Question about Feelworld Master MA5

Recommend at least 2 batteries for backup. Plus the FM500H charger. Anonymous is right about weight. That's why I also power the monitor with a 12V powerbank in addition to the Blackmagic.

I can't speak for Digitec here, but all batteries from the Sony NP-F series certainly fit on the monitor. That means an NP-F550, 750, 970 etc. Of course also from other manufacturers who supply NP-F batteries. Patona, for example. I use a Patona NP-F750. It's the perfect compromise between battery charge, weight and price, because the very large batteries make the small but light monitor very "battery-heavy".