RE: ECU battery, how many flights do you get out of yours?
Bart:
Using the supplied Duralite 2s2p EXB LiManganese battery pack fully charged, will give you 6-7 starts prior to seeing the "BATT or LOW BAT" indicator on the HDT. This is perfectly normal.
With my Cheetah at one recent outing, the 7th start up of the day went well, however the eighth gave me the warning. Off to the charger we went.
Some owners have changed to the 2s2p LiPo (20C or greater) opting for increased Mah. These batteries have shown excellent performance as well.
Thanks for the question
Eric Clapp