I never thought about getting a V-mount battery when I had my Canon R5 camera. I took mainly pictures and when I did do videos the camera would overheat before I would get through one battery so I never got to the point of needing more energy. Then I upgraded to the R5C and started actually more videography at 4k60p RAW and realized after the first 20 minutes that regular LP-E6NH batteries would not cut it anymore and hence finally purchasing a decent V-mount battery and at the price point to power storage this K&F Concept 99Wh fast charging battery caught my attention. I'm never going back to standard batteries for videography again.

Attached to a SmallRig V-mount battery holder, I now have enough power storage to run an external monitor and my camera in video recording at 4K60P RAW for hours. It's plenty of energy to last for my personal tasks. It is also on the smaller size compared to other batteries in the same size and it doesn't weigh that much. The main two outputs I use are the two USB-C ones. That's what my camera needs for power and what the Viltrox external monitor takes also. A lot of V-mount batteries only have one USB-C (if any at all) output so this one having 2 got my attention and I'm glad I chose this one. I can charge my phone if necessary also (dual function of a battery of this size). If you're going to do videography, I absolutely recommend a V-mount battery and this K&F Concept one with a nice LCD screen that gives you output and input data on the screen is definitely a great buy.