SHINA EMAX 4 in 1 Quattro 30A X 4 UBEC Multi-rotor Brushless ESC Quadcopter EE01-30A Battery cell: 2S-4S (7.4V-14.8V) BEC output: 5V/3A BEC mode: Switch mode Weight: 130g Size: 67.5 x 64.4 x 17mm