NEW NEW NEW ! this auction is for a pack of 10 ! MYLIPO 205MAH 25C/50C 1S H.V. High Voltage BATTERY - PH2/power whoop connection. Great for use with the tiny whoop drone or helicopters . Please note these batteries have the larger PH2 connector and can be charged to 3.7v or to 4.35v with a H.V. charger .