Basics16• While charging, the device and the charger may heat up. This is normal and should notaffect the device’s lifespan or performance. If the battery gets hotter than usual, thecharger may stop charging.• If you charge the device while the multipurpose jack is wet, the device may be damaged.Thoroughly dry the multipurpose jack before charging the device.• If the device is not charging properly, take the device and the charger to a SamsungService Center.Fast chargingThe device has a built-in fast charging feature. You can charge the battery more quickly whilethe device or its screen is turned off.About Fast charging• Fast charging uses battery charging technology that charges the battery faster byincreasing the charging power. The device supports Samsung’s Adaptive fast chargingfeature and Qualcomm Quick Charge 2.0.• To use Fast charging on your device, connect it to a battery charger that supportsAdaptive fast charging or Quick Charge 2.0.Increasing the charging speedTo increase the charging speed, turn the device or its screen off when you charge the battery.While charging the battery when the device is turned off, the icon appears on the screen.If the fast charging feature is not activated, launch the Settings app, tap Device maintenance→ Battery → → Advanced settings, and then tap the Fast cable charging switch toactivate it.• You cannot use the built-in fast charging feature when you charge the batteryusing a standard battery charger.• If the device heats up or the ambient air temperature rises, the charging speed maydecrease automatically. This is a normal operating condition to prevent damage tothe device.
