melasta 4pcs 3.7V 700mAh 20C Lipo RC Quadcopters Battery + 1Pcs 4 in 1 Battery Charger for Syma X5 Series X5 X5C X5SC X5C-1 X5SW X5SC-1 X5A with Longer Flying time and Overcharge Protection High Capacity: 700mAh 3.7V 20C Lipo battery,guarantee more flight time,high drain rechargeable battery. Intelligent Charger: can charge up to 4 packs (3.7V Batteries) at the same time,smart Led indicating the charging status,with over charge protection and short circuit protection Wide usage: uniquely designed for Syma X5 X5C X5SC X5C-1 X5SW X5SC-1 X5A RC Quadcopter Charging Time : About 90 mins Flight Time: 6-8 mins Package including: 4 x rechargable battery + 1 x smart charger