If you charge your iPhone with a MagSafe charger, you may know that your charger also receives firmware updates for improved charging efficiency.
Apple MagSafe Battery Pack Firmware Upgrade: Quick Instructions
If this is new to you, don't worry! This post will guide you through updating your MagSafe Charger's firmware to the latest version, which will improve your charging efficiency.
Apple doesn't directly discuss this MagSafe charger firmware, but it is included in your iPhone updates. As of March 2024, the latest MagSafe charger firmware is 258.0 (10M3761), released with the iOS 17 updates.
To determine the firmware version of your MagSafe charger, follow these steps: