I have a Huawei P9 and the LCD screen is broken.

I'm thinking that I want to try to repair it on my own - but before I do that I would like to ask a few things.

I was watching the Huawei P9 teardown video and it seems to me that before I can replace the screen then I need to remove the battery from it's place.

The question is do I use any battery sticker or must I use a battery sticker designed for the Huawei P9.