After trying them out for a few weeks, I have to say that the length is a little lower than the original ones.
The good thing about these batteries, unlike other non-original ones, is that with these you don't get the “non-original battery” message.
So for now Sony A7M4 are perfect for me.
We'll see how they age.
The good thing about these batteries, unlike other non-original ones, is that with these you don't get the “non-original battery” message.
So for now Sony A7M4 are perfect for me.
We'll see how they age.
03/01/2026
02/01/2026
I bought a Sony Alpha 7r5 last year, and I use the batteries for that. I think it's good to be able to charge them via USB-C as well. The performance is right for me. No problems so far!
28/12/2025
The downside: they last slightly less than the originals.
At least in my camera (a7 CII) it hasn't given me an error even once. They are charged either with their own USB-C or with a charger. This makes them super comfortable and very practical to carry.
At least in my camera (a7 CII) it hasn't given me an error even once. They are charged either with their own USB-C or with a charger. This makes them super comfortable and very practical to carry.
24/12/2025
I ordered two batteries (zwei) inside the box there is only one battery, although 2 are written on the package.
Update: the error was on the shipment made by Amazon, k&f support was super helpful and willing to send me the missing battery directly home.
Update: the error was on the shipment made by Amazon, k&f support was super helpful and willing to send me the missing battery directly home.
22/12/2025
Well recognized by camera (A1), charging directly via USB in the battery itself is very convenient
19/12/2025
Guys, if you are looking for a battery with higher performance than the originals, you know which to choose!
I was amazed at how long they lasted! Normally I have always used batteries from other competing brands and although they declare lifespans similar to the originals, they never reached a breakeven, but here the 2600mha are real and give you that extra peace of mind when you are out for events or anything else!
In addition, the extra bonus is the USB C connector that allows you to charge them with any charger, which is very convenient when you forget the original at home.
I was amazed at how long they lasted! Normally I have always used batteries from other competing brands and although they declare lifespans similar to the originals, they never reached a breakeven, but here the 2600mha are real and give you that extra peace of mind when you are out for events or anything else!
In addition, the extra bonus is the USB C connector that allows you to charge them with any charger, which is very convenient when you forget the original at home.
16/12/2025