After multiple drops from the slot in my finishing and framing nail guns, one of my batteries cracked open, exposing the cells inside. With a few household materials, it's easy to repair the damage and correct the problem.
Step 1: Gather Materials
You're going to need:
-Something spongy that you can cut into a little piece
-Hot Glue(Liquid Nail or epoxy is better if you have it and will keep the battery secure if you drop it again)
Step 2: Cut the Foam
Cut a small section of foam from whatever you decided to use, about 1"x1/2"x1/2".
Step 3: Reassemble the Battery
Put all of the internal pieces back inside the battery and insert the foam into the tab cavity.
Step 4: Add the End Cap
Insert the tab into its respective slot, leaving some room for gluing. The foam will push this tab outwards to better secure it in the nail gun.
Step 5: Glue
Inject some glue/epoxy/Liquid Nail into the crevice and along the fracture. Squeeze it all together and wipe away the excess. Wow those are terrible pictures.
Step 6: That's It!
You just saved thirty bucks! Now you can complete that project or shoot at stuff in the backyard. Or you could have recycled it.