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.
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:
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.
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:
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.
julienvd93Lol why even bother about the battery that muchYou 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.
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:
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:
http://m.jes.ecsdl.org/content/163/9/A1872.full
You can try and be a bully all you want but I wear my battery nerd badge with great pride.
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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 😄
