K&F Concept 99Wh V-Mount Battery with PD100W USB-C Fast Charging and Multi-Output Ports, TFT Digital Screen & Emergency Light for Camera, photography light, smartphone, laptop etc.

Loved it! It works very well, good number of outputs. It charges quite quickly with a 100w x USB-C charger. The construction of both the V-mount anchor and part of the chassis is metallic, other parts are plastic. The display provides useful information without being ostentatious. I think the price quality is the best I could find.
PS: Power a Z6III + a Hollyland Mars 400 pro for about 4 hours and the battery was at 60% recording clips during that time.

I’ve been using this battery for all video shoots the last few months and it’s been very reliable, and seems to have a great battery life. I don’t use it for more than 2ish hours but it never has dropped below 50%, and charges back up within an hour or two. It’s a little on the heavy side, but that’s not a huge con as heavier tripod setups are often more stable. The only issue I have with it is the D-tap port is upside down which is a little weird, but everything else about the battery is great

A v-mount plate lives on it and I store it in my case like that to quickly slide it onto either of my cameras. It’s compatible with both my camera cages so it works well for any setup.

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.

I bought 10 of these about a year ago. In that time I noticed two things; on random occasions, the screen seems to display 0% battery, but voltage shows that they are deffinetly not discharged. The other thing are the rubber flaps for the d-tap and the ports on the top. Both of those broke off on a bunch of the batteries. I still use all of the batteries without any problem, they work just fine, but these areas could be improved upon.

This is a 5 months later review.

Pros:
Works as advertised, lasts a long, long time, looks very premium with its metal shell, screen adds information and functionality.

The price of this thing when it goes on sale is unbeatable.

Cons:
The clear plastic rear is prone to scuffs and scratches and the battery cannot be turned off when plugged in, which causes it to lose power over time.

I bought this battery about two months ago to use with my Sony FX6, and I’ve been very happy with it. One of the main reasons I chose this model was the range of output ports — USB-A, 2 USB-C, DC, and D-Tap — exactly what I needed for my setup.

To be honest, I’ve worked with batteries from other brands too, and for the price, this one holds up surprisingly well. On a full charge, it powers my camera for a solid 5–6 hours with no issues.

It also charges relatively fast, and I haven't run into any problems so far. The design is sleek, durable, and feels premium in hand.

Overall, I’m very satisfied and will definitely be buying another one!

I started of my V-Mount journey with a larger (dimensions) Neewer V-Mount with many ports but only one USB-C. I've now relegated that one to powering my portable key light. This battery is so nice, works well, is smaller with the same capacity, and has two USB-C ports.
I'm trying to think of anything I won't be able to power on a run-and-gun rig. I'm currently powering a Sony ZV-E1, Viltrox D550 Pro external monitor, Ulanzi CU01 Thermostatic (new) fan cooler on low, and a wireless mic receiver. I just finished 5 hrs and and it still had 20% left.

I've been using this battery from K&F for a couple months and I've been really happy with the experience. The battery has really solid construction as well as a bright and reasonably large display. On the back you have the classic V-mount with charging pins that are typical for V-mounts. Truth be told, I think I charged it with these once and used USB-C the rest of the time. There is also a very small light, more on this later.

One side has a power button that if you tap once, you get a quick display of charge status. Pressing and holding will get you a more informative display for charging status that includes the ports and their output. as well as a very useful. When in this configuration, the little light will turn on and give you just enough light to do simple tasks in the dark.

On the other side is a D-tap port with a rubber cover and on the top are the remaining ports are along the top of the battery.

The battery really does deliver as a smaller sized, on the go option to keep your lower power gear running. Great for auxiliary lights and other random pieces of kit you run day to day. I was even able to power a motorized slider with the DC port. All in all, I'm really pleased with the battery and hope it can be cycled and last a long time. Well done!

Well built, works great ,last long, good quality , what more can I say other than I just bought 4 more. Worth every red penny.

Working great on my FX3 cinema setup. The form factor is great. 99Wh is perfect for travel on airplanes. In addition, the actual shape, being a near perfect rectangle makes it fit very nice along other rig components and also allows it to fit in padded bags and foam cases easily.

The outputs are numerous and have been working well for a variety of accessories. The screen on the back has better resolution than my first 2 cellphones hahaha. Seems like overkill but it's useful for long takes when estimating your battery life.

Best part is probably the metal build. This battery is heavier than it could be if it was plastic but it feels like a tank. Very robust.
No faults thus far