MOXOM MX-PB213 10000mAh Ultra-Thin Magnetic Wireless Power Bank

The cheapest way into magnetic charging on this shelf, and the plainest — no screen, no translucent shell, just a flat graphite slab that sticks to the back of a phone and charges it at up to 15 W with nothing plugged in.

Wired, it is 20 W over USB-C Power Delivery, which is full speed for essentially any phone. Ten thousand milliamp-hours is about two charges. MOXOM prints "allowed on flights" and a CCC mark on the carton, which matters more than it sounds — a 10000 mAh pack is under the airline limit and this one says so where a security officer can read it.