MagSafe Battery Pack now provides 7.5W charging after firmware update

Apple has enabled charging speeds of up to 7.5W on its MagSafe Battery Pack in the latest firmware update for the iPhone accessory, which was released on Tuesday.

The firmware update was released on April 19 as an over-the-air update. While patch notes weren't provided at the time, Apple has since updated a support document to clarify that the update brings an improved charging rate.

"In order to get 7.5W charging on the go, update your MagSafe Battery Pack to the latest firmware," Apple writes. "The firmware update begins automatically after you attach your battery pack to your iPhone. The firmware update can take about one week."

Previously, the MagSafe Battery Pack topped out at 5W of charging — about the same as Apple's ubiquitous power brick that's no longer included with devices.

Users can check which firmware version they have on a connected iPhone by heading to Settings > General > About > MagSafe Battery Back. The firmware update that enables 7.5W charging is version 2.7.b.0.

Apple first launched the MagSafe Battery Pack in July 2021 for the iPhone 12, but it is also compatible with iPhone 13 devices. At the time, some users were disappointed by the charging speeds since other MagSafe accessories can provide up to 15W of charging output.

11 Comments

NYC362 101 comments · 4 Years

About 2 years ago

If you plug the battery into a MacBook, iMac, or iPad (Air or Pro), the update can take just a few minutes.

emoeller 588 comments · 17 Years

Mine updated in minutes yesterday once I disconnect and then reconnected it to my iPhone 13P and then checked the battery status in Settings. I think the "up to one week" note refers to simply automatically updating without doing any checking as then the servers will have to locate the device for the update.

dj2k3000 16 comments · 8 Years

NYC362 said:

If you plug the battery into a MacBook, iMac, or iPad (Air or Pro), the update can take just a few minutes.

Confirmed. Thank you for this tip! I just connected the battery to my 2018 iPad Pro, and it updated within 15 minutes or so.

dj2k3000 said:

NYC362 said:

If you plug the battery into a MacBook, iMac, or iPad (Air or Pro), the update can take just a few minutes.

Confirmed. Thank you for this tip! I just connected the battery to my 2018 iPad Pro, and it updated within 15 minutes or so.

I really should've mentioned that I read about doing that on another site, so the thanks is appreciated, but I won't take all the credit. :smirk:

RaySajuuk 4 comments · 7 Years

Here is how you manually update the firmware:

All you need to do is to connect the MagSafe Battery Pack to your Mac via USB-C to Lightning cable and leave it connected for a few minutes. Make sure you are on the latest macOS, it will automatically update the firmware. (Also works with iPhone and iPad, but you won't be able to easily check for progress as on Mac.)

If you are interested, you can open the console and filter "updater", you will see a few processes in the background checking and updating the firmware for your MagSafe Battery Pack.

You can also check look for the firmware update file located at "/System/Library/AssetsV2/com_apple_MobileAsset_UARP_A2384/"