If batteries have become corroded and stuck in a flashlight, they will need to be knocked loose with a hammer or removed with a drill. This will require care and caution.
- A dowel rod
- A drill
- A hammer
- A hard surface to work on
The dowel rod must be slender enough to fit inside the flashlight but also as wide as the batteries.
First, check to see if the front and back of the flashlight can be unscrewed. If they can, remove both ends and place the flashlight against a hard surface. Then, take the dowel rod, place it against the battery, and strike it with the hammer until it dislodges.
If the flashlight only opens at one end, the drill will be needed. Using a long drill bit, drill a hole into the back of the battery. Once the drill is firmly embedded in the battery, pull the battery out using the drill.