Remove the battery pack if there is one inside your camera.Slide the neck of the BG-7D into your Canon dSLR Camera’s battery compart-ment.Firmly tighten the (7) Attachment Wheel by rotating it in the direction shown bythe LOCK Arrow.Inserting BatteriesThe BG-7D can be used with one or two LP-E6 Rechargeable Li-Ion batteries orwith 6 AA batteries inserted in the (b) AA Battery Magazine. Before inserting bat-teries, be sure that the camera is OFF and that the BG-7D (17) Operation Switch isin the “OFF” position.Slide the (4) Battery Chamber Latch on the back of the BG-7D to the right andopen the (10) Battery Chamber Cover.Insert LP-E6 batteries directly into the (3) Battery Chamber of the BG-7D. If you areinserting only one LP-E6 battery, you may slide it into either slot of the batterycompartment. (When closing the (10) Battery Chamber Cover, be sure to secure ituntil it clicks into place.)Alternatively, you can insert six AA batteries into the (b) AA Battery Magazine.Please be sure that the “+” and “-” are correctly aligned.slot for batterycompartmentcoverbattery-compartmentcover