26/06/2025
Really nothing to complain about except that it does the job perfectly and I don't see any difference with the official ones.
22/06/2025
The capacity seems comparable to that of the original battery. It's also 100% compatible with the A7M4 with the latest firmware. I'm very satisfied!
21/06/2025
I haven't been disappointed by K&F products yet. I'm completely satisfied with them, too. They perform their function reliably, and the quality of the materials is impressive.
13/06/2025
For me, there's no difference from the original. I've been using them for a year without any problems. The camera recognizes them without any problems.
04/06/2025
I don't know the capacity of the batteries, but it's practically the same as the original, which has an agradable sorpresa for me
02/06/2025
I've been a photographer for over 10 years and have used almost every manufacturer on the market. And as is my custom, I use the original battery for the respective system once and otherwise only third-party batteries. This time, however, is the first time I've used batteries from K&F Concept and yes, what can I say? The batteries are great! I can easily get through the entire day with my Sony A7 IV and both batteries (about 8 hours straight) and still have some charge left. In my opinion, these batteries are in no way inferior to the original from Sony and I can definitely recommend them. I particularly like the fact that you can charge both batteries at the same time, which is often not the case with other third-party manufacturers.
31/05/2025
29/05/2025