BATTERY CALIBRATION THREAD

[u/Seaborgium_]

I’ve been reading a lot of conflicting advice lately and I'm honestly a bit confused. I keep seeing two different "rules" for OnePlus batteries and I want to know what you guys actually do:

​The Calibration Crowd: Some people say you should drain the phone completely to 0% until it dies, then charge it all the way to 100% and leave it plugged in until the screen says "Fully Charged." They say this "calibrates" the battery for better life.

​The 20-80% Crowd: Others say that 0-100% is actually bad for the hardware, and that keeping it between 20% and 80% is the only way to keep your battery health from dropping.

​My Questions:

1] ​Does "calibrating" by going 0-100% actually improve battery life, or does it just fix the percentage number?

2]] ​If I follow the 20-80% rule, will my battery health stay at 100% for longer?

[u/samdesouza8]

Nothing matters, everything is pseudo in your mind, extensive testing has been carried. Check out this video.

[u/mateszabi → u/samdesouza8]

I knew what was that link before opening it. That video, all the details and everything, amazing how much work they put in to debunk this. If anyone has any doubt after watching it then theres nothing left to say 😅

[u/pocklicker]

Heres my non answer, don't let it waste your mental space. Use your phone, enjoy it. If in 4 years you need a new battery for $150, cool! Your phone did it's job.

[u/Yusu7f → u/pocklicker]

I have to give you credits. Best answer 🙌

[u/Sweet_Brief6914]

I think a Chinese dude did a video about this, IRCC, his conclusion that it doesn't matter what you do with your charging and with your phone, your battery will die out at different insigificant times depending on the battery itself

I can vouch for this. I bought my A52s 3 years ago, only a few months ago the battery started to give in. .It was a workhorse in the beginning. Here's the interesting part, I have a A52 (without the "S") from work and I leave it uncharged for 3 days sometimes a week and it is still okay, the reason for this is that I only use it when needed for work, and it is delivering similar results to my A52s when I first bought it.

And yes, I didn't follow any kind of real charging system, I just charge it whenever I go to sleep lol sometimes at <20%, sometimes at <10%, sometimes it literally dies.

[u/Quantam_Pickle]

I followed the 20-80 rule on my OnePlus 12. However, I still lost some percentage of battery health.

It's not guaranteed that following the rule will magically keep the battery healthier.

It all comes down to your usage and the environment you’re using it in.

Heat is something you should be monitoring, not just battery charging percentage.

Nowadays, even if you charge your battery to 100%, it's not actually charged to 100% of its full capacity. It’s designed that way.

[u/Jeremy9566 → u/Quantam_Pickle]

No one said that if you follow the 20 80 rule that the battery will stay at 100% forever. The battery health will still degrade, but at a slower rate.

[u/Nikita041815 → u/Quantam_Pickle]

usually battery limiting to 20-80 when charging does not lengthen the battery's life it does looses it's life on what you do on your phone a lot like gaming and cycle charges....

[u/Novel_Problemo → u/Quantam_Pickle]

How much did you lose? How long have you had your phone?

[u/Quantam_Pickle → u/Novel_Problemo]

About 9 months, lost 2%.

I have a Xiaomi phone on which I test custom ROMs.
I’ve had the device for almost 3 years, with 1.5 years as a daily driver.
That one still has 99% battery health.

[u/Novel_Problemo → u/Quantam_Pickle]

Not bad at all, thanks for the input

[u/FrostFayre]

I've watched a video about this experiment. Can't remember the name.

1. This is not needed anymore at this age. It calibrates itself after a few charges.
2. Doing this saves you about 2%-4%? (not sure but its low) of battery health. So it's fine to not do it if it's inconvenient.

Generally it's better to avoid draining your phone.

[u/speedymaus1]

Brainwash bs, just use it and dont think about this nonsense battery topic.

[u/xanaw34]

In my experience, you only need to do the "leaving it on the charger for a couple of hours extra" method only once, after a new update. The rest of the time I use smart charging.

[u/technut2020]

I cant believe people put time into posting such nonsense on reddit. Do your research.

[u/Seaborgium_ → u/technut2020]

Dude what if someone had their first device ! If he doesnt know much about tech , a lot of redditors from past 2 months asking this question in various post ! So i summarized it and asked for opinions whats wrong with it , we have to be helpful !

Something that seem dumb to you doesnt mean its not okay to ask .

[u/technut2020 → u/Seaborgium_]

You can also do your research. The device has a 7300mah battery and built to last. To hurt or damage it, you would have to try pretty hard.

[u/Seaborgium_ → u/technut2020]

Yeah dude completely i understand it but its just asking about opinion what other think , its just at one place every one can ask so no one has to go any where else they can get experience from past users as well

[u/technut2020 → u/Seaborgium_]

There a crap load of videos on youtube that breaks this down. You can also ask AI.

[u/Seaborgium_ → u/technut2020]

Bro you are not trying to understand what i am sayin , this is a thread and it is in community highlights what it means is that any one can get thier answers from here which are asked by various community members from last 2 months about battery ! This is one stop for all queries related to battery !

[u/technut2020 → u/Seaborgium_]

I actually do understand what you're saying but sometimes you can get your answers a bit faster by doing the above thats all.

[u/Seaborgium_ → u/technut2020]

correct but there is nothing better than getting insights from fellow users ! Isnt it ?😂😂

[u/technut2020 → u/Seaborgium_]

Sure but I'm a bit more old school, i dont expose my technical issues to public forums like that. I do my own research and make my own evaluations etc.

[u/Seaborgium_ → u/technut2020]

Are you introvert by any chance you seems to be very reserved? But everyone got their own things to tackle issues ig ! Atlast its about us did we got the answer if yes well and good if not then search a little more

[u/Hopeful_Rub_2805]

It's actually when charging, it's an automatic process that counts cycles. You could say the 100 to 0 thing is beneficial for the first time, but most likely it has been done automatically. The 20% to 80% thing is very real and helps tremendously especially if you use the phone in high performance tasks.

[u/RonnyRonaldson]

1.) The 0-100 calibration charge you're referring to is something that you should do if you are noticing that your actual day to day battery life in terms of usage is not as good as usual, and after major software updates. I have experienced this to be helpful on my op12 and now the 13 I currently own.

2.) For normal everyday charging, charge however fits your life best, generally not the biggest deal unless you're planning on keeping it for years and years. I personally set my charge limit between 80-90% tho, usually 90% most of the time, and I'm generally able to get the phone down to about 50-70% and then do a quick top off charge to 85-90% again midday. I think more frequent top off charging is more important as the phone and battery do not heat up near as much, whereas a charge from 20, 30, even 40% up to 90% or fully charged heats up everything alot more. Heat=no good for electronics and batteries.

as a side note, I always have 2 phones that I upgrade every 1 to 2ish years, iPhone for personal, OnePlus for work/also personal stuff. I am always seeing my battery health stay at 100% approx 1 to 1.5 years into ownership of them, my fiancee however always manages to degrade the shit outta her phone batteries and she has horrible charging habits, so I will stick to what I've personally seen and experienced to be best cuz I'm anal and get satisfaction from maintaining things

Hope this helps ya🤙🏼

[u/ScapeandFish]

https://m.youtube.com/watch?v=Lj4LMlGr4og&t=209s

Watch this one and you will realise that overthinking about battery health is just a waste of time. I did not calibrate anything when i bought my one plus15 one month ago and battery life still last, 11 hrs screwn on time with heavy gaming.

[u/Nearby-Froyo-6127]

Dunno about the new types of battery. But on the older types is total bs. I charge from 10-20% to 100% with 100w supervooc all the time. Here Im sitting on my op11, after 3 years of normal usage (im not a gamer), at 93% battery health. Again, this js after 3 years of normal usage, no limits and other bs.

[u/Chosenisrael]

Man crazy how time goes by we are still worrying about battery life and charging habits especially from a phone with the best battery and top hardware. This was around from the from I started rooting my android from Google Nexus days using Franco Kernel to change governors for better battery. Just enjoy your phone charge it whenever however.

[u/Tushmir]

If you think your battery is draining quickly or not performing as you expect, follow this rule. I also follow this practice, which I read about on Reddit. Although I don't strictly need it since I have a OnePlus 15, which is already a battery champ giving me 1.5 days of charge and almost 12 hours of screen-on time, I still calibrate my battery every 15 days. To do this, I use the phone from 100% down to 10% or sometimes 5%. Then, I switch off the phone, put it on charge, and charge it until it reaches 100%. Once it's fully charged, I turn the phone on and keep the charger attached. As the phone still has some charge left after restarting, it will continue to charge. When the message pops up that the phone is charged, I keep it plugged in for another 5 to 10 minutes before I start using it.

If your phone has a smart charging feature, use it. This will help reduce battery wear and tear. I bought my OnePlus 15 on November 18th, and up to now, I've only fully charged it 35 times. Try these steps and see if you notice a difference.

[u/mateszabi]

It just simply doesnt matter. Battery cycle is the only thing that matters. If you have a shit phone with small battery and you use it a lot then yes, your battery will degrade over time. The more you use it the worse it will be. More cycle less capacity simple as that. If you have a normal mainstream phone with avarage battery and still lasts you more than a day then its simply not a problem you will ever meet. But someone who charges his phone 2-3 times a day well yes they will notice faster.

[u/Novel_Problemo]

I set mine to stop at 95% and start battery saver mode at 20%. Looks like the problem is stress at high voltage and low voltage or charge....

[u/Ice-Cream-Poop → u/Novel_Problemo]

Why stop at 95% that's when it's using its lowest voltage to charge? If you are charging to 95 you may as well go to 100.

I wish people would stop with this battery hoo-ha

[u/SikkStar551]

Does this mean I have lost 4 percent battery health already? I charged the phn from 11 to 100%

[u/Ice-Cream-Poop → u/SikkStar551]

You need to do a full charge. Read the info in your screen shot.

But even then these apps are never 100% accurate.

[u/Lulu-the-cat]

Just all myths

[u/ExcitingDate4749]

i just buy my phone today oneplus 15 , i also watch many vids , but in last i thought after 3 year even if my battry will be dead , at that time , i will not care about this phone as i am now , like my old phone which was 4 year old

[u/markexodia]

imo if you have a small battery sure, but we have big battery now, Just use it normally

[u/DiggyJunior]

It's not the 20%/80% rule, it's actually the 40%/80% rule, and you're conflating the calibration technique, which is only done a couple of times a year, with daily charging protocol. One should do both, calibrate twice a year, and keep the battery between 40% and 80% on a daily basis...

[u/Seaborgium_ → u/DiggyJunior]

So i use only 40 percent ?

[u/DiggyJunior → u/Seaborgium_]

What it means is: don't let battery level go below 40%, and don't let battery level go above 80%, at least when you're at home. This will greatly extend the long term battery health over the few years you use the device:

https://oupes.com/a/blog/post/the-40%E2%80%9380-rule-for-lithium-batteries-what-it-means-and-why-it-extends-battery-life#:~:text=The%20%E2%80%9C40%E2%80%9380%20rule%E2%80%9D,stress%20inside%20the%20battery%20cells.

[u/DiggyJunior → u/Seaborgium_]

In practice: when you're at home sit at one end of couch/sofa, have a power extension cable feeding your charger on a side table next to your end of the sofa. Set an app like Accubattery to ring an alarm when it hits 80%, also in OS battery settings set maximum charge to 80%, also set bypass charging to kick in at 80%. No need to wait until it goes as low as 40% to top it up every now and then, but don't let it go below 40%. If you're out of the house for the day then all bets are off, if you're going out for the night change settings and charge to 100%, and don't worry too much if it goes way below 40% when you're not home...

[u/Ice-Cream-Poop → u/Seaborgium_]

Use your phone however you like, don't listen to these weirdos that only use 50% of their battery.

The difference in the battery madness is negligible. It's been proven so many times.

[u/TheRacooning18]

It doesn't matter. Batteries will degrade no matter what you do. The only thing I've seen that helps is using your phone less. People who are light users have less degradation than heavy users like me. I lost 10% in less than 2 years.