cancel
Showing results for 
Search instead for 
Did you mean: 

Prolonging the battery life

vedhprakashy
Star II
This my first new phone I've ever gotten and I want to do anything I can to prolong the battery on-screen time and overall lifespan of it. I've already done most of my research on this topic myself and have applied what I learned, such as partial charging, avoiding hot places, planning to stop using fast/hyper-charging and a few more. I want to know what are you guys' take on this topic. Any tips are appreciated, it'll help both me and passing readers. Thank you in advance! ?
25 REPLIES 25

jetjosh92
Rising Star II
julienvd93

Calling people names is bullying. There is no need for that and should not be allowed on this forum.

You have different opinion and that is okay with me. But calling people names is childish and unnecessary.

The 8 year study you are referring to is being maintained and gets regular updates. Last update of that study was mid 2019.

Here is another recent overview: https://batteryuniversity.com/index.php/learn/article/do_and_dont_battery_table

It was lastupdated 2018-04-10

The difference between your research and my research is that yours is based on YouTube videos and mine on research papers from trust worthy sources.

Please stop putting words in my mouth. I never said that he should keep his phone charged at 80% nor that he should carry a powerbank with him or even that it is not okay to charge a phone up to 100%. I'm done with you and this argument.


View post
Dude no one is bullying I made my own recommendation based on a average user perspective which I am not going to repeat again. But you had to come at me like every battery nerd does with that same study from that same website.
The updated recommendation is kinda almost the same as what I had been saying..random partial charges and keep the heat down. I even said you can follow the 20% to 80% if that works it is just 10% difference if the guy needs a little more juice so why are you coming at me for ?
One more thing the study wasn't done on smart phones particularly, but on lithium based batteries in general. The video I showed you at least was done on a smart phone over a period of a few years. So does the 30% to 80% Soc really have a really significant difference on a phone battery ? no ? for a electric vehicle yes it which is also mentioned in the video since it is huge battery compared to a smart phone.
Which brings me back to my point. is it worth managing a smart phone battery that much ? no ? an iphone still has about 86% battery capacity after a few years and that to me is pretty good. So that there shows you that it does not really matter. Which I still think even after giving this explanation, you are still not getting the point.
Studies done on batteries aren't for a specific device and it is not suit everyone and our every day life. Unless you drive an EV...
so why lose sleep over a smart phone when the manufacturers have already thought about it ?

julienvd93
Rising Star II
You think 86% is decent? 80% for most lithium ion applications is called end of life. Apple will advice you to change the battery at this point.
PZ9AVJ96I256.jpg
Here is a research paper written by professors of Institute of Sensor and Reliability Engineering (ISRE), Harbin University of Science and Technology, Harbin 150080, China
And
Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA
The title of this paper is:
Derating Guidelines for Lithium-Ion Batteries
Published on 26 November 2018
The focus of this article is on lithium-ion batteries that are used in portable consumer electronics devices such as cellphones.

Quote of conclusion of this paper:
"Both temperature and SOC can be derated to reduce the rate of capacity loss for LCO and LFP batteries and extend their calendar life. While temperature in general is a more significant factor compared to SOC for calendar life derating, the criticality and effectiveness of SOC as a derating factor cannot be ignored at high temperature (50 °C or above). Hence, temperature control should be primarily used for derating to extend battery calendar life. Additionally, temperature control may be a more costly exercise compared to controlling the SOC, so if high temperature cannot be avoided during battery storage, then SOC derating must be implemented to extend battery calendar life."
Graphs of corresponding findings:
XWEEBQEPXMVI.png
CO5WVYWAQFZ5.png
Link to full article:
Derating Guidelines for Lithium-Ion BatteriesThis is just one of the many scientific research studies that have been done that show that the SOC has a high impact on battery degredation. Here some more so you can educate yourself:

JES : J. Electrochem. Soc.
You can try and be a bully all you want but I wear my battery nerd badge with great pride.


OPC
Zen Master II
Apple will not only recommend to replace the battery. It will after the software update make your phone unusable. Then it will offer you a "generous" proposal to replace the battery at 50% discount to make you phone usable again. My own experience with iPhone 6s. I moved to Samsung then.

Aryan202
Community Legend I
julienvd93

You think 86% is decent? 80% for most lithium ion applications is called end of life. Apple will advice you to change the battery at this point.

PZ9AVJ96I256.jpg

Here is a research paper written by professors of Institute of Sensor and Reliability Engineering (ISRE), Harbin University of Science and Technology, Harbin 150080, China

And

Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA

The title of this paper is:

Derating Guidelines for Lithium-Ion Batteries

Published on 26 November 2018

The focus of this article is on lithium-ion batteries that are used in portable consumer electronics devices such as cellphones.

Quote of conclusion of this paper:

"Both temperature and SOC can be derated to reduce the rate of capacity loss for LCO and LFP batteries and extend their calendar life. While temperature in general is a more significant factor compared to SOC for calendar life derating, the criticality and effectiveness of SOC as a derating factor cannot be ignored at high temperature (50 °C or above). Hence, temperature control should be primarily used for derating to extend battery calendar life. Additionally, temperature control may be a more costly exercise compared to controlling the SOC, so if high temperature cannot be avoided during battery storage, then SOC derating must be implemented to extend battery calendar life."

Graphs of corresponding findings:

XWEEBQEPXMVI.png

CO5WVYWAQFZ5.png

Link to full article:

https://www.mdpi.com/1996-1073/11/12/3295/htm

This is just one of the many scientific research studies that have been done that show that the SOC has a high impact on battery degredation. Here some more so you can educate yourself:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://vbn.aau.dk/ws/files/226314919/Degradati...

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.mdpi.com/2076-3417/8/10/1825/pdf&ve...

http://m.jes.ecsdl.org/content/163/9/A1872.full

https://www.google.com/url?sa=t&source=web&rct=j&url=https://hal-cea.archives-ouvertes.fr/cea-017912...

You can try and be a bully all you want but I wear my battery nerd badge with great pride.


View post
Lol why even bother about the battery that much
You guys have fricking 6000mah ?
Even if it'll deteriorate after the 2 yr mark it'll still be at around 5200-5400mah capacity imo
No need to worry
Btw scheduled charging is great for overnight charging
I'm on a phone with 3300mah battery (Zenfone 5z) it has an LCD and it's around 1.2+yrs old now and my charging patterns were"okayish" i guess i don't see a huge decline in my sot per charge from when i bought the phone and now ( a bit it's there but it's manageable imo)
Just use scheduled charging if you charge overnight frequently and you'll be just fine.
OEMs do their fair share of research before incorporating stuff no need to worry this much 😄

Aryan202
Community Legend I
Plus Apple really has "small mah" batteries in their phones
Yeah great optimisation but they deteriorate in the long run as the mah isn't anything great you'll feel the noticeable decrease in your sot per charge.
Plus maybe it's their marketing thing
They slowed down older phones !
What if the message is just to get people to buy new phones (unlikely i know but still the possibility of it is kinda there)
(This was in reference to the iPhone screenshot you attached with your comment)