You can stick with your existing charging cables and adapters, but spending as little as $14 can get you a faster charge.
No charger or EarPods with iPhone 12, confirms reliable leaker - 9to5Mac
iPhone 12 No Charger In Box: The Good, The Bad, And Future Explained
Best iPhone 12 chargers
Can using a non-Apple charger or cable damage my iPhone battery? - Quora
Charge your Apple devices faster with a powerful beautifully designed charging stand that features the latest magnetic fast charging module for Apple Watch Series 8 and official MagSafe charging up to 15W for your iPhone. Features. A fast wireless charge for your iPhone 14 /13 /12 series Apple Watch and AirPods. Up to 15W faster wireless charging for iPhone 14 /13 /12 series. Fast Charging for Apple Watch Series 8 Apple Watch Series 7 and Apple Watch Ultra.
Belkin BoostCharge Pro 15W 3-in-1 Wireless Charger with MagSafe
Is Reverse Wireless Charging Feature Hidden in the iPhone 12?
The MagSafe Charger makes wireless charging a snap. The perfectly aligned magnets attach to your iPhone 12 or iPhone 12 Pro and provide faster wireless charging up to 15W. The MagSafe Charger maintains compatibility with Qi charging, so it can be used to wirelessly charge your iPhone 8 or later, as well as AirPods models with a wireless charging case, as you would with any Qi-certified charger. The magnetic alignment experience only applies to iPhone 12 and iPhone 12 Pro models.
Apple MagSafe Charger - White
Here's how you can easily fast charge your iPhone
No Charger in the Box? Everything You Need to Know About Charging the iPhone 12, by PCMag, PC Magazine
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What Kind of Charger Does the iPhone 12 Use?
Apple Made an Additional $6.5 Billion USD by No Longer Providing Accessories With New iPhones