ZGCINE is a Chinese brand specializing in the production of batteries and charging solutions. A few months ago, the company released their ZG-V99, a compact 99Wh V-mount battery solution. More recently, they introduced a 50Wh version, called ZG-V50.Mini V-mount batteries are getting extremely popular these days, as they pack enough power to fire up LED lights or even keep digital cinema cameras running for hours.
Source: ZGCINE ZG-V50 Released – 50Wh Mini V-Mount Battery with PD Fast Charging | CineD