sea jump 6PCS 3.7V 680mAh Batteries for UDI U818A U818A-1 U818A HD U818A HD Plus Upgrade Plus 6-in-1 Charger

Capacity: REAL 680mah.This is the best capacity for udi u818a series.Designed 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 6-in-1 charger adapted to charge 6 batteries at the same time.This charger has a power management IC and the protection voltage is 4.0V±0.1V.Normally, the led light will turn off when the voltage is over 4.0v.If the led light starts flashing, it means that the battery is close to fully charged and the voltage is around 4.0v.This phenomenon often occurs to nearly fully charged batteries, exhausted batteries will not have this problem. Package including: 6x batteries + 1x 6-in-1 USB charger + 3 pieces of jst plug