So far these seem good value but I cannot yet comment on Longevity. I haven't run them into flatness yet as I prefer not to do that but in my limited use of them so far I haven't noticed any distinct difference between them and the original Canon's. They seem to charge fairly quickly from fairly well flat and all I can say is so far so good and I am totally happy with them.

K&F seems to have got this bang on. The price for two of these batteries VS one LP-E6NH from Canon is a hard choice, with the K&F being 1/4 the price per battery. That’s some humour.

After using the K&F for some time in my Canon R7, I wish I knew what I know now. These work with no issues in my R7 that I have seen yet. The camera recognizes the K&F battery and even provides a readout on how much power is remaining and no error messages have been displayed. I say so far, because maybe in 6 months this will be different? Unlikely, but since I haven’t been down the road of long term use with these yet, I will be objective here.

Otherwise, these in one way are better than the Canon branded batteries. They charge in the canon charger but also have usb-c plug in to charge them. That means, a power bank can do it, they can be charged in the car or as usual at home by the Canon charger or again usb. Pretty nice and this is the way it should be in 2024.

Why Canon keeps it so simple might be a secret (is it so hard to add a usb input?I will admit though that I believe Canon uses better cells inside their batteries even though I can’t confirm it. But I have the K&F’s as back up after I run through each Canon battery once. It’s nice to know I have backup power for my R7 and didn’t have to spend Canon prices to get it.

If these fail or show signs to stay away from them, I will update this review.

Updated June 9 2024

Still going strong. No issues. Really nice using these.

Recommended.

These batteries hold a longer charge

Great battery, I used it for an R6 camera and its durability was superior to the original. What I liked most was the way it charges. You connect a USB C cable directly to the battery and you don't have to take up space with an extra charger. An excellent battery.

These are a direct fit/replacement and confirmed operational for my cameras, Canon 5D M2 and 7D. These batteries came with a close to full charge. I put one in an original Canon charger, and the other battery I plugged into a USB charger, with the included USB-C cable that directly connects to a USB-C port on the back of the battery itself. This is such a cool feature to be able to charge these batteries with just a cable; very convenient!
So far so good, these seem to operate well and hold a charge comparable to Canon OEM batteries. The thing that I have experienced with other imitation brand batteries, is that their longevity isn’t there. So, I’ll have to give it a year or two and revisit the status of these batteries in comparison to the OEM batteries I have. At the price these sell for, and the option to charge them directly with a USB-C cable makes these batteries a definitive choice; highly recommended!

K&F Concept has the right idea with these batteries. Everything is moving to USB-C now. Everywhere you look, you will find lithium-ion and USB-C. This is a wonderful thing. No special charger. No special cable. You can charge these pretty much anywhere. If you can charge your phone - even iPhones will have USB-C going forward - you can charge these batteries. And as K&F Concept has shown, the addition of a USB-C connector need not add to the cost.

Speaking of cost, if you've purchased LP-E6 batteries for a Canon "pro" DSLR, you know how painful it is to shop OEM. At the current time, these batteries cost roughly one-third the cost and don't require a special charger. This should be a no-brainer.

My Canon 6D does not display any warnings about the battery when identifying it and had no issues with registering it for tracking its state of health.

I love the cleverness and convenience of a built-in USB-C port, and it never hurts to have more batteries on hand. What remains to be seen is how well these batteries will hold up over time. If cell and circuit quality is there, these should serve me well for years to come.

Never had an issue with these and my r7 actually reads these as real Canon batteries like others have said. A two pack is cheaper than a solo battery from Canon and I plan on replacing all of my batteries with these.

Charged great easy to use and lasts

I bought this as a back up power source for my Canon R5. Great value and works really well.

The batteries work fine in my EOS-R battery grip.

They allow for charging via the USB-C port on the side of the battery grip. So I never need to take the batteries out of the camera to charge them.