Samsung Galaxy S21 5G User Manual page 10

Getting started
Wireless power sharing
Wirelessly charge your compatible Samsung devices using your phone. Some features
are not available while sharing power.
1. From Settings, tap
sharing.
2. Tap Battery limit and choose a percentage. Once the device you are charging has
reached this level of charge, wireless power sharing automatically turns off.
3. Tap to turn on the charging feature.
4. With the phone face down, place the compatible device on the back of the phone
to charge. A notification sound or vibration occurs when charging begins.
NOTE Wireless power sharing works with most Qi-Certified devices. Requires
minimum 30% battery to share. Speed and power efficiency of charge varies by
device. May not work with some accessories, covers, or other manufacturer's
devices. If you have trouble connecting or charging is slow, remove any cover
from each device.
Devices and software are constantly evolving — the illustrations you see here are for reference only.
Battery and device care > Battery > Wireless power
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