It is nice that they give instructions on how to remove the battery with the right tools it can be accomplished. However reassembly should be addressed for people who have never done this before. I had difficulty making the last connection on to the motherboard with the connector that is attached to the back cover. I tried using my dominant hand several times to no avail. Apparently you need your dominant hand to hold the cover steady while you use your fingers from your non-dominant hand to press down to connector. My Water Seal adhered to the watch and I had to carefully reuse a spudger to remove it and then reshape it so it would fit back onto the back cover. And then during reassembly I had to carefully make sure that that part of the water seal was carefully in place before screwing the the cover down.