H520 Batteries after 10hrs
I've been flying the H520 now for 10hrs and have found it to be a good overall drone. I came from the DJI "world" and find the batteries work as advertised. Generally getting 22min--of course, as with any drone manufacturer, should you just take off and hover in one place for the entire battery life, then you would probably get the 28min they claim. If you add gusty winds (I've flown it in 30+kts of wind) and colder weather 41F, it'll last 18min. If you add some weight like LumeCubes it'll take away another 1min or so of flight time.
Reviewed by: (Verified Buyer) Dennis Dickinson from Crown Point, IN.