Do you have any data for that? What is the battery capacity during the last 100-200% of the cycles compared to a phone which was used normally?
But, you have a lower usable battery capacity from day 1. I donât think it is as beneficial as people think it is. Li batteries are really good nowadays.
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True. Thatâs why no phone company recommends to do all this, it compromises runtime and runtime on phone is very important to people.
Phones are crazy efficient now.
I personally donât need 2 day battery life, willing to trade it for longevity by doing all this tom foolery.
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AccuBattery app says âCharging from 0 to 80%will result in 0.21 cycles in wear.â According to this after 400 cycles of 80% charge, the capacity will be same as with full charge of 100 cycles.
That is not data. That is an assertion to sell their product called âAccubatteryâ.
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BU-808: How to Prolong Lithium-based Batteries - Battery University Table 4 summarizes the capacity as a function of charge levels. (All values are estimated; Energy Cells with higher voltage thresholds may deviate.)
| Charge Level* (V/cell) | Discharge Cycles | Available Stored Energy ** |
|---|---|---|
| [4.30] | [150â250] | [110â115%] |
| 4.25 | 200â350 | 105â110% |
| 4.20 | 300â500 | 100% |
| 4.13 | 400â700 | 90% |
| 4.06 | 600â1,000 | 81% |
| 4.00 | 850â1,500 | 73% |
| 3.92 | 1,200â2,000 | 65% |
| 3.85 | 2,400â4,000 | 60% |
Table 4: Discharge cycles and capacity as a function of charge voltage limit
Unless batteries dramatically improved 5 years ago, there is a drastic improvement in battery usable life for me. It would always fail in 2 years, always - both laptop and mobile. I did keep it plugged in often.
It has not failed and still has good capacity after 5 years ( 3+ on laptop now) after i started not charging to the max. I have not had a single battery fail or become unusable since then on multiple devices.
Not everyone would care for it which is fine. In my case i dont care about single use battery life as i donât use it continuously and its already quite high. I dont even use fast charge, not much use for me as i am not running around. Fast charge also degrades battery faster from what i have heard.
On laptop, there is an option for hardware limit. On mobile, i have an app that pings once it crosses threshold.
Thatâs it, i donât go around obsessively looking at battery. And in return i donât have to bother with replacing the batteries every 1.5-2 years + less waste.
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I think you meant, âUnless batteries dramatically improved in the last 5 yearsâ. In my opinion, they have significantly improved both on my laptops and phones. I donât let my phones and laptops discharge to less than 10%. My macbook pro after 300 cycles in 3 years is at 88% battery health.
I donât think it has anything to do with you limiting your battery to 80%. Letting your battery go to 0% causes the most damage, but charging to 100% is not a big deal especially with things that are normally used. Storage after charging to 100% causes damage, but nothing significant happens if you let your phone charge overnight. I donât have any data, but, my personal anecdotal experience. Even fast charging is significantly better now. I used to see my battery drop faster after using fast charging with my A50s 5 years ago. But, I donât see that happening with my S23 even with Super fast charging (25W). So, both charging and battery have significantly improved, just based on my anecdotal experience.
3 15 pro maxes have the following battery health. The first one followed the 80% charging limit, the other 2 didnât. There is a difference of 4-7% for the first year. The difference becomes smaller in subsequent years. I donât think it is worth it. The same is the conclusion of the author on Macrumors. Why suffer lower battery life when the benefit is negligible?
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Current capacity: 94%. Cycles: 299: Followed 80% restriction
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Current capacity: 87%. Cycles: 329: No charging restriction
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Current capacity: 90%. Cycles: 271: No charging restriction
I think we are extrapolating from our younger days. The batteries, charging and efficiency are much better than 10 years ago.
No i meant 5 years ago, since i bought my phone 5 years back and havent changed battery and its still runs well enough.
But good if things have improved. Dunno
Test above was run at 22C and i did not see long term data, its just 1 year? Indian temps are quite a bit more. But anyway, someone testing this comprehensively would be nice data.
from google âThe iPhone 15 has a battery capacity of 3,349 mAhâ, So yeah 20% might mean more to them vs 5000+ we can easily get these days.
Anyway it depends on use. If it seems like torture, dont do it obviously. Doesnât bother me.
This is based on the current charge cycles that we see.
The real game is in how far the cycles will go while still maintaining enough charge to get through the day.
On phones that do 0-100 and then 100-0, letâs say at 1500 cycles the phone barely gets through the day.
On phones that do 40-60 or 30-70 repeatedly, this state will come at I guess 3000 cycles.
A person doing 0->100 and then 100->0, counts as 1 cycle. Assume phones give 2 days of runtime.
A person doing 20% charge 5 times.
- 40->60, 60->40
- 40->60, 60->40
- 40->60, 60->40
- 40->60, 60->40
- 40->60, 60->40
5 of these charges will count as 1 cycle. The combined runtime that we get from these charges will still be 2 days, same as 0->100, 100->0. But battery wonât get that much stress. I think this is where we get longevity from.
This relationship is not one to one, there must be other factors at play like temperature. But this is the gist.
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Battery health anxiety is real. I used to be conscious sometime ago related to this stuff. Currently, I am following few tips to avoid battery degradation.
Avoiding charge going below 30%. I have automation setup for this.
Heat is the enemy. Avoid charging in your car it will deplete faster than I wrote this.
Avoid Wireless charging with powerbank except when you are in temperature controlled environment.
Using genuine cable/reputed ones.
Specific to yours, there is a negligible depletion. Also, use your device to the fullest and stop worrying about it. Get the battery changed when it gets below 75% health or after 2.5 years or when you see performance drops.
I have a test running here.
iPhone with low power mode ON, 20% charge gives 2.5 - 3 hours of SOT (no gaming), enough for normal person.
I am hoping that the original battery lasts 10 years with excessive optimization. Highly unlikely but we will find out.
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Interesting. I have been using my iPhone 14 plus in a similar way but in an AC controlled environment for charging wirelessly. Bought the phone back in 2022 November. It will be almost 3 years now and I used to play games a lot in the beginning. My Battery health now is 87% and after every 3 months, I calibrate it. Charging between 40-80% in the first 2 years and now full 100% but in optimized charging. I have a medium to light usage of screen time hovering 25-30 hrs each week.
I have read many reddit communities. There were many point of views.
And you charged from 30 to full or 80%.
Main issue with samsung and iphone is slow charging. Thatâs the only thing I miss about chinese brands damn they are fast ,super fast
You only mentioned two combos neither of which is any good.
Instead of 80-20, try 95-20
^This guy always has great no BS suggestions.
You should monitor battery temperature. I use an old app that looks it was made for jelly bean but it works well
Place the widget on your homescreen. Ideally the temperature should not reach 40. It should not cross 37 when using and charging.
How to do that? Disable fast charging.
Heat is bad for the battery. We live in the tropics at least if you are south of the Vindhyas.
I donât know why the battery heats up when fast charging is enabled on my Samsungs.
Some times it does other times not. No pattern. Thatâs why I disabled fast charging. Might have something to do with the powerbank I use. Tried with an Anker but similar result.
All you need to know
In compact phone heat is an issue.
And from this video the idea is to not charge till hundred. Setting limit 95 will heat up the phone way much than 80. He said for convenience. So when I am at home I charge till 80 and when I have to go where battery will drain I charge till 90-95.
A post on reddit mentioned apart from heat cycles matters the most if charged either 30% total or 100% more cycle it is more stress is on battery.
What software does one use to set that charging limit? Also what software to measure Battery drain/capacity?
I am using Samsung Phones for reference. Lot of people around me who charge recklessly. Charge and watch videos play games, charge for 7/8 hours while sleeping, keep the phone connected to car charger and keep it inside the car parked outside and lock it. I really donât get this - talking on A53 when connected to a power bank that too a 20000mah, holding all the setup on the ear.
Some one please mention a good and proper way to do the charging and monitor your battery.
One plus has an option that does this for you. 80% and it does not charge anymore.
With my old samsing, I use Accubattery. It has option to ping an alert on crossing predefined limit. Not to intrusive.
In samsung go to battery you will find option to set limit to 80 85 90 95.
If you leave for work too often use it to fullest benefit of android is phone is that it has cheap accessories. Use it after 2-3 yr get battery changed.