Very useful instructions, followed to the letter and worked perfectly. My battery was also only lasting about 2 hours. I found a replacement on alibaba, installed in about 30 minutes. From fully charged it’s now lasting about 14 hours! [br]
Yo Marc, thank you for the tip about the foam having a backing film! That definitely saved me damaging mine.
Be careful when working down through the layers, as there are cables running through the middle which you don’t need or want to disturb in order to access the battery.
Replacing the leatherette cover is relatively simple (as long as you haven’t damaged it in removal, I suppose) - just turn the thing inside-out, place it over the earpiece and roll it back the right way out while in position. Then the edges just need gentle encouragement to sit in the slot neatly.