1. Turn the handheld over so the keypad and display are facing down and the back of the handheld is facing up and the chip card reader slot is closest to you.
2. Hold the battery with the connectors facing downwards and towards the back of the handheld.
IMPORTANT: Do not touch the contacts on the battery or the handheld.
3. Insert the two plastic teeth at the bottom of the battery in to the slots at the bottom of the back of the handheld (close to the chip card reader).
4. Lower the battery on to the back of the handheld.
5. Press the top of the battery until a click is heard.