There should be a small plastic sheet adhered to the top of the battery. Gently peel it off - we’re going to use it to lift the battery.

This might not be the best way to do it, but it seems to be the easiest for anyone not familiar with this type of stuff.

Use the plastic sheet to carefully pull upwards at the edge of the yellow tape on the battery. This should help release the small amount of adhesive.

Once the adhesive releases, gently pull the battery out of the way.

Then, you’ll need to get its connector out of the way. If it’s giving you trouble, try wiggling it a little to coax it out.