The quality of the charging station is awful, and the batteries have MUCH less capacity (if a quadcopter flies for 8 minutes from the original battery on a full charge, then from these on a full charge it takes 15 seconds!)
5Pcs Upgraded 3.7V 400mah Lipo Battery For H107 H31 KY101 E33C E33 U816A V252 H6C 25C RC Quadcopter 802035 Lipo Battery 3.7 Lipo didn't receive the items.