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.

These work as advertised. They show up as “NH” batteries in an R5, so they unlock the power features including USB charging in the case. The charger also works well but only uses conventional power even when connected to a PD power supply. So don't expect fast loading.

So far so good. Just got them, and they charged up great. Able to shoot in H+ Mode on the R5. Will have to see about battery life. A good deal at 2 batteries and a dual charger for less than the cost of a Canon battery. Wish it can woth an outlet adapter though.

I have a lot of generic batteries and some fit well and some don't. Some were DOA and others were the last of my original Canon batteries. So far these feel like a winner. They charge quickly and hold a good charge.

To be honest, I dislike The En-EL14 batteries for Nikon cameras as much as i do the NP-Fw50 batteries for Sony. These batteries have always had terrible battery life in my use cases. So having multiple batteries was always a must, to ensure that i was never up a creek without a paddle when i needed it most.

K&F has always done a good job with their series of batteries. I have tested their batteries across multiple camera brands and i have never had any issues with any of them. The only thing that can be said is that these do not give you the full battery life that the OEM will offer but the reduced battery life to cost savings over the OEM is worth it in most cases for me.

I used these batteries in my Nikon D5600 and D3500. I noticed more of a difference in performance in my D5600 battery life when compared to OEM than with my D3500. I took both cameras out with me while i walked around getting shots of nature for the day. It was about 95 degrees that day so i expected the batteries to die much faster, which did not happen. The batteries held up well in the higher temps and gave me a sufficient amount of shots. In most cases, i would never take over 300 shots when birding or anything of that nature but did on both cameras just to better access the batteries.

The biggest area that i noticed a difference in was when i left the batteries fully charged in the camera bodies and coming back 2 days later to one at 52% and the other at 39% when i had never seen the at much of a power drain on my OEM batteries when i left them in the body. Not sure why that happened but i know now to never leave those batteries in the body if i want them fully charged and ready to go.

Overall these are good batteries that fall slightly short of the OEM. It is also hard to find new OEM batteries, so amongst the deep sea of third party batteries, these are some of the better ones i have used.

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.

Very pleased with these batteries that works great in my aging Nikon D5100 DSLR that can be picky about aftermarket batteries.

Pleased that the charger accepts USB-C charging and has big clear red / green status leds for each battery.

I’ve tried a few products from K&F concept and have been impressed with them all.

5/5 recommended