Macworld One of the reasons why customers opt for Apple’s iPhone Pro Max is because of the larger battery. The current iPhone 15 Pro Max offers up to 29 hours of video playback and that might improve with the upcoming iPhone 16 Pro Max. According to analyst Ming-Chi Kuo, Apple’s top-end iPhone is getting a boost in battery life but not by making the battery bigger–it’ll stay the same size as the 15 Pro Max. Kuo reports that Apple has increased the energy density–essentially, how much charge it can hold–which results in the battery lasting longer. Kuo doesn’t offer any information as to how muc…