500 A BOAT ESC 22S F LIER. 500A Watercooled ESC 22S 90V Boat Series. Software and Manual available at Flier Model website. Simply set function value by Prog-Box or USB Link. Li-MH/Li-Po, Ne-Cd/Ne-mH, LiFe battery can be use. Enables setting the voltage per cell for the point at which the controllers cut off circuitry engages. […]