PENTAX Battery Grip D-BG5

Dustproof & weather-resistant
This grip holds a rechargeable battery identical to the one carried by the camera and an extra SD memory card.
Powered by the twin-battery system paired with the camera’s battery, it nearly doubles the number of recordable images. It also includes a spare battery tray to hold six AA-cell batteries. It features the same dustproof, weather-resistant structure of the camera body.