You are absolutely right, the item did not have any reviews (95% of the time i do go by reviews) and after reading your post and 5 seconds of thinking about it i decided to cancel the order. I was not able to cancel it but i will be returning it when i get it, will not even bother tring to test it out.
I did not get it because of the "fast charge feature", i ordered it because i could charge 2 batteries at the same time. But since i have the original battery and the AA adapter for the grip i should have no issues having available power.
Thank you for the insight
D7200 | Nikon 35mm f/1.8 | Nikon 55-300mm f/4.5-5.6 VR | Tamron 11-18mm f/4.5-5.6 D | Tamron 24-70mm f/2.8 Di