Today Apple quietly released a new MagSafe accessory called the MagSafe Battery Pack. The MagSafe Battery pack is a MagSafe accessory that attaches magnetically to your iPhone, or MagSafe Case. Therefore, it is compatible with the iPhone 12 line.
The MagSafe Battery Pack can charge either wirelessly or with a lightning cable. It is recommended that you use a 20-watt charger, or higher, to get the maximum charging speed.
You can order a MagSafe Battery Pack in any color you want, as long as it is white. The MagSafe Battery Pack is available to order now for $99, or the equivalent in your local currency, and it will ship in 3 to 5 business days.
The MagSafe Battery Pack does require iOS 14.7, so be on the lookout for that to be released soon. I have ordered a MagSafe Battery Pack and will do a review of it in due time.