Fly Kool 5Pcs 3.7V 600mAh Lipo Battery for Kingtoys Foldable RC Drone UDI U45 Syma X5C X5SW X5C-1 X5SC X5SC-1 RC quadcopter Model Number 3.7v 600mah 20c lipo battery Product size:42mm*25mm*8mm (L x W x H) Suitable for :UDI U45 Syma X5C X5SW X5C-1 X5SC X5SC-1 RC quadcopter Upgraded battery offers more power, more safety and higher performance for your quadcopter. High capacity can bring you longer flying time than the original 500mah! If you have any problem with our products,pls contact me immicately,we will try our best to solve your problems!