How Does Wireless Charging Work?
Wireless chargers use electromagnetic induction to transfer energy to a special receiver in the back of your phone. Smartphones with this receiver are called “Qi-compatible”. To take advantage of wireless charging technology, you will need a Qi-compatible device.
Frequently Asked Questions
Which phones are capable of wireless charging?
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Brand
Model
Charging modes
Apple
iPhone 11 / iPhone 11 Pro / iPhone 11 Pro Max / iPhone X / iPhone XS Max / iPhone XS / iPhone XR / iPhone 8 / iPhone 8 Plus
7.5W Fast-Charging and 5W Standard Wireless Charging Modes
Samsung
Galaxy S20 / Galaxy S20+ / Galaxy S10 / Galaxy S10+ / Galaxy S10e / Galaxy S9 / Galaxy S9+ / Galaxy S8 / Galaxy S8+ / Galaxy Note 9 / Galaxy S7 / Galaxy S7 edge / Galaxy S7 Active / Galaxy S6 edge
10W Fast-Charging and 5W Standard Wireless Charging Modes
LG
LG / LG V30 / LG V35 / G7 ThinQ / G7+ / G6 / G4 / G3
Sony
Sony Xperia XZ3 / Xperia XZ2 Premium / Zperia XZ 2
Google Pixel 4 / Pixel 4 XL / Google Pixel 3 / Pixel 3 XL / Nexus 7 / Nexus 6 / Nexus 5 / Nexus 4
Huawei
Mate 20 Pro / Mate 30 / Mate 30 Pro / P30 Pro / P40 Pro
Nokia
Nokia 8 Sirocco
Blackberry
Blackberry Priv
Microsoft
Microsoft Lumia 1520 / Lumia 1020 / Lumia 930 / Lumia 929 / Lumia 928 / Lumia 920
Other Devices
New Airpods Case / Airpods Pro / Galaxy Buds / Pixel Buds
5W Standard Wireless Charging Only
How fast is wireless charging?
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Wireless charging technology is not yet as fast as conventional wired charging, especially when compared to high-speed charging technologies like Power IQ, Quick Charge, or Power Delivery.
Current wireless chargers have three different potential outputs: 5W (standard), 7.5W (wireless fast-charge for Apple), and 10W (wireless fast-charge for Samsung). Some wireless chargers are capable of delivering all three, depending on the device being used.
To use fast-charging modes, wireless chargers usually require a Quick Charge 2.0/3.0 or Power Delivery wall charger.
Why won’t my phone charge with my wireless charger?
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Try the following steps:
- Make sure that you are using an AC adapter with an output of 2A or more
- Make sure that your phone is placed on the center of the wireless charging surface
- If your phone is in a case, make sure that the case is no thicker than 5 mm
- Remove any obstructions between the back of the phone and the charging surface, like keys, credit cards, or other metal objects
- Try using a different cable
- Restart your phone and try again
What does it mean when the LED indicator on the wireless charger flashes?
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LED indicator
Status
Flashing green
Metal obstruction detected
Flashing green
Incompatible AC adapter or cable connected
Solid blue for 3 seconds, then off
Connected to power
Solid blue
Actively charging a device
Can I charge my phone with my phone case on?
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Yes, but to charge effectively, your phone case should be no thicker than 5 mm. There also should not be any other items on the back of your phone like pop sockets, credit cards, keys, or other metal objects.
Where are the wireless charging coils located on my phone and charger?
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Wireless Charger Coils (Pad and Stand)
Pad
Stand
Phone Coils
iPhone
Samsung, LG, Pixel
Sony
Does wireless charging make my phone hot?
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It’s normal for your phone to become a little warm during wireless charging, but it should not become so hot as to be uncomfortable. If it does so, please discontinue use and contact customer service right away.
Do wireless chargers make noise?
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Wireless chargers do generate a faint noise during operation. If the noise becomes very loud, please contact customer service.
How can I charge Airpods wirelessly?
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We recommend using wireless charging pads to charge the AirPods case. Otherwise, the AirPods case may slip off of the charging surface.
1. Place the AirPods case on the wireless charging surface with the status light facing up (with or without the AirPods inside).
2. The status light will turn on for a few seconds, then off again.
3. If you do not see the status light, try repositioning the AirPods case on the charging surface
4. Due to the AirPods case overheating protection feature, the case may periodically stop charging for a few seconds before beginning again (you will see the status light). This is a normal occurrence while charging.
