Agree with @ropie that the battery is easy to replace. I did this last week as my first time operating on a dap. The video link they will provide is ok. As an added note, do a video of yourself as you remove the screws so that you know which screws return to where. There are three different sizes and holes that have no screws so it can get a little confusing. At least it did get a little for me. Good luck!