As far as VMount batteries go, I have a new winner for looks and function.

This is my fourth VMount battery and I am actually surprised by the little thoughts that have gone into the look and feel of it. From the fancy little animation of the LED screen, to the aluminium housing around the edges. This all screams of a premium product, which you do expect from K&F nowadays.

You get your regular outputs, USB, USB-C, DTap and a barrel output.

100W PD output is wonderful, normally these batteries will cap out at 65W.

I actually found the little torch light by mistake when I was playing with the power button. Just press and hold it and it'll fire up. Absolutely required in a dark studio when clamping your battery to the mount.

I couldn't live without V mount batteries these days, well I could but it would be much less pleasurable, and this example from K&F is up there with the best having a large capacity and a plethora of outputs.
Whilst my main use is to power cameras, monitors and studio lights - as seen here - via dummy batteries, this also makes an excellent emergency power bank and is capable of reviving everything up to and including a laptop.

I did receive this for free via the Amazon Vine program but will be ordering a second as I'm that impressed.

K&F Concept’s 99Wh V-Mount Battery with PD100W

The K&F Concept’s 99Wh V-mount battery is a versatile V-Mount battery with 6700mAh of capacity. It weights in just under 635grams. It’s a flexible battery offering charging dtap or usb-c charging. It takes advantage of high-power USB-C power sources, charging up at 16v/ 5a from my power bank for 80w of charging, from a wall socket the built-in screen suggested it was charging around 99w. Using USB-C it was charged in around 2 hours. This is a great advantage over older dtap only batteries – if you are around a high power dtap charger use it – but a good USB-C wall charger can potentially charge two batteries at once; and is much more compact than my dtap power brick. Using USB-C also needs less kit in my bag’ I always carry a few USB-C cables and most of my other kit charges up from usb-c too. K&F include a good 240w rated usb-c cable in the box.

Regardless of the charging source the screen shows a clear display of the state of the battery charge and lets you know which of the various outputs are discharging when its charged. When charging there is an accurate time estimate to charging being complete. When using a high-power source, the battery does get warm whilst charging.

Power output the flexibility continues; you can run use the vmount port and the BP ports will power your device happily. I have used it in a loop for the last few days running a large LED fill light for the last few days. The screen on the battery shows the drain as 70Watts (the panel of the light says it’s a 70w light, so the meter is accurate.) I found the VB99 lasted a little over 2 1/4 hours constant running on that light. The light runtime is on the higher end for my vmount– if you are shooting off grid this will keep a low power camera rig going for a long while.

If the battery is flat when you need it, you can use the light in an adhoc UPS mode charging and running at the same time; just make sure your input power is greater than the output. Running the light and charging from the same wall adaptor; it added an hour to the charge time which is a good compromise.

Besides the vmount port the battery gives you a 12-volt DC connector; a pair of USB-C’s and a usb-a. Total output is limited to 100watts. I could run the light and power a camera via a usb-c cable at the same time. The batteries usb sockets all sit behind a weather flap; that I found difficult to open with my trimmed nails.

When in use the screen is usually off; there is a button on the side that will let you check the status. You can long press that button to turn on a small light in the back of the battery which is useful for lining it up with a mount in low light; you do need to turn it off again – and the screen doesn’t warn you it’s on. It’s a great idea the UI should warn you it’s on; or it should power off when connected to a vmount.

The manual says the screen face is scratch resistant; time will tell on that. The surround of the battery is metal; which should help keep some heat down in charging; and especially surprising given the relatively low weight – it’s almost 150g lighter than my next lightest 99Wh vmount.
K&F have been on a roll with quality products recently; this vmount filter is another sign they are coming for the professional market.

Please see attached video review for unboxing and initial assessment. The product charged easily via USBc. I did not realize that this battery is designed for certain types of cameras - ultimately I found someone with access to that type of device and it worked flawlessly. It also charges other devices without issue and very quickly. No reservations recommending this product.

This battery is an absolute beast. It has several ports to run different accessories at the same time, and is perfect for all of my particular needs. As a matter of fact, if I'm being honest, it's almost too good for what I need. I'm not complaining though, because I know that I'll never have an issue with powering my lights, my video monitor, and even my camera with a dummy battery if I choose to. I use the D-tap for my camera monitor, while using both USB C's to run a light, and sometimes my camera. This is all done simultaneously, and easily monitorable from the display on the battery itself, where you can see the power output for each device. It has USB-C fast charging, and a pretty robust 6700 MHz capacity. It'll have no problem powering professional lighting equipment, professional video monitoring equipment, cameras, acting as a power bank if need be, and many other applications where power is needed. It's extremely versatile with a range of inputs, and nicely designed. The screen is color and easy to read, and gives you a great knowledge of your power drain. All in all, it's a fantastic V mount battery, and I would absolutely recommend it for professional videographers, and photographers. I usually find at least one or two bad things to say about a product, but I'm struggling to think of any in this case. It's an easy five stars.

The battery does what it's supposed to and charges devices that take usb-c, usb-a, d-tap, and 12v barrel connections. I really like the 240w cable they included (usb-c to usb-c) that includes a strap to keep it nice and tidy when not in use. I also like how there is a light on the back that you can turn on/off by holding down the power button for 3 seconds. I haven't seen this feature on a v-mount battery yet, so it's pretty neat to see them trying something new. The gun metal gray sides look pretty stellar as well and give the battery a nice look that's also different than the rest.

The only things I don't really fancy too much are the display readout and the main plug cover. The cover is a little difficult to get off of the plugs and then it just is in the way when you are trying to access the plugs beneath it. Perhaps this will get easier with use, but as of now it's a bit tricky. As far as the display goes, it feels outdated with large blocky text and doesn't display the readouts in real-time. I am glad it shows the voltage and wattage the port is using though.

All in all, this is a good battery, and I can recommend it.

For camera gear by the time, you add up all the devices, each with their own battery, all it takes is for one of them to run out of a charge and your filming can come to a halt. Enter the V-Mount battery and you get an easy to use all in one battery source that gives you an reading of how much charge you have left. Not to mention that you can have more than one V Mount battery, or several of them, thereby giving you unlimited filming time.
It has multiple types of ports which are versatile and support simultaneous power for multiple devices like DSLR cameras, camcorders, monitors, smartphones, wireless video transmitters, tablets, laptops, and more. With this kind of versatility, it will be an essential part of my video creations.
The first thing you want to do is charge it up to 100%. Batteries in storage last a lot longer if they are fully charged. For a camera you will need a V-Mount to attach it to which of course is one of the ways it makes this battery more convenient. Overall, highly recommended.

The K&F Concept 99Wh V-Mount Battery has been a solid addition to my photography gear. Its 99Wh capacity ensures that I have ample power for long shoots, and the PD100W USB-C fast charging feature is incredibly convenient for quickly recharging between sessions. The multiple output ports are a practical touch, allowing me to power various devices simultaneously. The TFT digital screen provides clear, real-time information on battery status, which is invaluable when managing power during complex shoots. Plus, the emergency light is a thoughtful extra that could come in handy in low-light situations. Overall, it's a reliable and versatile battery that's become a staple in my kit.

It doesn't seem to charge my cell phone any quicker than any other device, but it does charge it. The instructions are in an extremely small font, so they are hard to read. Also, there's little information about how to actually operate the battery (e.g., nothing on how to turn on the emergency light--hold the power button in for a while is the answer). The emergency light is pretty weak.

The display is good and you always know where you stand in terms of power and it doesn't seem to get hot while operating.

Had some issues hooking up a couple of lights to it, but it works well for a camera/monitor/etc backup to keep your devices running longer.