I recently bought a used Nikon D3300 for use with some AF-P wide angle and telephoto zoom lenses as my older DSLR D7000 will not work with any of these lenses. The OEM battery that came with the D3300 is EN-EL14a and the battery is showing its age. So I ordered these extra batteries and charger set. I really don't need two batteries as I don't use this camera often as I use my other two mirrorless FF and APS-C cameras. But those extra batteries come in handy when I take the camera on vacation and don't have to worry about charging for days.

I have purchased a number of K&F Concept products over the years and they have all been of excellent quality. Those batteries and charger also look great. It came with a charger, two batteries and a generous 3ft charging cable with USB-A and USB-C end connectors. Note, however, that a wall charger is not included in the box. The charger has USB-C and Micro-USB input ports. The batteries were delivered fully charged. The charger works fine, but it has yet to be determined how long it takes to charge either or both dead batteries.

Just like the OEM battery, these batteries can be easily inserted and removed from the camera. Works as expected. These batteries should last a while. One day I'll update this review for the number of shots I get on each full charge. I am happy with this set and given the past history of the products I have owned from K&F Concept I would definitely recommend this set.

These batteries work as well as any others I've tried. The charger accepts both USB-C and micro USB cables as power sources. All in all, I'm satisfied.

I recently invested in the K&F Concept Battery Charger Set as a passionate Sony camera user. After using this charger set extensively, I can confidently say it has become an indispensable accessory in my camera gear collection. Including a dual-slot charger in this set is a standout feature. It allows me to charge two batteries simultaneously, saving me valuable time when preparing for a photo shoot. Additionally, I have found the charging performance of this set to be reliable and efficient. The charger quickly replenishes the battery's power without any issues. The LED indicators on the charger display the charging progress, letting me know when the batteries are fully changed and ready to go. The compact and lightweight design of the charger set makes it highly portable and travel-friendly. It easily fits into my camera bag without taking up much space. Overall, I am happy with this battery charger!

The set of a USB charger with 2 batteries

Tried these batteries on the first a7 and it worked great. Didn't have any error messages show up or anything. I love the charger has the usbc charger because everything now is using usbc and plus usbc charges faster. Battery life seems constant but haven't gone too crazy with it yet.

Perfect fit for SONY ZV-E10 and appears to be at least the equivalent of the OEM battery included with the camera. Charges easily and holds up its charge at least as long as the battery provided with the camera. There are some slight differences but fits the battery compartment in the ZV-E10 to a T. For the low purchase price, you get two batteries and a charger. K&F is a quality brand. Much better value than buying the SONY OEM part.

I have needed to get a new battery for my venerable Sony A7RII for a while. At this price point I figured it made perfect sense to go ahead and get 2 batteries and a charger. I have never used K&N equipment before, but so far it looks like a good choice.

After charging the batteries I went out over a couple of days to shoot a Cross Country running event. I did some light still shooting for a couple of hours each morning using 1 battery each morning to make sure they both worked. Both had charge left after their respective morning shoots.

The charger is very lightweight and has both a USB-C and Micro USB slot. Typically I like wall chargers, but when I travel I like this type of charger. The reason being often times in older parts of the world, basically anywhere but the US, where electricity was retrofit into structures the power plugs are in odd spots and a cable makes it easier to plug into the my power adapter and sit the charger somewhere convenient. The fact it has the C and Micro slot is nice in case my cord and backup cord dies and I have to get a replacement.

Time will tell as far as longevity, but so far this has been a great purchase.

This K&F Concept USB rechargeable battery and charger is just what you need when you take a lot of pictures. (And it comes with two batteries.)

Today we need batteries to power many of the things we use, and as expensive as they are to buy, we often look for ways to save money without sacrificing quality. With the K&F Concept name, you can be sure that you are getting the best quality while not spending a lot of money.

This charger is for Nikon cameras that use the EN-EL14 model battery. With the USB charging station with 2 battery slots, you can charge both batteries at the same time. The charger can use either a USB-C cable (included) or a micro-USB cable (not included) to charge the batteries.

A red light indicates that the batteries are charging. When it goes out, the batteries are fully charged. (Both batteries charged in about an hour and a half.)

I'm using this with a Nikon D5600 (make sure what model your camera is) and it works perfectly. It's recognized by the camera (some aftermarket batteries won't work) and since each battery is rated at 1050mAh, you're sure to have plenty of backup power on hand.

These batteries and charger work just fine with the batteries for my old Sony A6000. I haven't tested them, but they seem to work just as long as the OEM battery that came with the camera -- albeit the original battery is a few years old. The form factor of the charger is relatively small, which is great for travel. It comes with a nice cord; however, like most electronics nowadays, it does not come with the power brick to plug into a wall socket. I've purchased a lot of gear from the K & F brand, and I've always been satisfied with the filters and accessories. These batteries are another great purchase.

Tested with Sony ZV-E10 camera.

OEM Sony battery lasted 1hr 5mins while recording in 4k. K&F battery lasted 1hr 20mins.

This is an excellent value! ($30 for 2 batteries + charger > $60 for 1 Sony battery)