It takes a long time to charge but holds the charge well. Used on a Sony fx6

Does the job. Ultimately it's just a battery, but it's very well made and offers very good value for money. Appears to meet the stated specification. The build quality suggests that longevity is not an issue. You will not regret the choice.

very versatile battery. Great small size and easy to use with multiple connection options. The screen is small. Lightweight at 1.2 pounds.

Here you get a powerful V-mount battery. You should be able to operate pretty much anything with the output voltage. Unfortunately I still have a problem with my LED lamp. But that's not because of the battery. After all, I can now operate the LED light with the battery up to 80% brightness. I need to get a different cable. We sometimes had an output power of 15.9V but my light just doesn't like it (but it's a special case). In my opinion, it can actually provide the 16.8V shown on the product photos. With USB-C and the right cable, 20V at 3.25A is achievable. Otherwise, the photo camera and video camera are all operated without any problems. The battery can be charged very easily via the various power connections. The easiest way, of course, is via USB C. But here too - you need a smart power supply and cable. Otherwise it won't load fast enough! Alternatively, there are charging plates for V-mount batteries. Here you can get the electricity you need quickly enough. The V-Mount can also be used as a power bank for mobile phones etc. But that's only on the side. It is mainly used for video cameras and there are LED lights in which you can plug your V-mount battery directly. Of course I can't say anything about the duration yet, but for this price it should still be of good quality. If something were negative, I would write this as an update in my review. The price is generally steep, but you get a powerful battery. 6700mAh cannot be dismissed out of hand and that simply costs money. The 20V with 3.25A more justify the price, which is currently around EUR 319 (12/2022). There are also a lot of connections available. Not all V-Mount batteries have that either. The LED display is of course another nice feature, but not absolutely necessary. Still very nice.

This V-mount battery is quite heavy and definitely not suitable for people with weak wrists when used as a camera charger. However, it can also be used to charge other devices. It can be charged super quickly, the phone recognizes it as a super fast charger - if a fast charging cable is also used. Each port can be used to charge other devices, but the battery itself is also charged this way. Each port is covered with a rubber or silicone cover that snaps into the ports. I imagine to prevent dust as I don't want to use this in the rain. No charging cable is included in delivery.

Excellent product and brand known for the quality of their customer service.

PROS: • High capacity (99Wh) • Compatible with V-mount accessories • Durable build quality • LED indicator for battery life CONS: • The charging port cover may come loose over time. I recently purchased the K&F Concept 99Wh V battery holder and I have to say I am impressed with its performance. This battery has a high capacity of 99Wh, which means it can last for hours without needing to be charged. I have used it with various V-mount accessories and have not been disappointed so far. The workmanship quality of the K&F Concept 99wh V-Mount battery is also impressive. It is made of high quality materials that can withstand rough handling, which is great for filming on the go. A nice touch is also the LED battery level indicator, which shows me how much energy is left in the battery. However, the cover of the charging port can be a bit annoying. It tends to come loose over time, which can make it difficult to protect your charging port from dust and dirt. Despite this minor issue, I would highly recommend the K&F Concept 99Wh V-Mount Battery to anyone who needs a reliable, high-capacity battery for their V-Mount accessories. It's a solid investment that's worth the price.

That's pretty impressive. It is well made, robust and very compact for the power it can deliver and the way in which it can deliver it. It looks neat, but this cleanliness comes at a price as the screen is tiny and very difficult to read, especially at first glance. The information displayed is also the bare minimum and a few “nice to haves” are definitely missing. This is ideal for projects that take a while and gives you the peace of mind to focus on your work without having to constantly check the battery status. It is advertised for use with a camcorder camera, but has many more uses including phones, tablets, cameras, flashlights, lamps, laptops... and is an excellent addition. The battery has a V mount and is easy to attach. It has a variety of ports including USB-A, USB-C, D-TAP, 8V DC and 12V DC, all of which have dust covers. The lettering on the ports is tiny and difficult to see, especially in low light. It has an intelligent BMS chip, which means it can charge multiple devices with different needs at the same time, and that's pretty convenient. It also supports high-performance USB-C bi-directional power delivery up to 65W. It will be worth it for some people who need this standard equipment on a daily basis, but for a general amateur this is more of a nice touch than a need, and I am would spend my money elsewhere.

This battery is brilliant. It powered a Blackmagic Pocket 6K for over 12 hours, shooting a mix of 6K 24 and 50. I finished the day on an 18% charge. game changer. No more box loads of NPF batteries

Hello, the K&F Concept VB99 Mini V Mount battery with 6700mAh (99Wh) and OLED screen is very well made and makes a great impression visually and haptically. The battery has sufficient connection options and does not necessarily have to be attached via the V-mount. I tested it with a video light and as a power supply for my EOS-R5 and could not find any problems, only the price seems a bit high to me and so I give it a good 4 Stars."