I have the product in order to have a charging station concerned in which I can put it back the remote commander. The charging station works only partially, mostly comes not making contact zusatande or if the contact is there is only about 1 hour. loaded and then appears, the battery is full. So much current is flowing through the USB port (Max. 500mAH) not that it is a "fast" charger would (estimated charging time then about 4-6 hrs.). Furthermore, not even keep the enclosed batteries half the time of normal batteries. I have otherwise XCell 800mAH battery, keep twice as long as the alleged 2800mAH batteries which are included.
I can therefore only advise of the product. That's a waste of money.