Newmowa don't fabricate all Nikon batteries models, only low capacity batteries.
Maybe you discover a good trademark for low capacity batteries, but still careful.
Few tips for you:
Try to use always the Newmowa battery charger with the Newmowa batteries, don't use the Nikon original charger, usually 3rd party batteries works better with his own charger and replace the Nikon original charger it's quite expensive if the batteries damage it.
If you see any size warp distortion in the battery, don't use it anymore.
If you see the battery temperature is abnormal high when you charge it or done any strange sound. Don't use it anymore.
Summertime is when usually when shit happens, so be extremely carefully with the temperatures, if your camera reset or start to suddenly off, remove the battery fast as you can, the thermic components of the cheap batteries is a piece of crap.
I tested Patona and DSTE EN-EL18 and EN-EL4 in summer with photo seasons of 8–10 hours of continual use and abuse and worked quite well, and the original Nikon charger is working fine with them. But I see the Nikon originals finished the day of season with more battery charge difference between 10% to 20%. Yes, I can live with this, but it's an important fact.
Discharge ratio speed when you're not using the camera is also 20- 25% faster than the original Nikon one.