Anton-Bauer CINE 150 V-mount (or Gold mount) Battery

Pricing & availability at B&H, Amazon - thanks for supporting us by using these affiliate links!

This is the largest capacity, most sophisticated battery I've ever seen or used that doesn't sit inside a Tesla. It's priced like one (almost $600), but if you need what it does (including smart discharging to new TSA standards to that you can put them in the baggage compartment on a plane), you'll love it. Also available in Gold mount and lower-priced 90 Wh versions.