Whert his money.

I bought it to have two more spare batteries, so they already work like the original in my Canon R, I can charge the original battery in this charger and vice versa. Everything OK.

I've done a little comparison of some different batteries and the R5. Not scientific at all but some stats for battery life etc as I use the camera. The camera seems happy with the K&F Concept batteries and does not give an error about non-genuine batteries (unlike my 5DsR).
Right a bit of background of how the R5 uses a battery and its frame rate. If you set the camera to high speed continuous+ (green H+ icon) it has 3 modes - A, B and C which are dependant on how much charge is in the battery. Mode A (green H+) can achieve up to 12fps, mode B (white H+) can achieve up to 9.2fps and mode C (blinking white H+) can achieve 6.8 fps.
As a battery runs down the frame rate will move to the next lowest mode at certain percentages of battery power that's left. This is where I've tried to find out at what point different batteries change mode.
Now the numbers.

Canon LP-E6N battery (2+ years old) - Mode A works till the battery is at 46% (282 shots), Mode B then continues down to at least 5% (total 431 shots) I then had to change battery. Never reached Mode C.

Canon LP-E6NH (1 month old) - Mode A works till the battery is at 38% (399 shots), Mode B then continues down to at least 5% (total 462 shots) I then had to change the battery. Never reached Mode C.

K&F Concept LP-E6NH (2 weeks old) - Mode A works till the battery is at 75% (150 shots), Mode B then continues down to at least 5% (total 420 shots) I then had to change the battery. Never reached Mode C.

Obviously the genuine Canon NH battery is best but most expensive. The K&F Concept has less overall shots than old Canon N batteries but not by much and this test was all just based on one use of each battery. They may even out a bit more when averaged.

Anyway, if you need 12fps for the longest time then you have to get the genuine Canon NH battery. If 12fps for the first quarter and then 9fps for the rest of the battery is good enough then the K&F Concept batteries are awesome value for money. Personally I don't have a problem with the slightly reduced fps compared to spending £150 on a single Canon battery.
Of course if you go on to electronic shutter then you get 20fps at any battery percentage.
Hope that helps.

K&F supplies a complete set for Canon.

In my case for the EOS R.

Compact and comprehensive, the set comes in solid packaging.

The battery, charger and cable make a high-quality impression.

Charging time is close to the original, you need a little longer, but it is due to the capacity.

The batteries are recognized without any problems and the camera works as it should.

Can recommend this set.

Excellent package of batteries and charger for my Canon R5. Works without any fuss and as it’s USB I can charge it from the car or Campervan.

⭐⭐⭐⭐
This set of two NP-FZ100 battery packs and a dual charger comes with a Micro-USB-USB-A cable.
The charger is made of plastic and is well made and does not look high quality. It has two built-in LEDs, which light up green and red and provide very superficial information about the charging status.
On one side are a micro-USB and a USB-C port.
Charging is self-explanatory by connecting the included cable or your own USB-C cable and then plugging it into a USB power supply or power bank. Then the two batteries in and it charges.
The batteries are well made and work better than the charger. They fit easily into a Sony camera and are similar in performance to the dozens of other third-party batteries.
Compared to Sony batteries, they are not as good, but they are also significantly cheaper.
With the charger you can charge them reliably, but slowly. With an original from Sony it is synonymous.
And overall it's a good set, even if the charger isn't great. Reasonably priced and recommended!
⭐⭐⭐⭐

My main camera is a Canon 5dmkiv and I'm a big fan of backup batteries (the camera is battery hungry!) but the OEMs are extremely expensive. My current three Canon batteries are aging, I needed something new for my camera.

I have several Edelkrone motion control products that are also battery hungry and are powered by the LP-E6NH. I order third party batteries for the Edelkrone gear and that was my original intention of trying them out.

These are closer to Canon's surface than any other third party. They charge well with the included charger or Canon's. (And the included charger does a great job with the OEMs, too.)

My 5div recognized these batteries and displayed them at 100% charge and three bars of charge power (max), allows me to register them - gives the same information I get from the OEM. After checking that, I decided to actually use them to take pictures. For the first time I felt safe doing that with this camera.

I'm having a hard time doing a scientific comparison of battery life. I've used each of the K&F batteries in the camera until they were pretty depleted and they seemed to last about the same as my Canon's, maybe a little longer as those age.

So basically these are high quality alternatives to OEM products at a more attractive price point while still offering excellent performance. I would definitely order more.

The batteries supplied have a good life comparable to Canon originals.

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.

Using these in a 7d2 and at the moment they work just as well as Canon originals