foxyguy

foxyguy t1_jdvzlci wrote

You’re correct, although you can get 15W when connected to a power adapter.

> If connected to a 20W or higher power source, your MagSafe Battery Pack can charge your iPhone with up to 15W of power. In order to get 7.5W charging on the go, update your MagSafe Battery Pack to the latest firmware. The firmware update begins automatically after you attach your battery pack to your iPhone. The firmware update can take about one week.

https://support.apple.com/en-us/HT212174

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