I got a replay from Horizon Hobbies about the E-flite batteries for the MCX and MSR.
Andrew at HH hobby said the battery could last 20 flights or 100 flights and there is not a set life expectancy. I do not care if the ones on eBay give you a minute less flying time I will never buy another E-flite battery!!!!!!!!! I wish I had saved the email, as it was not very professional. I have bought 7 E-flite helicopters and many spares in the past 2 ½ months and I sure as heck will not buy another.