I recently purchased this product and I am thoroughly impressed. Firstly, the quality of the product itself is remarkable. It meets and exceeds my expectations in every aspect, demonstrating the high standards of manufacturing and attention to detail.

What truly sets this experience apart, however, is the exceptional level of communication from the seller. Their responsiveness and clear, courteous communication made this purchase seamless and enjoyable. It’s evident that they place a high priority on customer satisfaction, and they go above and beyond to ensure that their customers are happy with their purchase.

I would like to extend a heartfelt thank you to the seller for not only providing a great product but also for showing genuine care and commitment to customer satisfaction. It’s a refreshing and highly appreciated approach in today’s marketplace. I highly recommend this product and commend the seller for their excellent service.

Different styles of music are similar to originals

I use this kit with my Sony A7iv camera. While I haven’t counted the number of shots, these batteries seem to hold a good charge.

Batteries as they are, are good for first few uses. What I mostly appreciate is that I don't get any warning message about 3rd party batteries where with many others I do get (A73 & A7S3). Charger is a little cheap one, it would be even better to lower the price and remove the charger.

Product review: K&F CONCEPT NP-FZ100 camera battery charger with USB dual slot, 2-pack 2080mAh replacement battery set, compatible for Sony A9 A7III A7RIII A7RIV, Alpha 9S, A9S, Sony A7R3, Sony A7R4 digital cameras Dimensions: 16.7 x 10.9 x 2.9 cm Weight: 0.27 kilograms Two batteries can be charged at the same time, and the charger can only charge one battery. The charger can be operated via a micro USB cable as well as via USB C and can therefore be connected to a cell phone or laptop as well as to a car charger or even a power bank. The included batteries are characterized by the fact that they are easily recognized by the original charger, which means that they support the original charger chipset. Deficiencies: In fact, the actual value that the camera reads is not the actual charge percentage of the battery. This means that the battery is fully charged via the included charger, then the green light appears. After that, insert it into the camera and you will get a charge percentage of about 85%. If you use the original charger, the battery will be recognized, and after charging, fully charge the battery and install it in the camera. We note that the camera reads the battery charge percentage of 93%. However, if we compare the quality with the price, we see that this defect is not significant. I give this product 4 stars from my point of view Thank you for reading my review, I hope it was helpful to you.

As we all know, you can never have enough batteries, so I ordered the set from K&F CONCEPT. It comes with a dual charger and 2 NP-FZ100 batteries. The charger can be operated with a USB-C or micro-USB cable. However, only a micro-USB cable is included in the delivery. Why the manufacturer doesn't include a more modern USB-C cable instead of the micro-USB cable remains a mystery to me. Two batteries can be charged at the same time. However, the charging current is split between both batteries and the charging process takes longer than with one battery. Otherwise, the charger is very spartan. You won't find an informative LCD display for the charge level here. There is only one LED per charging slot, which lights up either green or red. There are many much more convenient chargers in the same price segment. The batteries, on the other hand, make a better impression than the charger and are on a par with the best third-party batteries in terms of capacity. The batteries are also accepted by my Sony cameras without any problems and without any error messages. The camera's battery life is quite similar to that of the original Sony batteries. Overall, the K&F CONCEPT set is worth recommending, even if I don't think the charger is very good. However, the batteries have a good capacity. I give the set a solid 4 stars.

This NP-FZ100 battery charger from K&F CONCEPT is a real miracle of performance. It starts with the fact that it works all over the world, regardless of the current supply. Because it charges via USB. So it can be powered by any USB power supply, from a laptop, a desktop computer, on the go via a car charger, a power bank and whatever else I have to hand. It has never let me down. The charger has two alternative connections: Micro-USB (that's the narrow, angled one) and Type-C, so no matter which cable I have to hand, you'll never be left empty-handed with this thing. But you will be left with a rather meaningless progress indicator. If a charger for AA batteries that costs just 20 euros can offer a precise display of the amps and charge level in real time, I don't see why you have to settle for a red/green light for the batteries. For the price, it should be OK. The manufacturer promises every conceivable protection - but no protection against moisture, which I actually find a useful feature (but probably not for the low price). The charger can charge either one or two batteries at the same time. My version (NP-FZ100 camera battery charger) comes with two powerful batteries (81.99 EUR). I use these camera batteries with my Sony Alpha 7 III (A7RIII). They also work with the Sony A9, A7III, A7RIV, Alpha 9S, A9S, Sony A7R3 and Sony A7R4 digital cameras. This offers a certain degree of investment security. If you change your Sony camera and choose a compatible model, you can continue to use the charger and batteries. I really like that. Since I often photograph time-critical events, every minute counts for me. Sometimes I have to slightly enhance the photos to meet the customer's workflow requirements (a certain resolution, a certain image format, conversion to an ICC profile, blurring unwanted details, and the like). Often this can even be done in batch processing. I'm currently using my ASUS Zenbook Pro Duo laptop with Adobe Creative Cloud under Windows 11, because the built-in NVIDIA GeForce RTX 3060 graphics card has enough power for fast batch image editing - even under extreme time pressure. And with this charger, I don't even need a power outlet (and certainly not a second one!); I can simply plug the charger into the ZenBook and that way I always have freshly charged camera batteries with me. You just have to get a powerful cable yourself. I received this set from Amazon as part of a product test. This has no influence on the rating. I am judging the test product as if I had paid for it out of my own pocket at the current price of just under 82 euros (81.99 euros, to be exact).

Both batteries are fully compatible with my A6600. Incidentally, all other batteries from third-party manufacturers (Blumax etc.) are also compatible. Apparently the problem with the incorrect battery display etc. only affects the 7 series of Sony cameras. In my opinion, the charger is not that great. I will therefore not use it, but only connected it for testing. Firstly, there is the extremely long charging time. I have a four-way charger here that can charge in about half the time. Secondly, the fact that there is actually no display is annoying. Either a red LED (charging) or a green LED (charged). That is not enough for me, especially with camera batteries. I need a relatively precise capacity display. So I want to know whether the battery still has 40, 70 or 80% power left. You can forget about that here. In this case, the only option would be to put all the batteries into the camera individually and read the values there. Annoying. Hence 4 stars.