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Vello BG-S7 Battery Grip for Sony A7R IV, A7S III, and A9 II Series Cameras
The BG-S7 Battery Grip for Sony a7R IV, a7S III, and a9 II Series Cameras from Vello can be installed directly into the camera's battery chamber, just remove the camera's battery door and store it conveniently inside grip's stem. Align the grip stem inside the camera battery chamber to ensure power is being supplied to the camera, then secure the grip to the body using the thumbscrew into the camera's 1/4 -20 tripod socket. The BG-S7 includes a dual battery tray that accepts two rechargeable batteries, doubling the camera's battery life and shooting time. The grip offers a comfortable, extended, rubberized,

Price is $88.00
Price: $87.95