The iPhone 12 Pro Max battery is expected to be smaller as compared to the previous 11 Pro Max.
This was revealed in a listing in a Chinese certification site TENAA.
As per the listing the 12 Pro Max is expected to have 3,687mAh.
This will potentially mean that it is 282mAh less than the 11 Pro Max.
However, apple is yet to officially released the capacity but claims it will have upto 20 hours of video playback time.
This will be among the changes and upgrades in the new model as it also comes with the capacity for longer zoom and has bigger image sensor.