Noiposi 5 pcs 3.7v 500mah 25c lipo battery for JY018 WIFI EACHINE E52 Udi U817 U817C U817A U818A Quadcopters Wltoys V959 V969 V979 V989 V999 Model Number 3.7v 500mah 25c color:silver Product size:58*18*8mm/2.28*0.7*0.3inch Suitable for: Udi U817 U817C U817A U818A Quadcopters Wltoys V959 V969 V979 V989 V999 Excellent high discharge rate Low self-discharge and long cycle life ect