Fast Charge for Galaxy S8 Active
For fastest charging times, use the Adaptive Fast Charger that came with your phone. This charger provides faster charging only when connected to phones that support Adaptive Fast Charging.
Use only charging devices and batteries approved by Samsung. Samsung accessories are designed for your phone to maximize battery life. Using other accessories may invalidate your warranty and may cause damage.
Turn On Fast Cable Charging
Navigate to Apps > Settings.
Touch Search, and then search for and select Battery.
Touch More Options.
Touch Advanced settings.
To turn on Fast cable charging, touch the slider.
Insert the USB cable into the USB charger/accessory port.
Connect the USB cable to the Adaptive Fast Charger and then plug the assembly into a standard outlet.
Unplug the Adaptive Fast Charger from the outlet and remove the USB cable from the phone when charging is complete.
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