second phone.
My previous phone was a galaxy note, I was charging it overnight and charging it to 100% often through the day, i replaced the battery three times in two years.
Thats my experience.
Sent from my POCOPHONE F1 using Tapatalk
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
johnnyman25 said:
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
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Click to collapse
The best charging pattern is to always keep the battery near 50% and do frequent charges through the day.
Don't charge overnight, leave the battery at around 50% when you go to sleep.
At the morning, when you wake up plug in the warp charger so you can charge to 80% before going to work.
Charge over 80% only in special circumstances when you need long battery life.
Try to never go below 20%.
Sent from my POCOPHONE F1 using Tapatalk
johnnyman25 said:
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
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Click to collapse
I recommend you to plug your phone 1h before sleep and charge it fully or do it in the morning. You may increase your battery life with all that slower charging, up to 80% etc but really? Is it worth to resign from that cool Warp charging feature just for extending your battery lifespan and you won't even know how much it will extend? And you can even exchange the battery at authorised center for about 20 bucks.
I thought the myth about leaving the phone charging overnight breaks stuff was explained away already. There's stuff that runs in the background that improves the usability of the phone and decreases battery drain.
Read this monster post for full info. Not so much looking after the battery but system optimization. Warning. It's a big read. I've been leaving my phone charging overnight for years. I still have a OP5 that's being used daily and still gets fairly impressive SOT. Other thing is, "we" tend to change our phones quite often. SO I just don't worry about it too much and use the phone the way I want to use it.
https://forums.oneplus.com/threads/charging-battery-performance-caches-and-battery-calibration-myths-busted.993896/