I agree with lincpimp. I have the Polyrc 4350 and it was taking close to 4200 when I charge it one time. I think Polyrc is not a popular name like Polyquest or Flightpower but they are real good and it outperform my 5S 8K MAXAMPs
but don't have the runtime like the 8K with the 4350 mah 5S Polyrc that I score for 50.00 shipped from the fellow member at Lstforum. It is like new, the best 50.00 I spent.