closeIs fast charging
bad, or does it damage batteries?
To ensure safety and optimal speeds, always check that your fast charging accessories are
certified to be compatible with your smartphone. This is most likely going to be Quick
Charge or USB Power Delivery. Certified accessories ensure the charger or cable meets
performance and safety standards. With a charger or cable that’s not certified, there’s an
increased risk of shorting or overheating, which can damage both your device and charger.
Your charger may get warm while powering devices, but if it’s produced by a reputable
manufacturer and certified compatible, there’s nothing to worry about. These certifications
mean a series of safety measures have been taken. A controller chip regulates the flow of
electricity to your battery, ensuring there aren’t any dangerous spikes in the current while
temperature and voltage controls keep your charger running within safe parameters.
Before purchasing or using a fast charging accessory with your device, you should first
verify that the product you are using is:
- Manufactured by a trusted brand
- Qualcomm Quick Charge or USB Power Delivery certified
- Includes technical specifications and warranty details that protect your device from
damage caused by the accessory
closeWhy is fast
charging not working?
There are a few reasons why fast charging may not be working on your device. Below are a list
of common causes and suggested trouble shooting:
- Your device might not support fast charging.
View our list of devices that support fast charging below to check.
- Your phone may not recognize the accessory is connected.
Try unplugging and re-plugging in the fast charger from the outlet and device.
- Your circuit breaker may have been tripped and is not working.
Try plugging something else into the outlet or plugging your fast charger and device
into another outlet. If nothing is working in the outlet, try resetting its circuit
- For Samsung devices: you may need to enable fast charging and or turn off your screen.
See our FAQ on how to enable fast charging on Samsung phones for more details.
- Your device is having a software issue.
First, make sure your software is up-to-date. If your software is up-to-date, try
restarting your device. As a last resort, you can also choose to factory reset your
- Your device is having a hardware or battery malfunction.
If it is an older device, this might be the case. Try using the fast charger on a
different device. If your fast charger works, the problem is with the first device.
- Your fast charger could be faulty or broken.
Try using the fast charging accessory on a different device. If it still does not
work, the problem is likely with the fast charger.
If following steps 1 – 7 does not solve the issue, contact the fast charger accessory
manufacturer for additional assistance.
closeWhich iPhone and
Android devices support fast charging?
Fast charging is available on:
- iPhone 8 and later
- Samsung Galaxy S6 and later
- Pixel 2 and later
- iPad Pro (1st Generation) 12.9inch and later
The number of devices enabled with fast charging technology is growing every day, check your
device’s manufacturer for the most up-to-date information.
closeHow do I turn on
Some devices need to have fast charging enabled to work. If fast charging needs to be enabled
on your device, you can refer to device manufacturer. For Samsung devices, follow the steps
Go to Settings > Device > Maintenance > Battery > Advanced
Settings and toggle on fast cable charging.
Note: your screen must be turned off for fast charging to begin once enabled on your phone.
closeWhat is adaptive
The original and most popular types of fast charging standards are USB Power Delivery and
Qualcomm Quick Charge, but you may have heard about Adaptive Fast Charging, TurboPower, and
SuperCharge. Most of these are based on Quick Charge or USB Power Delivery and have been
rebranded for marketing purposes.
For example, Adaptive Fast Charging (Samsung) is using Quick Charge
standards, while TurboPower (Motorola) and SuperCharge (Huawei/Honor) are based on
USB PD charging
closeHow do I identify a
To ensure a charger will fast charge your device, you can check with the manufacturer for
compatibility. As a general rule, a charger needs to be at least 18W from a single port to
deliver fast charging. You can also check for the USB Power Delivery and Quick Charge logos
closeHow fast do phones
charge with fast charging?
USB Power Delivery (iOS/iPhone and Android/Google Devices):
- iPhone 8 or later will charge from zero to 50% in 30 minutes*
- iPad Pro recharges from zero to 50% in 60 minutes*
- Pixel 2, 2 XL, 3, and 3XL recharge from zero to 50% in 37 minutes*
Listed USB-PD devices and speeds reflect capabilities as of July
Qualcomm Quick Charge (Samsung, LG and other smartphone and tablet
- Quick Charge 3.0-compatible devices charge from zero to 80% in 35 minutes*
- Quick Charge 4.0-compatible devices charge from zero to 50% in 15 minutes*
Listed Quick Charge devices and speeds reflect capabilities as of
*Charge time varies with environmental factors; actual results will
closeHow can I tell if
my phone is fast charging?
When your phone is fast charging, a small lightning symbol will appear on your phone.
Fast charging is automatic when available and does not deliver a confirmation of charging
For Pixel, LG, and other smartphone devices:
Many devices display ‘Charging rapidly’ or ‘Fast charging’ instead of simply ‘charging’ on
the lock screen.
For other devices, please contact your manufacturer.