ordered this K&F Concept NP-W235 Battery Replacement and Charger for my Fuji GFX100s. The GFX100s is a dynamite camera, but battery life is pretty shoddy. The engineers at Fuji tried to keep the camera as compact as possible and, in doing so, opted to go with the same battery as the much smaller XT series of cameras. Even with all of the power saving features turned on, I rarely get more than a few hours of shooting before I need to change batteries. The charger that comes with the GFX will only charge a single battery at a time, and it takes a long time to complete the charge. This K&F Concept charger is the second third-party charger I own, so now I can charge 5 batteries at the same time, which is 1 more than I generally need for a full day of shooting. These batteries seem to last as long as my OEM Fuji battery and my Watson and Nitecore batteries. The charger works with the Fuji, Watson, and Nitecores. One nice thing about the charger is that it operates via USB, so you can charge up a couple of batteries in your car or even from a portable power bank. Also, the charger reports the state of charge of the batteries instead of just flashing lights at you.