XCSOURCE 4 pcs 3.7V 800mAh Lipo Battery + Charger For Syma X5C X5A X5SC X5SW Parts RC Quadcopter BC535 This charger can charge 4 batteries at the same time. It provides overcharge and short circuit protection. Over charge protection for every charging port, more safety. Good product with superior material, which is more durable & practical, and not easy to damage. Widely used on RC airplane, helicopter, ect. It can help your quadcopter fly much higher and quicker, more secure.