Find the battery compartment cover at the bottom of the early education machine and loosen the two screws on the battery compartment cover with a screwdriver.

1. Open the battery box cover and take out the old battery.

2. Take out the new battery to ensure the correctness of polarity (usually there will be "+"and "-"signs on the battery).

3. Put the new battery into the battery box and ensure that the battery is installed firmly.

4. Close the battery box cover, and then tighten the two screws on the battery box cover with a screwdriver.

5. After installing the new battery, let the early education machine stand by for 5- 10 minutes to check whether it works normally.