Product details:

The innovative a9 and a7rIII cameras feature an all-new Sony battery (model NP-FZ100) with 2.2x the capacity of previous Sony full-frame models, allowing for much longer shooting performance. It also supports InfoLITHIUM technology, making it possible to view the remaining battery power as both a percentage display and five-step icon on the cameras LCD screen. More power means longer shooting times so that you can get the best out of your high performance camera.High capacity for long life, approx. 2.2 times of the NP-FW50 W-series battery
Electrical capacity of 16.4Wh (7.2V/2280mAh)
iNFOlithium makes it possible to view the remaining power as both a percentage and display and 5-step icon indication on the camera's LCD screen
More power for longer shooting times