After my wife gave a GoPro and now awaits the first diving holiday with the thing, were a few small parts needed. Since the GoPro battery just by holding one hour of video recording, replacement batteries are of course mandatory. There was to Ladeset of XCSOURCE no reviews, I could only hope not to buy scrap. Simultaneously with the charger, two batteries are charged. Used batteries of the charging circuit are announced via microswitch. The operating and charging status is indicated by three LEDs and the charging unit can even via microUSB a phone or tablet to load. The enclosed batteries have a capacity of 1180 mAh indication and are therefore (at least on paper) about 12% more efficient than the original battery of my GoPro. However, whether the specifications for LiIon batteries are complied with at the store, I could not figure out. Anyway, two supplied batteries were recharged in about two hours, during which I have used to power a USB power adapter. Some will complain that this is not a power supply here. I personally find it perfect to be able to use a standard USB power adapter, since I have so simply fewer parts in the trunk. There go anyway always so some electronic devices while traveling and in the worst case needs each with their own AC adapter. Unlike the original, the contacts of the enclosed batteries are designed a bit tighter, so that they are to use and take out a little harder in the camera and the battery charger. With a bit of flair that works well but without the contacts suffer. Grobmotoriker could cope better with the much more expensive original batteries. I think the price and the processing of the goods in any case absolutely convincing. Whether the batteries will satisfy the capacity and lifetime ago, I'll know shortly.