I got asked the Ladegrät with 2 slots and 2 batteries of WHITE by Testberichte.reviews free of charge and I must say: The product has surprised me! For this price to obtain a comparable battery life, compared to the original GoPro battery, I find it very very well. One must not be misled them that the battery of WEISS a slightly different shape than the original. This can be seen as well in the pictures that I have uploaded. It fits easily in the GoPro Hero 4. The charger is equipped with 2 status LEDs, separately at each slot one, equipped, where you can see if the battery is charged or discharged. Included is also a USB cable, which allows you to connect the Ladegrät either to the laptop or to a power supply. A power supply is not there! I use this for the my iPhone or iPad. The charger is not as high of a processing perspective, but still looks chic and above all it is very small, which was important to me.
Conclusion: The charger does the job and is very handy. The batteries fit very well into the cam and in the charger. Thanks to the tabs on the battery can be this very well removed from the Action Cam. Ene For this price clear recommendation!