I would like to know those of you that had purchased the Evo 2 about a year ago how many flights are you getting out of a battery before it starts losing MAH of flight time? Being a previous owner of several X-Star Premiums & going through 20+ batteries sometimes only lasting less than a couple of months to as far as 4 years, I'm curious if they have made batteries worth buying? I'm looking into buying another Drone but am sitting on the fence as to which brand to buy, thanks