Grab one of the two batteries from the battery case

Open the back of the Selfie Stand (Code 202)
On the back of the light, locate the battery holder and notice the metal prongs on the bottom

Slide the batter pack down into the holder until it clicks into place. (The prongs will go into the bottom of the battery pack)

To remove, use the red button next to the battery pack and lift up.
*Each battery should last 6-7 hours on 50% light power