To remove the battery:
1. Power off battery pack by pressing and holding the power button for three seconds. When the LED lights flash, the power is off.
2. Insert the battery key and turn counterclockwise.
3. Lift and remove the battery from the bracket.
To install the battery:
1. Turn key clockwise until is stops.
2. Push the battery pack downward until you hear a click.
3. Remove the key and store safely.