howtosimply.com/guides/how-to-limit-charging-to-80-on-a-samsung-galaxy-phone/ · Checked October 2026 · Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

In this guide

Open Battery
Open Battery protection
Switch Battery protection on
Choose Basic or Maximum
Set the limit
Check Sleep time protection
If you do not see this option
If this does not work
Good to know
Sources

Quick answer

Open Settings, Battery, Battery protection and switch it on. Choose Maximum and drag the slider to the level where charging should stop, for example 80%. Basic instead stops at 100% and only starts charging again when the battery drops to 95%.

5 of 6 steps with real screenshots · 3 official sources below

Device: Android
Shown on: Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16
App: Settings
Path: Settings › Battery › Battery protection
Real screenshots: 5 of 6 steps
Our phone: Shown on Galaxy A57, One UI 8.5
Checked: October 2026
Sources: 3 official, linked below

Step by step

Open Battery
Open Settings and tap Battery.
Done
Open Battery protection
Scroll down the Battery page and tap Battery protection. It sits below Power saving and Background usage limits.
Done
Switch Battery protection on
Tap the switch at the top so it reads On. The options below become available.
Done
Choose Basic or Maximum
Basic: when the battery reaches 100%, charging stops until the level drops to 95%, then starts again. Maximum: charging stops at a level you set. Pick Maximum for a real limit.
Done
Set the limit
With Maximum selected, drag the slider to the level you want. Samsung names 80%, 85% and 90% as levels that help reduce battery wear.
Done
Check Sleep time protection
Further down, Sleep time protection stops charging at 80% while you sleep and finishes to 100% just before you wake up. Leave it on if you need a full battery in the morning; switch it off for a strict limit overnight. Samsung says it learns your sleep times over about 2 weeks.
Done

If you do not see this option

There is no Maximum or Basic choice Samsung says the three options (Basic, Adaptive and Maximum) came with One UI 6.1. On older software the only option is a fixed limit of 85%. Source: Galaxy Battery protection feature in One UI 6.1
You also see Adaptive Samsung says Adaptive uses Maximum while you sleep and switches to Basic before you wake, based on your usage. It may not work well with irregular sleep. Source: Galaxy Battery protection feature in One UI 6.1
You cannot pick the limit Samsung says choosing the Maximum limit (80, 85, 90 or 95%) came with One UI 7.0. Older software only offers a fixed limit. Source: Protect your battery for longer and safer use (Battery protection)
You want a quick switch for it Samsung says you can add Battery protection to the quick panel: swipe down from the top right, tap the pencil, Add a control, and Battery protection under System apps. Source: Protect your battery for longer and safer use (Battery protection)

If this does not work

Basic still lets it reach 100% Samsung says Basic stops at 100% and starts again at 95%. Only Maximum stops lower; Samsung names 80%, 85% and 90% as levels that reduce wear. Sources: Galaxy Battery protection feature in One UI 6.1, Set a maximum charge level on your Samsung Galaxy
It charged to 100% overnight anyway Samsung says Sleep time protection charges to 100% just before you wake up. For a strict limit every night, choose Maximum. Source: Protect your battery for longer and safer use (Battery protection)
It went back to Basic Samsung says Sleep time protection can switch to Basic if you turn off Customisation Service consent, or in multi-user mode. Source: Protect your battery for longer and safer use (Battery protection)

About this guide

Lithium-ion batteries wear faster when they sit at 100% for hours, for example overnight or on a desk charger all day. One UI can stop charging early so the battery keeps more of its capacity over the years.