K&F Concept NP-FZ100 Battery and Charger for Sony A7iii Battery Compatible with Sony FX3, ZV-E1, Alpha A7iii, A7IV, A7RIII, A9, A6600, A7R IV (2 Pack 2280mAh Lithium-ion Batteries)

I got these in a very secure package. I opened the packing and found a charger Almost the same as the original fuji charger and the batteries are very durable. So far they hold a good life of shooting. I would say I went out yesterday and spent about 6 hours in the field and the battery lasted. it was not constant use, However it was used pretty much for shooting and BTS 4k video( which uses up battery fast) So far so good. I recommend these over any 3rd party battery.

A good value third party charger. Small and neat, decent build quality. Charging time good, does exactly what its meant to do.

These 3rd party batteries are almost like the original that came with my X-T5. Out of the box, they were already 75% charge. Nice.

Physically, they are identical except for one thing, as far as I can tell. The ends of these batteries are not completely flat. If you place one on its end, you can rock it back and forth. About a third of the ends has a slight bevel. Nonetheless, these batteries go in and out of the camera without any issues. Another oddity is that the orange covers can only snap into place in one orientation. And the reason I find this odd is because the covers have a battery shape cutout that you can use to identify whether the battery is charged or not by the orientation the cover is attached. These covers don’t fit the original Fuji battery, because its ends aren’t beveled.

Weight wise, original=80g, these=78g. Close enough.

Electrically, these batteries seem to perform the same as the original, despite the 0.2V higher output voltage and 0.2Wh higher capacity specs. They don’t generate more heat nor have any side effects, as far as I can tell. The X-T5 was even able to read the age of these batteries (yes, as new.)

Unscientific methods show that the discharge and charge times between these and the original are roughly the same. Using the included cradle and the 5V,3A AC adapter that came with my X-T5, charging a single battery from near 0% to 100% took about roughly 4 hours. The cradle regulates the power output to 8.4V, 700mA for one battery and 8.4V, 500mA for two batteries. K&F specs an AC adapter capable of at least 5V, 2.1A , and using a more powerful adapter probably isn’t going to help with charge times.

Each of these batteries (at the time of this review) is about 1/3 the price of the Fuji’s, which given how they perform, is a great deal. I can’t tell yet how they perform in the long term, but given the price, I don’t think I can complain regardless.

A very good product. I am very pleased with this purchase.

The is a great value for the money if you own a Nikon Camera: I have owned several Nikon Cameras and one of the biggest issues I have always had is the charger going bad! This charger was one of the best replacements I have every purchased!

Quality: The build quality is pretty good: The plastic feel is somewhat on the light weight side, but it feels sturdy enough to endure constant transport and on the go use!

Performance: The charging performance is okay compared to the original Nikon Charger. This charger takes about 90 minutes to 2 hours to fully charge both batteries! The Original Nikon Charger took about an hour to fully charge. Not a deal breaker for me.

Battery Life: The battery life is really good for these to be after market batteries! I was able to get through two separate photo shoots without having to recharge either battery. That is pretty impressive during a 4 hour shoot!

Great option for aftermarket Nikon Charger.

This is a very handy, compact battery set for Fuji cameras. I personally have a Fuji X-T4, and that is the camera I tested these batteries with.
The negative aspects of the unit: The unit doesn’t come with a power plug—it only comes with a USB-A to USB-C cord, which would allow you to plug the unit into some other USB power device that then plugs into the wall. The only other thing is that the LED display of the charger is on the bright side, and might need to be covered up with another item or some light dimming stickers, especially if you’re traveling with this charger in a small hotel room.
This unit is very compact in size and would be very easy to travel with. The base of the charger is only slighter in surface area than if you were to lay the two batteries flat on a table next to one another. The batteries plug into the unit vertically, though, as the “butt” end of the battery makes a connection with the charging prongs of the charger. Also, the mobile charger appears to have two power inputs: A USB-C one (which would work natively with the USB-C cable included with the unit) AND a micro USB connector! This flexibility is ultra handy if you have extra micro-USB cables lying around and you need to poach that valuable USB-C cable for some other device you’re traveling with. (Note: I have not tested charging batteries in the unit with the micro-USB interface. If I do and I have issues with it, I will come back and update this review.). Also, there are animated LEDs that describe the status of charging each battery, independently of one another. This feedback is nice to be able to see how close you are to a full charge.
The batteries that come with this unit feel pretty solid and comparable to Fuji stock batteries. Comparing the battery to the Fuji battery that came with my XT-4, the only notable difference I see on the label of the battery is that the voltage and Watt hours of the batteries are slightly different. (The authentic battery that came with my camera reports 7.2 V, 2200 mAh, and 16 Wh. The sticker on these batteries indicate that the batteries output are 7.4 V, 2200 mAh, and 16 .2 Wh. This would mean that the batteries that come with this charger are nominally higher voltage, though this doesn’t seem to make a difference to my camera.) Like the authentic Fuji batteries, the (2) batteries that come in this package are also Lithium Ion. I have tested these batteries in my camera and so far, they appear to operate identically to the stock Fuji battery of my camera.
Overall, I’m very satisfied with this product, and would recommend it to anyone who has an X-T4 or any other type of Fuji camera that uses these batteries.

So far works as expected as the original Fujifilm NP-W235 batteries. No warning in the camera indicator, no heat-up, and they last as long as the original ones.
The charger is also beneficial since no external charger is included in the camera kit. It provides much convenience when traveling and you need to charge more than one battery at the same time.

To be honest, I dislike The En-EL14 batteries for Nikon cameras as much as i do the NP-Fw50 batteries for Sony. These batteries have always had terrible battery life in my use cases. So having multiple batteries was always a must, to ensure that i was never up a creek without a paddle when i needed it most.

K&F has always done a good job with their series of batteries. I have tested their batteries across multiple camera brands and i have never had any issues with any of them. The only thing that can be said is that these do not give you the full battery life that the OEM will offer but the reduced battery life to cost savings over the OEM is worth it in most cases for me.

I used these batteries in my Nikon D5600 and D3500. I noticed more of a difference in performance in my D5600 battery life when compared to OEM than with my D3500. I took both cameras out with me while i walked around getting shots of nature for the day. It was about 95 degrees that day so i expected the batteries to die much faster, which did not happen. The batteries held up well in the higher temps and gave me a sufficient amount of shots. In most cases, i would never take over 300 shots when birding or anything of that nature but did on both cameras just to better access the batteries.

The biggest area that i noticed a difference in was when i left the batteries fully charged in the camera bodies and coming back 2 days later to one at 52% and the other at 39% when i had never seen the at much of a power drain on my OEM batteries when i left them in the body. Not sure why that happened but i know now to never leave those batteries in the body if i want them fully charged and ready to go.

Overall these are good batteries that fall slightly short of the OEM. It is also hard to find new OEM batteries, so amongst the deep sea of third party batteries, these are some of the better ones i have used.

This USB powered battery and charger by K&F Concept is just the thing you need if you take a lot of pictures. (And it comes with 2 batteries)

These days we need batteries to run a lot of what 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 you’re getting the best quality while also not spending a lot of money.

This charger set is for Nikon cameras using the EN-EL14 model battery. You can charge both batteries at the same time using the 2 battery slot USB charging station. The charger can use either a USB-C cable (included) or a micro USB cable (not included) to charge the batteries.

A red light let’s you know the batteries are charging and when it goes off 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 of the model of your camera) and it works just fine. It’s recognized by the camera (some aftermarket batteries won’t work) and with each battery rated at 1050mAh, you’re sure to have plenty of spare power on hand.

I recently bought a used Nikon D3300 for use with a couple of AF-P wide angle and tele zoom lenses since my older D7000 DSLR does not work with one of those 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 the charger set. I really don’t need two batteries since I don’t use this camera quite often as I use my other two FF and APS-C mirrorless cameras. But these extra batteries will come in handy if I take this camera on vacation, no need to worry about charging for days.

Over the years, I have bought quite a few K&F Concept products, they all have been of excellent quality. These batteries and the charger set look great as well. The package came with a charger, two batteries and a generous 3 ft long charging cable with USB-A and USB-C end connectors. But note that there is no wall charger brick included. The battery charger has USB-C and Micro-USB input ports. The batteries came fully charged. The charger works just fine but yet to find out how long it will take to charge each or both depleted batteries.

Just like the OEM battery, these batteries can be easily inserted into the camera and removed. Works as expected. These batteries should last me for a while. Someday, I will update this review on the number of shots I get from each full charge. Happy with this set and based on the past history of the products I owned from K&F Concept, I definitely recommend this set.