I needed a usb charger for my camera batteries, to use in my car. This worked very well and charging two batteries at once was very quick and very useful.

I had an upcoming project where I needed a few more batteries but didn't want to spend £300 for originals. I took a risk and brought these and they are amazing! To my surprise they last just as long as my originals on my Canon R5. I wouldn't hesitate to buy them again and recommend them to others.

For the price these are amazing.

The EOS R5 recognises them as genuine batteries, even allowing the H+ mode to be used.
Shows two different serial numbers.
From the short time I've used them so far they seem to last just as long as the OEM battery.
No problems at all.

I bought these for my new Eos R camera. I got an error message on the Eos R with other third-party batteries that work without any problems in my Canon 6D, so though I'd try these as they have the R listed as compatible. They work fine in the R, no error messages so all good thus far. K&F Concept generally has good quality products. I will have to wait and see how long they last, but so far so good. I will update if I have any problems.

They also charged with my old Canon charger, which is good since the USB cord attached to the K&F Concept charger is somewhat short and I don't have any outlets that would work without setting up some sort of support so the charger with batteries loaded doesn't hang from the wall. Same with my computer USB ports.

Lasted longer than my Canon batteries.

Purchased for Canon EOS 5D Mark IV, well made and durable batteries. They are recognized by the SLR and can be recorded in the battery menu without problems. For simultaneous charging of batteries be careful when using a correct power supply (not included), in fact, the manufacturer indicates in the product description the minimum values for proper use , otherwise it will not work.

I recently bought a used Nikon D3300 for use with some AF-P wide angle and telephoto zoom lenses as my older DSLR D7000 will not work with any of these lenses. The OEM battery that came with the D3300 is EN-EL14a and the battery is showing its age. So I ordered these extra batteries and charger set. I really don't need two batteries as I don't use this camera often as I use my other two mirrorless FF and APS-C cameras. But those extra batteries come in handy when I take the camera on vacation and don't have to worry about charging for days.

I have purchased a number of K&F Concept products over the years and they have all been of excellent quality. Those batteries and charger also look great. It came with a charger, two batteries and a generous 3ft charging cable with USB-A and USB-C end connectors. Note, however, that a wall charger is not included in the box. The charger has USB-C and Micro-USB input ports. The batteries were delivered fully charged. The charger works fine, but it has yet to be determined how long it takes to charge either or both dead batteries.

Just like the OEM battery, these batteries can be easily inserted and removed from the camera. Works as expected. These batteries should last a while. One day I'll update this review for the number of shots I get on each full charge. I am happy with this set and given the past history of the products I have owned from K&F Concept I would definitely recommend this set.

The set of a USB charger with 2 batteries

This K&F Concept USB rechargeable battery and charger is just what you need when you take a lot of pictures. (And it comes with two batteries.)

Today we need batteries to power many of the things we use, and as expensive as they are to buy, we often look for ways to save money without sacrificing quality. With the K&F Concept name, you can be sure that you are getting the best quality while not spending a lot of money.

This charger is for Nikon cameras that use the EN-EL14 model battery. With the USB charging station with 2 battery slots, you can charge both batteries at the same time. The charger can use either a USB-C cable (included) or a micro-USB cable (not included) to charge the batteries.

A red light indicates that the batteries are charging. When it goes out, the batteries are fully charged. (Both batteries charged in about an hour and a half.)

I'm using this with a Nikon D5600 (make sure what model your camera is) and it works perfectly. It's recognized by the camera (some aftermarket batteries won't work) and since each battery is rated at 1050mAh, you're sure to have plenty of backup power on hand.

Also works for charging older batteries. When I saw this article, I had concerns about compatibility. After testing it with the batteries that came with it and my older battery, I can't tell any difference. I love that there are separate gauges for both batteries. I was always afraid of taking my charger on vacation and then losing it. Now I have a spare. I can take this charger with me and leave my original charger at home. And I can now have one battery in the camera, one in my bag for backup, and one for charging at home/in the room. Satisfied customer.