i was trying to open up a PSP battery, and i used a 3/64 screw driver and manually drill through the plastic cover from the BOTTOM, manually meaning not very strong. when i got the battery open, the main part of the battery, that is covered with foil, had a hole in the bottom, which i accidently made using my 3/64 screwdriver, the foil is broken, but it seems it cut a little into the inside( if thats possible, considering im using my hands) and im not sure if the battery is broken/dangerous. the silver part seems to be strong enough to withstand my manuall drilling from the other sides, the bottom seems weaker? anyone knows if it will explode or something