Was surprised at how good this little charger is, especially when looking at the price.
I have a GoPro 5 & 8 Hero Black, so have the new 8 style batteries and older 5 batteries, both charge perfectly in this thing. Shows you when they're charged with the LED's, its compact and can also be used as a SD card reader. I plugged it into my PC to charge, and the GoPro Quik app opened, it read it as if I were attaching my GoPro, so I could download all my content as if the camera were attached, very useful.
Definitely recommend to anyone that has a few batteries that they want to keep charged and easily transported.