GoolRC 3Pcs 3.7V 1100mAh Li-po Battery with 2-Port Charger Set for JJRC H11C H11D RC Quadcopter High quality and durable in performance. 2-port charger can charge two batteries once time. Safety for the using time of battery. Over charge for protection for every charging port. Suit with JJRC H11C H11D RC quadcopter.