Vertical Battery Grip BG-E20 for Canon 5D Mark IV 5D4 Digital SLR Camera Specifications: Model: BG-E20 Weight: Approximately 310g Product Dimensions: 152.8 x 85.5 x 117mm Compatible Models: For Canon 5D Mark IV (5D4) Power Supply: Uses one or two LP-E6 lithium-ion batteries or six AA batteries Main Functions: 1. Extended battery life: Installing the grip allows for an additional battery to be added, increasing battery capacity during shooting; 2. Improved stability: When attaching a large lens to the camera, stability may be compromised; the grip helps stabilize the camera; 3. Vertical shooting: Vertical shooting is more convenient when photographing portraits. Battery Installation Method for the Grip: 1. Locate the battery compartment switch on the grip and open the battery compartment (pull the tab and rotate it to open); 2. Insert the prepared batteries into the battery compartment (ensure correct polarity) 3. Insert the battery compartment with batteries into the handle's battery compartment and secure the compartment cover Handle Camera Installation Method: 1. Locate the battery compartment on the back of the camera, open it, and remove the batteries (ensure the camera's power switch is off) 2. Insert the handle's electrode pins into the camera's bottom connection port and align the screws with the camera's tripod screw holes, then tighten them. 3. Turn on the camera's power switch and confirm that the LCD display shows information before use. Package includes: 1x Handle (Batteries not included) 1x Instruction manual