"And both of my 11.1 volts batteries are not being charged more than 9 volts even when i had put them charge to more than 5 hours. But when I connect this battery to a single ESC with propeller, motor is rotating till max throttle. All the above…"

"Ya. It rotates. That too with out propeller. If we attach propeller, its starts rotating. then stops again with in a second. And yes, we have calibrated ESCs using KK board. The problem comes only when we attach propellers to motors. And when we…"