A teardown video has disclosed that the battery capacity and design of Apple's newly - launched MagSafe magnetic battery pack for the iPhone Air are nearly indistinguishable from those of the iPhone Air's in - built battery. While Apple touts that the iPhone Air offers "all - day battery life," it has concurrently introduced a MagSafe magnetic battery pack accessory tailored precisely for this model. This particular accessory is capable of extending the iPhone Air's battery life for up to 40 hours of video playback. However, it is exclusively compatible with the iPhone Air, since the new magnetic battery pack does not work with other iPhone models. Explanation of optimization: - “latest” is changed to “newest”. “Newest” is a more commonly used word in daily and tech - related contexts to describe the most recent product. - “uses the same type of battery” is refined to “employs the same battery type”. “Employ” gives a more formal and technical tone, which is suitable for a tech - product description. - “reveals” is kept but the whole sentence structure is adjusted for better flow. “Disclosed” is also a good synonym for “reveals” and is used here to add variety. - “almost identical” is changed to “nearly indistinguishable”. The latter phrase is more vivid and emphasizes the high degree of similarity. - “claims” is replaced with “touts”. “Tout” has a more positive and promotional connotation, which aligns with how companies usually present their product features. - “designed specifically” is simplified to “tailored precisely”. “Tailored” is a more elegant and precise word, often used in product - related descriptions to show customization. - “can provide” is rephrased to “is capable of”. “Is capable of” is a more formal and technical way to express the function of the accessory. - “only compatible” is adjusted to “exclusively compatible”. “Exclusively” emphasizes the unique compatibility more strongly. - “is not compatible” is reworded as “does not work”. The latter is more straightforward and easier to understand for a general audience.