Sony NPA-MQZ1K 2 battery holder/snap

Multi Battery Adapter Kit, 23.4 x 67.8 x 66.2 mm, 400 g For extended shooting
This battery adapter can load four NP-FZ100 Z-series batteries and supports extended shooting.

Supply power to a camera compatible with Z- or W-series battery
This Multi Battery Adapter Kit can connect and supply electric power to a camera that uses either an NP-FZ100 Z-series or NP-FW50 W-series battery. By removing the cover for Z-series battery (figure [A]), the power plate (figure [B]) fits cameras compatible with W-series battery.

Quickly charges NP-FZ100 batteries
This battery adapter can quickly charge up to four NP-FZ100 Z-series batteries via AC adapter within about 480 minutes. Power charge condition is indicated in a 3-level LED when the “remaining battery power” check button is pressed.

Select power supply or battery charge
DC OUT/CHARGE switch placed at the center of the control panel allows you to choose either supplying power from the batteries or charging the batteries.

Equipped with two USB ports for power output
Camera/USB selector enables switching between DC OUT destinations to let you choose to supply electrical power to either the camera body or other electronic devices connected via USB ports.

Setting flexibility for varied shooting scenes
This battery adapter provides three screw sockets on both top and bottom of the unit (a total of 6 sockets), allowing a flexible rig setup using a mounting plate and screws.

Turn into a more compact size
If you remove battery protector and put battery port covers into place, Multi Battery Adapter turns into a smaller easy-to-carry adapter for two batteries.