Which of these is the best phone charger?

Aslan69

Top right gives the most power output.

matelodave

not true - both of the Samsung units have the same output  5v at 2a  = 10w or 1.67v at 9v = 15w its just expressed slightly differently

ballyblack

I sometimes wonder why phones don't have a setting to stop at 95%

Some Android phones have this setting. Xiaomi & Pixel have charge to 80%

DullGreyGuy

prowla said:

Frozen_up_north said:

Beware of “fast charging”, the recommended way to keep your battery in good condition is not to charge above 80%, not to fast charge, and not to let the charge drop below 20%.

Clearly the industry loves users that have a poor capacity battery after 2 years, who then say they are “due an upgrade”… another thousand pounds down the drain…

I sometimes wonder why phones don't have a setting to stop at 95%, or even calibrate so that 110% is the real maximum but you can only charge to 100%.
I think my Samsung stopped at 97% the other day.

Apple have a charging limit on their mobile devices that you can set anywhere between 80% and 100%. You can similarly set it so it stops at 80% and only charges above 80% to maximum when it believes you will be going to use it... obviously works best for overnight charges if you get up at a regular time. 

Newcad

My current (posting this from it) Samsung A13, a fairly basic model,  has a "Stop charging at 80%" setting, so check your own phones battery settings:

 My new Win11 Lenovo laptop has a similar 80% setting that supposedly prolongs battery life if you mainly use it plugged in.

This is the Samsung setting 

Vitor

The higher end Samsung mobiles have an 'adaptive' battery charging mode which uses AI to protect the battery, eg if you always charge overnight it won't fast charge 

bob2302

prowla said:

Frozen_up_north said:

Beware of “fast charging”, the recommended way to keep your battery in good condition is not to charge above 80%, not to fast charge, and not to let the charge drop below 20%.

Clearly the industry loves users that have a poor capacity battery after 2 years, who then say they are “due an upgrade”… another thousand pounds down the drain…

I sometimes wonder why phones don't have a setting to stop at 95%, or even calibrate so that 110% is the real maximum but you can only charge to 100%.
I think my Samsung stopped at 97% the other day.

Have look at: Settings->Battery & Device Care->Battery->Protect Battery 

outtatune

ballyblack said:

I sometimes wonder why phones don't have a setting to stop at 95%

Some Android phones have this setting. Xiaomi & Pixel have charge to 80%

I can't remember the last time I had a phone that didn't do this.

FrankFalcon

Thanks everybody. Very useful info.