GoolRC 4 in 1 Charger Set with 4pcs 3.7V 1200mAh Li-po Battery for Syma X5SW X5SC RC Quadcopter High quality and durable in performance. 4-port charger can charge four batteries once time. Safety for the using time of battery. Over charge for protection for every charging port. Suit with Syma X5SW RC quadcopter.