How long of a flight on a single charge

A couple people asked me how long of a flight can I get on my Emax Tinyhawk II Freestyle. Today we tackle that question. Result will very depending on weather conditons like temp, wind, and humidity. It was in the 70's and pretty windy. Also, the type of battery used can change the outcome as well. I am not an expert in the least bit just sharing hands on experience from flying in my back yard. FYI I forgot to hit record for about a minute to a minute in a half after the crash/wipeout in the video. That's the reason for the discrepancy with the flight time clock in the video at the bottom right of the flight video.

DISCLAIMER:
All hobby grade RC is sold with the 14 years old and up. Please keep in mind though that certain aspects of RC can be extremely hazardous and can cause serious injury or even death. With this in mind we here at Shadow Opp.'s RC believe and recommend that under 18 years old that adult supervision is a must and not optional.

Our Set Up:
FPV Quad "drone:" Emax Tinyhawk II Freestyle 2.5inch fpv analog quad
Transmitter "TX:" Frsky Taranis Q X 7
Reciever "RC:" Built in Frsky D8 compatible. Please note that the latest version of Frsky Radios with ACCST are not compatible and will keep you from binding. There is a module you can get that makes these newer radios compatible. "Info about this is pulled and summerized off of the Emax-USA website for the Emax Tinyhawk II Freestyle"
Quad Battery: GNB 1s 520mah HV battery "This drone in stock format requires 2 batteries for flight."
Transmitter Battery: Admiral 2s 1500mah
FPV Goggles: Quantum Cyclops 5.8GHz Analog FPV Goggles with built in dvr.