Sony NPFZ100 Z-Series Rechargeable Battery Pack for Alpha A7 Iii, A7R, A9 Digita

High capacity for long life, approx.2.2 times of the NP-FW50
Electrical capacity of 16.4Wh (7.2V/2280mAh). Dimensions (W × H × D): Approx. 38.7 x 22.7 x 51.7 mm (1.56 x 0.91 x 2.13)
iNFOlithium enables remaining charge display on camera LCD screen. Weight: 3.0 ounces
Compatible Models: 
ILCE-6600/ILCE-6600M/ILCE-7RM4/ILCE-7M3/ILCE-7M3K/ILCE-7RM3/ILCE-9
Depending on the model, the operation may be restricted or additional accessory products may be required. Please refer the manufacture site for details.