Wireless power banks work by utilizing electromagnetic induction to transfer energy wirelessly to a compatible device. Here’s how the process works:

1. Internal Battery Storage: A wireless power bank has an internal battery that stores electrical energy when charged through a USB or power outlet. It holds this power until you need to use it to charge a device.
2. Inductive Charging Technology: When a compatible device (like a smartphone with wireless charging capability) is placed near the power bank’s charging surface, the power bank uses inductive coils to generate an electromagnetic field. The device also has a corresponding coil, which converts this field into electrical energy.
3. Wireless Charging Process: The power bank and the device need to be properly aligned for efficient charging. Once the coils in both devices are aligned, the power bank transfers energy wirelessly, charging the device’s battery.
4. Magnetic Alignment (if applicable): Some wireless power banks, especially MagSafe or Qi2 models, use magnetic alignment to ensure the phone stays in the correct position for continuous charging, improving efficiency.

In addition to the wireless functionality, most wireless power banks also have ports (like USB or USB-C) for wired charging, making them versatile for both wired and wireless use. The wireless charging feature offers convenience, especially when you're on the go and don't have access to a charging cable.

Apple devices: iPhone 12 and later

Yes, you can charge a wireless power bank wirelessly, but only if it is designed with reverse wireless charging capabilities. Some power banks are equipped with the ability to be charged wirelessly on a compatible charging pad, in addition to wirelessly charging other devices.

If you want a power bank that supports wireless charging for both itself and other devices, make sure it’s clearly labeled as having this feature.

A power bank and a wireless charger serve the same basic function—charging your devices—but they operate differently and have distinct features. Both devices serve different purposes, and many users own both for different scenarios. Here’s a breakdown of the key differences between the two:

1. Functionality

• Power Bank:
• A power bank is a portable battery pack that stores electrical energy and allows you to charge your device on the go. You connect your phone or other devices to the power bank using a cable (typically USB) to charge them.
• Power banks can charge your phone anywhere, even without access to a power outlet, as long as the power bank itself has been charged beforehand.
• Wireless Charger:
• A wireless charger is a stationary charging pad or stand that uses inductive charging to transfer power to your device wirelessly. You place your phone on the charging surface, and it begins charging via electromagnetic fields, without needing a cable connected to the phone.
• A wireless charger typically needs to be plugged into a power outlet to function and is not portable in the way a power bank is.

2. Portability

• Power Bank:
• Highly portable. You can take it with you anywhere and use it to charge devices on the go. It stores energy in its internal battery, making it useful when there’s no access to a power outlet.
• Wireless Charger:
• Not portable in most cases, as it requires a connection to a power source (like a wall outlet). It is typically used in fixed locations like homes or offices.

3. Charging Method

• Power Bank:
• Requires a cable to connect your device to the power bank (though some power banks also offer wireless charging features in addition to the standard cable ports).
• Wireless Charger:
• Uses inductive charging, which doesn’t require a cable between the charger and the phone. However, the wireless charger itself still needs to be plugged into an outlet.

4. Power Source

• Power Bank:
• Contains a built-in battery that stores energy. Once the internal battery runs out, the power bank needs to be recharged (usually by connecting it to a wall outlet or USB port).
• Wireless Charger:
• Does not have a built-in battery. It directly draws power from a wall outlet and transfers it to the device.

5. Capacity

• Power Bank:
• Comes in different battery capacities (measured in mAh), determining how much charge it can hold and how many times it can recharge your device before needing to be recharged itself. Power banks with higher capacity can charge devices multiple times.
• Wireless Charger:
• Has no internal battery or capacity, as it delivers power from an external source (such as an electrical outlet). Its effectiveness depends on the charging speed it can deliver, which is usually rated in watts (e.g., 5W, 10W, 15W).

6. Convenience

• Power Bank:
• Convenient for traveling or emergency situations where you may not have access to a power outlet. It can charge any USB-enabled device using a cable, including phones, tablets, and other gadgets.
• Wireless Charger:
• Convenient for cable-free charging at home or work, but it’s stationary and generally slower than wired charging (although some wireless chargers support fast wireless charging).

7. Use Cases

• Power Bank:
• Ideal for on-the-go charging when you're away from a power source. It's useful for outdoor activities, travel, or emergencies.
• Wireless Charger:
• Ideal for convenient, cable-free charging in a stationary setup like a desk, bedside table, or kitchen counter. It offers easy access to charge your device without fumbling for cables.

Not all wireless power banks are magnetic, but some do feature magnetic alignment, particularly those designed for compatibility with systems like Qi2 and MagSafe. These magnetic wireless power banks can securely attach to the back of compatible devices, ensuring proper alignment for efficient charging. Belkin offers a wide range of Qi2, MagSafe, and magnetic wireless power banks.

Magnetic wireless power banks are especially useful for devices that support magnetic charging, as they help maintain a stable connection while charging, reducing the risk of misalignment. If you're interested in a magnetic wireless power bank, look for models that specifically mention Qi2, magnetic compatibility, MagSafe compatible or similar systems. Otherwise, many wireless power banks will charge devices simply by placing them on the charging pad without any magnetic attachment.