KKmoon Super Fly Sets X6 Charger with 6Pcs 3.7V 200mAh Lipo Battery for Wltoys V911 V911-1 V911-2 F929 F939 6Pcs 3.7V 200mAh lipo battery. High quality and durable perfermace. X6 charger can charge six battery once time. Just need approximate 50 mins charging time. Compatible with Wltoys V911 V911-1 V911-2 F929 F939.