I would imagine most devices have BMS settings to deal with this now.
There’s not much incentive to do that. Battery longevity reduces sales. Keeping the battery at 100% gives better review scores. It’s a lose lose for phone makers to implement that.
All BMSs I’ve come across have this disabled by default sadly, manufacturers seem to target longest device runtime, rather than extended battery longevity
On my FP3 it needs to be enabled in a terminal, while rooted (newer devices have it in the settings).
On my Steam Deck it also needs to be enabled in a terminal, the exact command differs depending on the model of steam deck. An embedded developer or tinkerer will find it very quickly in the kernel sysfs though.
Edit: Apple and Lenovo are the only companies I’m aware of, who have historically cared for the internal batteries in certain models of their laptops. Macbook Pros in particular used to behave differently when they reach 90%, some will stop charging and others will wait a few hours then resume charging to 100% depending on how the machine is used. I assume this is the only reason why my 2012 MBP still is going great on its original battery, running Linux of course.
Lenovo used to let you configure the charge preferences in the BIOS of their ThinkPad line
This was a decade ago though, can’t vouch for whether this applies to the modern stuff too
I have a new laptop that was complaining that I’d had it plugged in too long. Apparently there’s a battery management setting that will have it charge to 80% max. I’ve used laptops exclusively for like 15 years and this is the first one to complain about being plugged in constantly.
My (work) Dell laptop charges from the usb-c dock, which it’s always plugged into because so are my monitors and ethernet etc. As a result, it’s always on charge.
Leaving a battery at 100% over a long time wasn’t recommended but I would imagine most devices have BMS settings to deal with this now.
There’s not much incentive to do that. Battery longevity reduces sales. Keeping the battery at 100% gives better review scores. It’s a lose lose for phone makers to implement that.
All BMSs I’ve come across have this disabled by default sadly, manufacturers seem to target longest device runtime, rather than extended battery longevity
On my FP3 it needs to be enabled in a terminal, while rooted (newer devices have it in the settings).
On my Steam Deck it also needs to be enabled in a terminal, the exact command differs depending on the model of steam deck. An embedded developer or tinkerer will find it very quickly in the kernel sysfs though.
Edit: Apple and Lenovo are the only companies I’m aware of, who have historically cared for the internal batteries in certain models of their laptops. Macbook Pros in particular used to behave differently when they reach 90%, some will stop charging and others will wait a few hours then resume charging to 100% depending on how the machine is used. I assume this is the only reason why my 2012 MBP still is going great on its original battery, running Linux of course.
Lenovo used to let you configure the charge preferences in the BIOS of their ThinkPad line
This was a decade ago though, can’t vouch for whether this applies to the modern stuff too
My lenovo legion laptop lets me limit charging to 60% for maximum battery longevity
I have a new laptop that was complaining that I’d had it plugged in too long. Apparently there’s a battery management setting that will have it charge to 80% max. I’ve used laptops exclusively for like 15 years and this is the first one to complain about being plugged in constantly.
My (work) Dell laptop charges from the usb-c dock, which it’s always plugged into because so are my monitors and ethernet etc. As a result, it’s always on charge.