- Unscrew the tail cap from the Mini Maglite flashlight by turning it in a counterclockwise direction.
- Tilt the Mini Maglite until the batteries slide out. Properly dispose of the new batteries.
- Check that the battery contacts on the tail cap and light end of the Mini Maglite are clean and free of corrosion. Remove any dirt or corrosion found using a pencil eraser or fibreglass pencil.
- Slide in the new batteries, ensuring the positive end of the batteries point toward the light end of the Mini Maglite and the negative ends point to the tail cap.
- Screw on the tail cap, turning it in a clockwise direction until tight.
- If the batteries inside the Maglite leak, the batteries often swell and become stuck in the body of the torch, and the corrosion can stop the tail cap from being removed. Maglite has an agreement with Duracell, Eveready and Rayovac, and if these batteries leak you can return the torch to Maglite for a free repair or replacement. Discount replacements are available for other battery brands.