The batteries charge quickly when connected to the appropriate power adapter. It doesn't get very warm either. So far, it's working great!
30/03/2026
The K&F CONCEPT NP-FZ100 camera battery charger was delivered quickly.
It is packaged neatly and appears to be of high quality.
However, the item description on the product page is a bit muddled and confusing. You have to look carefully at which battery you really need.
But the batteries are no worse than the originals from Sony.
They load quickly and reliably.
Of course, not much can be said about the longevity, but so far I'm really satisfied.
It is packaged neatly and appears to be of high quality.
However, the item description on the product page is a bit muddled and confusing. You have to look carefully at which battery you really need.
But the batteries are no worse than the originals from Sony.
They load quickly and reliably.
Of course, not much can be said about the longevity, but so far I'm really satisfied.
29/03/2026
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.
28/03/2026
The K&F CONCEPT NP-FZ100 work without any problems in my Sony A7R IV. There are no warning messages or anything like that either.
Since I own several replica batteries, I started measuring the capacity of these. I was able to determine 1911 mAh here, which is a "medium" capacity for a replica battery. In my measurements, Sony's own battery has a capacity of 2256 mAh, which is around 18% more. Considering the price difference, totally okay!
The included charger is also very compact and works well. While this is very simple, it is also light and small, good for travel and light luggage.
Since I own several replica batteries, I started measuring the capacity of these. I was able to determine 1911 mAh here, which is a "medium" capacity for a replica battery. In my measurements, Sony's own battery has a capacity of 2256 mAh, which is around 18% more. Considering the price difference, totally okay!
The included charger is also very compact and works well. While this is very simple, it is also light and small, good for travel and light luggage.
26/03/2026
Just as good as OEM batteries.
As we all know, third party camera batteries can be a bit controversial as some batteries are enlarged or just fail. OEM batteries are more known for being very reliable and punctual. However, this comes at a much higher cost.
I would say these do the job and only time will tell how good they are for long term use. So far I find them excellent. This is convenient as they can be charged from a wall charger, car charger or external power bank.
I can only recommend these batteries.
As we all know, third party camera batteries can be a bit controversial as some batteries are enlarged or just fail. OEM batteries are more known for being very reliable and punctual. However, this comes at a much higher cost.
I would say these do the job and only time will tell how good they are for long term use. So far I find them excellent. This is convenient as they can be charged from a wall charger, car charger or external power bank.
I can only recommend these batteries.
24/03/2026
The batteries work like the OEM batteries in the H2s and X-T4. They can be charged in the cameras, which is great. The charger has a USB-C connector. The combination of these two features guarantees that you can charge these batteries wherever you can charge your phone. Great for travel. From a usability point of view, I don't feel the differences between these and the OEM devices. They work great in my Fuji cameras.
20/03/2026
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.
19/03/2026
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
17/03/2026
The batteries were delivered quickly. The battery level indicator in percent works perfectly on the Sony A7 M4.
16/03/2026