“One battery is awesome and I get 4-7 minutes of flight time on my E-Flite Mustang.
However one battery only gets me 3 minutes before the low voltage cut off kicks in.
I've tried trickle charging it to bring the cells back up, but I still get max 3 minutes in the air.
So overall, when it works, it's a great battery with alot of grunt to get you out of hairy situations. But slightly disappointed with the difference between two brand new batteries.”