1. First, insert the battery into the blower, and press and hold the activation button on the battery for 5 seconds until the LED indicator starts flashing.

2. Next, connect the blower to the power adapter and plug it into the power socket. Wait a few seconds, and the LED will flash twice, indicating that the battery has been activated.

3. If the battery is not activated successfully, you can press and hold the activation button on the battery for 5 seconds again, then connect the blower to the power adapter and plug it into the power socket, wait for a few seconds and try again.

4. Before using the battery, it should be fully charged. You can use the power adapter attached to the 3M blower for charging, and the charging time takes about 2-3 hours.