The Sony NP-FZ100 is a replacement battery for the Sony Alpha A9, A9 II, A7s III, A7 III, A7R IV, A7C and A6600 Digital Cameras. Sony NP-FZ100 Battery The Sony NP-FZ100 is a replacement battery for the Sony Alpha A9, A9 II, A7s III, A7 III, A7R IV, A7C and A6600 Digital Cameras. The battery operates at 2280mAh, 7.2V / 16.4Wh, and can be used as a replacement or a spare. Key Features Dimensions (W H D): Approx. 38.7 x 22.7 x 51.7 mm (1 9/16 x 29/32 x 2 1/8 inches) Weight: Approx. 83 g (3.0 oz) Capacity: 7.2V / 16.4Wh (2280mAh)