Battery charge limit 80/20vs battery cycle

Gadgets and Devices Mobile Phones & Tablets
1

I am using s25 for past few months and needless to say battery is low.

80-20 battery charging is idle for the battery longevity but sot is way less than 100-0/90-10 or any other combo , which is said to be harmful. So which is worse charging higher percentage and draining more but resulting in charging phone less times OR using 80/20 and increasing charging cycle.

How much the battery percentage deteriorates in both cases?

And any samsung user or s25 user any suggestions for further knowledge is welcomed.

Thanks

2

On lithium battery, reducing charge length and doing multiple charges a day is better than doing a full higher charge at once.

Battery degrades faster when you charge and discharge on extreme lengths.

On iPhone 15 Plus I do 40-60% and it gives 3 hours of SOT, which is enough for a day. On heavy use days I do multiple charges of 40-60.

This 20% charge only takes 15 minutes.

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3

Also lithium ion feels the least stress when it on 50% charge. It does not like to stay at higher charge state or heavy discharge state for long periods of time.

4

Charge it to 60% max?

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5

Charging cycle for mobiles don’t matter that much compared to laptop batteries. Avoid 0-100 charging frequently.

6

Yes. The alarm buzzes at 60.

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7

80/20 for battery cycle is perfect

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8

If someone charges phone till 95-97 and use till 5% a charge per day , how long will it take to seriously affect the battery?

9

I am still using same battery after 5 years of usage (M30s) once i started keeping battery within 30-75 most of the time. Not much degradation. Previously battery died every 2 years mobile and laptop. Laptop also has no battery issues and i use lenovo’s built in limit of 60%.

10

That’s almost 1 cycle per day, so roughly 600 cycles every 2 years. iPhones retain 80% of original battery health @ 1000 cycles.

Other phones should be the same.

There is no need to worry about this if you can replace battery from official service center, or you going to change your phone every 3-4 years.

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11

I charge my Realme 11 Pro+ 2 times a day as it gets discharged very quickly and I don’t know any tweaks or hacks that can save battery life.

12

Not this phone but on my old Redmi Note 10 Pro and Redmi Note 7 pro I rooted them and set the charging limits to 48-50% and keep them plugged in all day.

13

My Realme 10 pro+ has charging limit setting to 80%. Also don’t charge your phone at night if it’s more than 40%. Also install AccuBattery app, it will show your battery wear based on your charging, like charging from 47% to 80% costs 0.16 cycles in wear and charging from 0 to 80% costs 0.21 cycles in wear.

14

The funny thing is the battery itself has no way to tell you how much charge it has. It can only tell you >> one << parameter which is it’s voltage.

The typical lithium ion battery voltage graph look like this.

image
image503Ă—353 45.4 KB

The battery voltage between 20-80% is near 3.75v.

The battery itself can’t even tell you how much mAH it is.

All the magic is done inside the fuel gauge IC that is in the BMS of the battery, it constantly monitors the total charge in and total discharge out and based on that it estimates the battery capacity.

All battery metrics that we see in phone and in apps are estimates. Very close to real in ideal conditions.

By ideal condition I mean long charges and discharges, the fuel gauge IC demands this once in a while to map the battery stats.

But here is the trouble, if we start apply our own optimizations of charging and discharging like doing 40-60 or 20-80, it throws off the fuel gauge IC little bit overtime. Cause it never finds out the full capacity of the battery.

So once in a while one full 0-100 charge and 100-0 discharge is recommended to keep the stats accurate.

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15

Bro. Battery percentage suggestions are wild.

16

True. I myself do this one every 2 week.

Coz in 2023 I used this same in my then phone what happened was that 20-80 was fine but rest when charged drained very quickly.

And I believe the reason company says this is also in 20-80 it charges fast so their claim of fast charging is post by them in their ad

17

Imo use the freak out of the battery and replace it on the 3rd year instead of brainstorming what to do

I had used the crap out of my 13 pro max at the third year mark it was at 84 percent

I think 3 year is good enough for a battery to last

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18

I have been using s23 for the past 9 months. The battery health is still at 101% according to accubattery with 196 charge cycles over 309 days. I don’t use any of these battery health gimmicks because there is no point in having 80% health from the first day in the hopes that it will still be 80% after 3 years. I don’t care. You are intentionally hamstringing yourself to 80% from day 1. How is it beneficial in any way? I use the basic charging protection where the phone stops charging after reaching 100% battery.

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19

Having sacrificing 20 - 30% of battery capacity, we would get 300% to 400% more cycles life out of battery life.

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20

The only benefit by limiting charge and discharge, is we get more charge cycles out of the battery, you can double the long term battery life, not to be confused with per charge runtime.

The sign of battery going out is that it doesn’t hold charge for long.