Apple today released new software for the iPhone Air. The new software version is 8B25, up from 8A351. In the Settings, the new software is listed as 99.0, up from 91.0.
See also: iPhone Air failure leads away from ultra-thin phones

This is the second software update Apple has provided to iPhone Air users since the battery was released in September. Apple hasn't provided details on what the software updates for the accessories include, but the new software likely offers performance and efficiency improvements.
Software updates for accessories are done silently, without the user's knowledge, so Apple doesn't offer installation instructions. The MagSafe battery's software should update when the battery is connected to the iPhone Air, but you can also force an update by connecting the battery to a Mac.
You can check the software version number of your MagSafe battery by connecting it to your iPhone Air and then going to Settings > General > About > iPhone Air MagSafe Battery.
See also: Best portable iPhone Air battery: Apple MagSafe Battery vs Anker Nano

The MagSafe Battery Pack is exclusive to iPhone Air and provides iPhone Air users with up to 65 percent more charge. The Battery Pack is thin and light because it incorporates the exact same battery Apple uses in the iPhone Air.
Apple continues to improve its user experience through these software updates, ensuring that its accessories are running at peak performance. iPhone Air users can take advantage of these improvements without having to do anything, as updates are done automatically.
The integration of MagSafe technology into iPhone Air and its accessories, such as the battery, offers a more seamless and convenient charging experience. The ability to add additional charging with a simple click is a significant upgrade for many users, especially those constantly on the go.
See also: iPhone Slow Charger: What it is and how to fix it

Apple continues to invest in developing innovative charging solutions that meet the needs of modern users, and the iPhone Air's MagSafe battery is a great example of this philosophy.
