The direct charging feature is convenient. It allows me to charge multiple batteries at the same time.

I've tried several batteries from third-party manufacturers, all of them resulted in a blocking message from my Nikon Zf, not here!

I’m very happy with all aspects of this battery - capacity, length of charge and charging time. The USB C charging is ideal for me. With the voucher taking it down to a very competitive price it’s something I’d definitely recommend considering.

I would really like Nikon to come out with a charger that just goes around the end of the batter and plugs into USB, that way I would not have to carry their bulky charger with me. Until the day comes, this battery is a very good viable alternative. I don't have to carry around the anger and since I am already carrying USB chargers for the myself and the family, this is a no brainer.
The battery works great in my Camera. Not sure how many shots I get on a charge, will be comparing that over the next couple months and will update this when I do.

This battery has been a fantastic backup for my Nikon. The fast charging via USB-C has been a lifesaver during shoots when I need a quick recharge. I’ve noticed a significant improvement in capacity over the standard battery, which has extended my shooting sessions without needing to swap batteries as often. The compatibility with various Nikon models makes it versatile, and I appreciate the safety features that prevent overcharging and overheating. It’s become an essential part of my gear, especially for long, on-location shoots.

This battery has been a game-changer for my camera setup. The extended battery life allows me to shoot for much longer without worrying about recharging frequently. It charges quickly and holds the charge well, even during intensive use. The fit is perfect, and it integrates seamlessly with my camera, providing consistent power without any issues. While it’s a bit more expensive than generic options, the reliability and performance make it worth the investment. For anyone serious about photography, this battery is a must-have for ensuring you never miss a shot.

Having this battery on hand has been a lifesaver during long photography sessions. It charges rapidly with a USB-C connection and provides enough power to keep my camera going for extended periods. The battery holds its charge well, offering peace of mind during important shoots. It’s become an essential part of my gear, ensuring I’m always ready to capture the moment without worrying about running out of power.

This type of battery is probably one of my favorite newer camera accessory tech that came out in the last few years. Now that a lot of cameras don't come with a separate battery charger, since they can change in-camera, these are a perfect way to charge a spare at the same time be it at home through a dedicated charger or computer, or on the go with a laptop or power bank. They of course still charge in a dedicated battery charger.

Now back to this specific K&F version. It charges at around 10W so its among the faster charging batteries of this type. The cheaper alternatives charge at 5W speeds, so takes significantly longer to top off. It is also the nicest looking battery in my opinion; the brown and the blue ones are more eye catching for better or for worse but these look great. Honestly I don't really care about the color too much but manufacturers like to flex it as a selling point so... And finally, although it doesn't quite last as long as the original batteries these do manage to last a more than adequate amount of time. Knowing it is from K&F you also do get the peace of mind of a quality battery, unlike some of the weird, random branded traditionally charging third party batteries that are super inexpensive.

Now for my one complaint with this battery, it would be the location of the charging port. Most of the other USB-C charging batteries for other camera brands have the charging port at one of the extremities, usually on the opposite end of the actual pins of the battery. This one is on the effectively bottom side of the battery. It still works but I feel it is slightly less convenient sometimes... this is purely a matter of preference though, and considering SmallRig's version also charges at the same location this might be a limitation to the internal structure of the EN-EL15C.

Overall, this is an excellent choice for USB-C rechargeable batteries for your Nikon.

The battery has a high capacity of 2600mAh, which provides a long-lasting charge, perfect for my extended photography sessions and video shoots. I never have to worry about running out of power during important moments.

The USB Type-C charging port is incredibly convenient—it charges fully in just 2.5 hours. The charging indicator is very helpful; the red light shows it's charging, and it turns green when fully charged. It makes it easy to know when the battery is ready to go.

I also love the multiple charging options. I can charge it using a power bank, car charger, or even Nikon's original chargers, making it versatile for both home and travel. The built-in protection system gives me peace of mind against overcharging, overheating, and short circuits.

Second time getting a K&F Concept battery for my cameras. This time I picked up EN-EL15C battery. No issues with my Nikon Z8, Z6 or Z7. Works just fine without any error messages. Cheaper option when buying extra batteries for the cameras. You are able to charge them with your regular charger or via USB-C which comes in handy when you already have several other products that are using USB-C like your cell phone & headphone. I am able to use this battery without issues when shooting 20 fps on my Nikon Z8. If you are in the market for something that cost less and works just as good as the OEM, this is one does it.