The Panasonic DMW-BGS1 Battery Grip is designed to work with the new LUMIX S1 and S1R mirrorless cameras. It can hold two DMW-BLJ31 batteries, offering a shooting time of twice as more than earlier. The battery grip has a Hall IC opening for proving feedback warnings to prevent malfunctions. On the battery grip, there are control buttons positioned on the vertical side similar to the LUMIX S1 and S1R cameras. Additionally, the grip construction is resistant to water splashes, dust, and extreme temperatures.