I have another question if you don't mind - I received this charger and the charging went perfectly, however I am almost 4 hours into what seems like a normally functioning discharge cycle and the batteries still show 15.6V and 3 of the 4 lights are on suggesting each battery is only down to about 75% (from 100%). The batteries are of course turned on and it appears to be working based on the display (displaying voltage and discharge rate), however the batteries are not even warm (the charger is though). Can anyone please confirm how long it takes to discharge the M2 batteries on the Hanatora? At my current rate it will be 12h+. The information is not in the small manual that came with it. I had assumed discharge time would be roughly that of an actual flight, or at most similar to the charge time. TIA.