Wall Charger 1Amp or 1.5

Le_Combattant

Senior Member
Nov 27, 2018
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Meaux
Hello guys,

To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.

Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.

Thank you all anf have good evening.
 

Droid_Nut

Senior Member
Feb 19, 2015
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0
Kingston NY
I am sure it will charge on either one, but how fast who knows? If you are rooted and have Magisk, download the ACC module and you can control your charging that way instead.
 

HueyT

Senior Member
Apr 3, 2014
3,662
1,794
253
New Albany, IN
Hello guys,

To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.

Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.

Thank you all anf have good evening.
Older USB chargers are mostly slow 1A chargers, like the cube Apple chargers
 

suhridkhan

Senior Member
Apr 27, 2013
995
519
93
Colorado
Hello guys,
To offert at my battery the best treatment I'm looking for a lower amperage wall charger for my Pixel 2XL.
Between 1 and 1.5 Amp it will be excellent. I read some interesting suties about battery life and how manage it and fast charge is part of that.
Thank you all anf have good evening.
I am an electrical engineer, and have some knowledge about how Li batteries function.
I have always wondered this, I always see people mentioning that slower charging is better for the longevity of Li-ion batteries. There is always a trade-off here. Slower charging also means the battery takes much longer to charge, and the battery stays hotter for longer period of time, which should affect it's lifetime. Fast charging also does the same thing, but the temperature is much hotter but is exposed for shorter period of time.
Now these is merely a speculation on my part, I don't have any theoretical or experimental evidence to back this up - I think regular 5V 2A charging is a balance between those two scenarios.
Also, I recall that the peak charging current is limited in P2XL, so using the stock charger shouldn't harm that much either.
 

Le_Combattant

Senior Member
Nov 27, 2018
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Meaux
Pixel 2XL is my first smartphone who do not Come hot when it charge so...


But I know that high temperature are not the best things for battery in general.

And about the level of charge ? Some people said they stop at 80% to manage battery
 

von_block

Senior Member
Jul 10, 2013
251
127
0
I am an electrical engineer, and have some knowledge about how Li batteries function.
I have always wondered this, I always see people mentioning that slower charging is better for the longevity of Li-ion batteries. There is always a trade-off here. Slower charging also means the battery takes much longer to charge, and the battery stays hotter for longer period of time, which should affect it's lifetime. Fast charging also does the same thing, but the temperature is much hotter but is exposed for shorter period of time.
Now these is merely a speculation on my part, I don't have any theoretical or experimental evidence to back this up - I think regular 5V 2A charging is a balance between those two scenarios.
Also, I recall that the peak charging current is limited in P2XL, so using the stock charger shouldn't harm that much either.
I use a 5 watts charger and the phone stay completely cold during the charge process.

Also there was a recent 2017 scientific paper that tested what degraded the battery. It's a really interesting read with many tested model.

https://www.researchgate.net/profil...e-model-under-different-charging-stresses.pdf

Number 1 cause is high battery voltage at the end, second one is battery charging speed. Any speed faster than 1c will degrade the battery much faster.

This is why i charge at 5w plus stop charging at 80% (unless i know I'll need 100% that day, where i fully charge, but for my usage 80% is more than enough for the usual day).
 
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Le_Combattant

Senior Member
Nov 27, 2018
150
30
0
Meaux
I use a 5 watts charger and the phone stay completely cold during the charge process.

Also there was a recent 2017 scientific paper that tested what degraded the battery. It's a really interesting read with many tested model.

https://www.researchgate.net/profil...e-model-under-different-charging-stresses.pdf

Number 1 cause is high battery voltage at the end, second one is battery charging speed. Any speed faster than 1c will degrade the battery much faster.

This is why i charge at 5w plus stop charging at 80% (unless i know I'll need 100% that day, where i fully charge, but for my usage 80% is more than enough for the usual day).
I charge my phone every 48h and when it is full I unplug it from wall charger. And I charge it from 20-25% (some time I go lower because of my usage)

It's your famous amazon wall charger?
 

Le_Combattant

Senior Member
Nov 27, 2018
150
30
0
Meaux
I charge my phone every 48h and when it is full I unplug it from wall charger. And I charge it from 20-25% (some time I go lower because of my usage)

It's your famous amazon wall charger?
I download AccuBattery and charge my phone from 25% to 80% max. The app detect directly the stock capacity of my battery (3520mAh) but after my charge, the new capacity estimated is 2982%. Is the first value is reliable or I have to do some other charges?