Worth the money.

bought as an additional battery for my XT5 I find very good the possibility of recharging without external charger thanks to the usb c.
Seems to hold the charge well.

No issues so far paired with a X-T4. Charges fairly fast via USB-C and it exceeded my expectations in terms of battery life. Wasn't crazy about the blue design at first, but now I actually love it. Great alternative to OEM.

I have several spare batteries for my camera and this one is a welcome addition. The feature that really stood out is the USB-C port on it. You can charge it quickly this way without needing to plug in the camera or put this into a dedicated charger. Just pull out an available USB-C wire and start charging.

K&F are renowned for making top quality and affordable photography equipment and this K&F NP-W235 is no different.

The K&F branded NP-W235 battery has an inbuilt charger meaning all I need to charge it up is a USB C cable (either USB A to USB C or USB C to USBC), eliminating the need to take a bulky battery charger with me, and this is a game changer for me.

The K&F NP-W235 battery takes around 2.5 hours to fully charge which is longer than using a conventional NP-W235 battery and charger however this is a trade off I am willing to accept for the convenience of the K&F battery.

This battery doesn’t last as long as the Fuji branded batteries, but this is to be expected and I have yet to find any third party branded battery that lasts as long Fuji branded batteries. It is evident I don’t get as many photos or as many video minutes per charge however the difference isn’t that great. Besides, these batteries are a fraction of the price of Fuji branded batteries so I’ll just get another one.

Many third party batteries are a poor fit and suffer swelling when hot. I have not experienced this using the K&F NP-W235 battery and it fits nice and tight, hence ensuring a good connection, but also easy to remove at the end of the session when it needs charging.

At £36.99 (at the time of review) these K&F batteries are a fraction of the cost of the Fuji branded batteries and are great value for money. One thing that is worthy of note is that number of shots/video minutes per pound is less than Fuji branded batteries.

Overall these K&F batteries are superb and highly recommended and when I need additional batteries I am going to go for these over Fuji branded batteries not least because of the convenience of not having to take a charger.

Disclaimer: I am privileged enough to be part of the Amazon Vine program and as such I have the opportunity request products that I would find useful/potentially buy to road test in exchange for an honest review. I am not paid for this and all of my reviews are unbiased and based on my own experience.

K&F CONCEPT never fails to impress me. I never really thought about this for camera batteries, but they built a USB C port right into the side of the battery itself. Whenever I run out of charged camera batteries on the road, I don’t always have access to an AC outlet. But I always have a USB port in my car or a portable power bank to use. I’ve seen designs like this for other things like flashlights, but never for a camera battery. To add to the goodness, this battery has a higher MAH rating than the Fuji OEM one. Well done K&F CONCEPT!

I ordered this K&F CONCEPT NP-W235 2400mAh Battery to use in my Fuji GFX100s.

The GFX100s is a great camera, but battery life is not so great. Instead of using a larger battery, Fuji chose to use the smaller battery from their Fuji-X cameras to keep the 100s as small as possible. While I appreciate the form factor of the 100s, I'm not a fan of how many batteries it goes through during a heavy day of shooting. And because I often carry more than one camera, that means carrying a charger for each battery type.

Kudos to K&F CONCEPT for eliminating the need for a separate battery charger. This battery has a USB-C input that allows you to charge the battery from any source of USB power. I tested the battery life and I did not really see any difference between the K&F CONCEPT and my OEM Fuji battery. I should note that the OEM battery is about a year old, so it has probably degraded somewhat whereas the K&F CONCEPT is new. As for recharge time, it took under 3 hours to go from a dead to fully charged.

I did try to recharge the K&F CONCEPT with the OEM Fuji charger and got no errors, so if you want to use a standard charger, you can. Personally, I'll be replacing all of my W-235 batteries with these as they age and lose the ability to hold a decent charge.

After shooting over 100 shots the battery is about 3/4 full. Seems to be working as well as the original Fuji battery.

This is a great idea, building the recharging component directly inside the battery housing so that you no longer have to carry a separate battery charger. All you do is connect the USB C cable to a power source and connect the other end to the battery itself (which has a USB C port built into the body). The supplied cable is short, but adequate. The dimensions and sizing of the battery are exactly the same as the original OEM battery, and the battery slides in and out and clicks into place in the camera just like the original. A nice touch is that it comes with a protective cap for when it is not in use (even the original Fuji batteries do not!). No concerns about battery life compared to the OEM. About half the price of the original battery. And, as pointed out by another reviewer, you can also charge the battery with a traditional charger if desired. Feels like a high quality build. Highly recommended.

This particular battery model boasts a highly practical feature - a USB-C charging port that is built into its design. It should also be noted that this battery model has a marginally higher capacity than the original OEM battery. Great value for the money. I will highly recommend it.