Best Replacement Battery For Udis

✉6 Month Warranty.If you have any issue with our products,please contact us by email or ask the question on the product page.We will try our best to solve your problem!✉✿3.7V 500mAh Lipo Batteries for UDI U818A U817A U817 U818A-1 RC Quad Copters This 3.7V 500mAh LiPO battery is a replacement battery. It will give more PUNCH and ROBUST performance due to its higher current output and power. Direct replacement battery for UDI U818A U817A U817 U818A-1 RC Drone Quadcopter, no modification is needed. ☛Specification:Voltage: 3.7V Capacity: 500mAh Battery Type: Lithium Cells : 1Weight:16g / 0. 56oz(not including wires and package)Size:57mm*18mm*7.5mm/ 2.24 x 0. 71 x 0. 3 inch☛Package included: 4pcs*3.7v 500mah lipo batteries 1*X4 charger 1*usb cable 4*adapter cables☛Reminder: First,plug in the battery Second,plug in the USB cable☛Compatible with these models: UDI U818A, U818A-1, UDI U817, U817A WLtoys Quadcopter V959 V969 V979 V989 V999 V929 V949 V212 V222☛LED Status for charger : Red Lights on: currently charging Red Lights off: charging complete ☛The instruction for charger: 1.Please inspect the batteries for any damage or swelling before charging 2.Plug all the white connector of batteries or the white connector of the converting wires into the port of charger completely 3.While the light is off ,it indicates that the batteries are fully charged.While the batteries are full,Please unplug the adapter at once☛Kindly Remind Please feel free to contact us if you have any questions, wish you have a nice day!☁