Samsung SM-G930FD User Manual page 13

Basics
Wireless charging
The device has a built-in wireless charging coil. You can charge the battery using a wireless
charger (sold separately).
Fast wireless charging
You can charge your device faster using the fast wireless charging feature. To use this feature,
you must use a charger and components that support the fast wireless charging feature.
A fan inside the charger may produce noise during fast wireless charging. To reduce
the fan noise, you must deactivate the fast wireless charging feature. The on/off
option will be added in your device's settings menu when you first place it on the
charger. On the Home screen, tap Apps → Settings → Battery, and then tap the Fast
wireless charging switch to deactivate it. Deactivating this feature will reduce noise,
but may result in slower charging times.
Charging the battery
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Place the centre of the device's back on the centre of the wireless charger.
You can check the remaining charging time on the screen. The actual remaining time
may vary depending on the charging conditions.
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