Apple Releases Firmware Update for iPhone Air MagSafe Battery

Tuesday December 2, 2025 12:38 pm PST by Juli Clover

Apple today released new firmware for the iPhone Air's MagSafe battery accessory. The firmware has a version number of 8B25, up from the prior 8A351 version. In the Settings app, the new firmware is listed as 99.0 while the prior firmware is 91.0.

apple iphone air battery pack
This is the second firmware update that Apple has provided to ‌iPhone Air‌ users since the battery was released in September. Apple does not provide details on what's included in firmware updates for accessories, but the new firmware likely provides efficiency and performance updates.

Accessory firmware updates are done quietly without the user knowing about them, so Apple does not offer installation instructions. ‌MagSafe‌ Battery firmware should update when the battery is connected to the ‌iPhone Air‌, but you can also force an update by connecting the battery pack to a Mac.

You can check the version number of the ‌MagSafe‌ Battery's firmware by attaching it to an ‌iPhone Air‌, then going to Settings > General > About > ‌iPhone Air‌ ‌MagSafe‌ Battery.

The ‌MagSafe‌ Battery is exclusive to the ‌iPhone Air‌, and it provides ‌iPhone Air‌ users with up to an additional 65 percent charge. The Battery Pack is thin and light because it actually incorporates the exact same battery that Apple used in the ‌iPhone Air‌.

Related Roundup: iPhone Air

Tags: Apple Firmware Updates, iPhone Air MagSafe Battery, MagSafe Guide

Buyer's Guide: iPhone Air (Neutral)

Popular Stories

iPhone Duo Tips Over on MagSafe Stands When Unfolded

Wednesday October 21, 2026 10:24 am PDT by Juli Clover

Some upright MagSafe charger designs won't work well with the iPhone Duo when it's unfolded. As demonstrated by Mrwhosetheboss, the uneven weight of the iPhone Duo can cause it to tilt on a charger when it's open. The MagSafe ring on the back of the iPhone Duo is only on one half, and some chargers don't have strong enough magnets to hold up the Duo with the extra weight on one side. iPhones ...

• 78 comments

More Fun iPhone Duo Apps: 30 New Picks to Try

Friday November 6, 2026 3:27 pm PST by Juli Clover

When the iPhone Duo launched, we shared a list of some of the fun apps developers created for the new form factor. Two weeks out, developers are continuing to come up with fresh ideas, so we thought we'd share some of our favorites. Games Marbles Unhinged ($2.99) - Marbles Unhinged is a marble maze designed for the Duo. When you fold it, the floor turns into a ramp. If you stand the top...

• 65 comments

Apple Launching Five New Products Today

Thursday November 5, 2026 12:59 am PST by Tim Hardwick

Apple is launching five new products on Friday, November 6, following pre-orders that opened last week, including its first touchscreen MacBook Pro models. The following new products will be available from today: iPad mini with OLED display and A20 Pro chip iMac with M6 chip 14-inch MacBook Pro with M6 chip 14-inch MacBook Pro with OLED touchscreen 16-inch MacBook Pro with OLED...

• 27 comments

Top Rated Comments

teh_hunterer

12 months ago

Exactly. That’s the huge strategy.
No one will be happy with the given battery life and everyone needs to buy this battery pack.

Rubbish, the battery life on the Air is fine.

Score: 19 Votes (Like | Disagree)

aParkerMusic

12 months ago

So we made iPhone thinner and lighter than ever by giving it poor battery life. But now worries we can make even more money by selling an overpriced accessory that makes your iPhone air as thick and heavy as a regular iPhone pro.

It’s rated at the same battery life as my iPhone 16 Plus. I use my phone all day long and I’ve never dropped below 45% in a day.

THE MISCHARACTERIZATIONS NEED TO STOP!

Score: 15 Votes (Like | Disagree)

madrigal77

12 months ago

So we made iPhone thinner and lighter than ever by giving it poor battery life. But now worries we can make even more money by selling a overpriced accessory that makes your iPhone air as thick and heavy as a regular iPhone pro.

What poor battery life? It has the same battery life as the 16 Pro.

Score: 13 Votes (Like | Disagree)

GDF

12 months ago

So we made iPhone thinner and lighter than ever by giving it poor battery life. But now worries we can make even more money by selling an overpriced accessory that makes your iPhone air as thick and heavy as a regular iPhone pro.

Battery life is not poor, as is the same as my 16 Pro or maybe even a little better. People that keep saying that are clueless. Amazing they built a larger/thinner phone and still have the same or better battery life than a 16 Pro and not much worse than a 17 Pro.

And the MagSafe battery accessory is not overpriced, as I purchased from Walmart for $59. Not much different than the nearest competitor Anker’s battery pack and would rather have Apple’s.

Score: 10 Votes (Like | Disagree)

Damian83

12 months ago