Wireless charging is a way to charge your phone or other compatible devices without needing to plug it in with a cable. You place your device on a charging pad or stand, and it will start charging automatically using an electromagnetic field. A chip controls the charging process to ensure it's safe and doesn't damage your device. 

Yes, the iPhone 11 does have wireless charging capabilities. 

Neither magnetic charging nor wireless chargers are particularly bad for batteries. A battery slowly wears as it is charged or discharged over time. Leaving devices always charging can be harmful to their batteries. It's recommended to unplug the device once it is charged. 

No, the iPhone 7 does not have wireless charging capabilities.

The first-generation iPhone SE (released in 2016) does not have wireless charging capabilities. However, the second-generation iPhone SE (released in 2020) does support wireless charging.

Apple devices: iPhone 8 and later

Samsung devices: Galaxy Note phones: Galaxy Note20 5G, Note20 Ultra 5G, Note10+, Note10, Note9, Note8, and Note 5, Galaxy S phones: S23 series, S22 series, S21 series, S20 series, S10 series, S9 series, S8 series, S7 series, and S6 series, Foldable phones: Galaxy Z Fold, Z Fold2, Z Fold3, Z Fold4, Z Flip, Z Flip 5G, Z Flip3, and Z Flip4

Google Pixel devices: Pixel 3, Pixel 3 XL, Pixel 4, Pixel 4 XL, Pixel 5, Pixel 6, Pixel 6Pro, Pixel 7, Pixel 7 Pro

Wireless phone chargers use a technology called Qi that transfers energy wirelessly from the charger to the device being charged. Qi works through electromagnetic fields between two coils, one in the charger and one in the device being charged.

To use a wireless charger pad, first plug it into a power source and place your Qi-compatible device on the pad, making sure it's centered and aligned with any guidelines provided. Wait for the charging process to start, which may be indicated by a light or other indicator. It's important to note that not all devices are compatible with all wireless chargers, so check your device's specifications to ensure compatibility with the charger and the Qi standard.

Wireless charger pads use a technology called inductive charging to transfer energy wirelessly from the charger to the device being charged. This works through two coils, one in the charger and one in the device, that create an electromagnetic field. Most charger pads use the Qi standard, which allows communication between the charger and device to optimize the charging process.

Wireless charging stands are similar to charging pads, but hold the device at an angle so it can be viewed while it charges. They work by using inductive charging, which transfers energy wirelessly from the charger to the device being charged. The charger contains a coil of wire that creates an electromagnetic field, and the device being charged contains a coil that picks up this field to charge the battery. Most charging stands use the Qi standard, which optimizes the charging process by adjusting power and speed, and the device can be used and viewed while it charges.