Protect your battery for longer and safer use
The Battery protection feature helps manage battery life by adjusting the charging method and charging limit. Here's how to set it up and how each mode works.
The Battery protection feature helps maintain battery life for longer by managing the battery charge status.
When you use this feature, you can adjust the charging method and charging limit to reduce strain on the battery. Understanding what may happen or appear when Battery protection is active can help you use your device with more confidence.
※ Menu names or operating methods may vary depending on the device and software version.
How to set Battery protection
Set Battery protection
01. In 'Settings', select 'Battery'.
02. Turn on 'Battery protection'.
Set Battery protection in Device care
01. In 'Settings', select 'Device care'.
02. Select 'Battery'.
03. Turn on 'Battery protection'.
Add Battery protection to the Quick settings panel and turn it on
01. Drag down from the upper right to open the quick settings panel.
02. Tap the 'Edit' icon.
03. Tap 'Add a control' at the bottom.
04. In 'System apps', tap the 'Battery protection' icon.
05. Check that it has been added to the Quick settings panel, and then tap 'Done'.
06. Tap the 'Battery protection' icon to turn on the Battery protection feature.
Mode operation guide
Basic mode
Basic mode helps protect the battery by limiting additional charging after the battery is charged to 100%.
- Charging stops when the battery reaches 100%.
- After that, the device runs directly on charger power without charging the battery further.
- If you use the device or apps run in the background, the battery level may decrease.
- When the battery reaches 95%, charging automatically starts again. (This may vary depending on the device and environment.)
※ Values may vary depending on the device, software version, charger (pad), and usage environment.
※ For a detailed example, refer to Frequently Asked Question Q1.
Maximum mode
Maximum mode manages battery life by charging only up to the charging limit set by the user.
- The battery charges only up to the selected charging limit (80/85/90/95%).
- After reaching the limit, the device runs directly on charger power.
- If power consumption is higher, the battery level may temporarily decrease.
- When the battery decreases by about 2% from the selected charging limit, charging automatically starts again. (This may vary depending on the device, software version, and usage environment.)
※ If you connect the charger when the current battery level is equal to or higher than the selected limit, the current battery level is maintained without additional charging.
Sleep time protection
Sleep time protection adjusts the charging speed based on the user's sleep pattern.
- During sleep time, charging stops at about 80%.
- Charging is adjusted to reach 100% just before you wake up.
- This helps support battery life by preventing the battery from staying at 100% for a long time overnight.
※ If your sleep pattern is irregular, the feature may not work.
※ Learning your sleep pattern generally takes about 2 weeks. (If a pattern was formed on a previous device, it may be applied faster.)
※ Agreement to Customisation Service and related permission settings are required.
※ If you turn off Customisation Service consent and related permissions, or in some environments (for example, multi-user mode), the feature may automatically switch to Basic mode.
Display guide when Battery protection is active
While charging is limited, a 'Battery protection' guidance message may appear in the following locations.
- Status bar (indicator)
- Lock screen
- AOD screen
- Notifications
- Settings → Battery screen
Frequently asked questions
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Question 1. I set it to Basic, but 100% charge is maintained. It looks like Battery protection is not working.- This is normal operation.
- When the battery reaches 100%, power is supplied directly from the charger, not from the battery.
- If charger output is equal to or greater than the power used, battery consumption may be minimal, so the display may stay at 100%.
- If power consumption increases momentarily, or if charger output is low, such as with a wireless or low-output charger, the battery may be consumed and will recharge at 95%.
- After charging reaches 100%, recharging does not occur until the battery reaches 95%. This helps protect the battery by reducing frequent charging. -
Question 2. I set it to Maximum and selected 80%, but the battery stays at 79%. Is this an error?- This is not an error.
- If power consumption is higher, the battery level may temporarily decrease, and charging automatically starts again when it decreases by about 2% from the selected limit.
Example) If 80% is selected, recharging starts at 78%. -
Question 3. Sleep time protection does not turn on.- Check Customisation Service consent and permissions.
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Question 4. Sleep time protection does not work even after time passes.- If your sleep pattern is irregular, Sleep time protection may not work.
- Learning your sleep pattern generally takes about 2 weeks. (If the sleep pattern has already been formed on a previous phone, it may be applied within 3 to 4 days.)
