XCSOURCE USB Charger +5x 3.7V 25C 850mAh Lipo Battery for Syma X5SW X5SC Quadcopter RC176 This charger can charge 5 batteries at the same time, saving a lot of time. It provides overcharge and short circuit protection. Over charge protection for every charging port, more safety With stable performance, it is practical and durable. Fine workmanship and perfect style