if you’re careful, you can even leave the display attached while removing the battery! I had the display taped up at about a 50-60 degree angle and had no problems in removing the battery and replacing it. The worst part was the 3 little adhesive strips holding the battery in place. the angled tweezers that come in the battery replacement kit were a lifesaver in grabbing those from under the battery when they snapped. I did manage to bend the old battery quite extensively, but I didn’t notice any warming and disposed of it quickly and properly. Whole process was completed in under 30 minutes.