Aputure Battery Grip 550DL - Manual (Page 17)

1.Insert the batteries into the Battery Magazine BGM-E8A(for size-AA
/LR6 batteries)
Make sure the + and - battery contacts are properly oriented as shown
in the illustration.
2.Attach the battery magazine into the battery grip.
After attaching,check that the battery magazine is securely attached
to the battery grip.
3.Close the release handle.
Inserting Size-AA/LR6 Batteries
1
2
3