Powering the Arduino Mega with a Lithium Battery

Step 3 Connect the Backpack to the Arduino Mega

There are holes on the Arduino Mega, and corresponding holes on the Mega Backpack. The Mega backpack has two black screws and standoffs that are lined up for connecting to the Arduino Mega. In the picture, the screw closest to the silver USB port, and the screw in the upper right, and both used to connect the Mega to the Mega Backpack.