Thank you all for your help. The photos were really useful. Some tips I learned:

1. The black cap that hides the two screws on top can be tapped off if you use a small screw driver and tap it from each side. It is just friction fit on. You will need a torx bit that is at least an 1" deep. Some shorter bits won't fit in the deep well.

2. You only have to take off the charge cap side. Once you take off the cap you do not need to slide the battery out. Just make an incision on the upper left. If you make a horizontal slit you can use needle nose to pull out the fuse.

3. It is a mini fuse.