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In a new support document posted to its website last week, Apple told users they should always make sure to remove any wallet accessories from the back of their phones before using the new MagSafe charger. The connection could damage your credit card, passport, work badge or any other item with a radio chip or magnetic strip, Apple said.

"Before you place your iPhone on your MagSafe Charger, make sure that no objects (like credit cards, hotel key cards, or transit cards) or debris are between them. If your device has a metal case or if it's very thick, remove it. Also remove iPhone Leather Wallet with MagSafe," Apple said in its support document. "If you have a MagSafe case, you can leave it in place."

Sherr, I. (2020, October 26). Apple's iPhone MagSafe charger could ruin your credit card, passport or security badge. https://www.cnet.com/news/magsafe-on-iphone-12-i-still-want-usb-c-but-i-was-wrong-about-apple-magnetic-charger/