Notice: the led lights of charger will be off while the batteries fully charged. Therefore, the charger LEDs won't bright or blink while the batteries are full or in other words: inside voltage is over 4.0v.
Capacity: REAL 600mah.This is the best capacity for udi u818a series.Designed by HOBBYTIGER.
Flying time: about 8 minutes which is 1-2 minutes longer than original UDI 500mah battery(6-7 mins)
Compatible with UDI U818A, U818A-1, U818A HD, U818A HD+ 2.4GHz 4 RC Quadcopter. Not for UDI U818A WIFI FPV.
Safety: Over charge protection and short circuit protection 5-in-1 charger adapted to charge 5 batteries at the same time
Package including: 5x batteries + 1x 5-in-1 USB charger + 5 pieces of jst plug adapters