[user_7832]

Correct me if I’m wrong but limiting my charging to 80% (and minimum to say 20%) can increase the charge cycles of a battery by about 5x. This exists on laptops (Thinkpads and Franeworks at least), phones should also offer it.

[kevingadd]

They do, at least on Samsung phones and tablets. It's in settings.

[acdha]

They do - Apple calls that “optimized charging” on iOS and macOS:

https://support.apple.com/en-us/108055

[gorbypark]

I would love if this was "fine-tunable" on iOS. On macOS there are various ways to cap the maximum charge percentage. On iOS (and macOS by default) it tries to learn your charging habits and do various things based on that, but it never actually caps you to 80%. For example, it knows I plug my phone in over night, so it charges to 80%, pauses, then does the remaining 20% right before I wake up.

[dizhn]

This exists on Samsung. I've used it on my S10 Lite since day one and I am not sure if it's directly related but my battery is fine approaching 4 years now. All my previous phones had issues with the batter around the 2 years mark. (It might just be improved battery tech too)