For the servos, you would need a 5 to 6V power supply capable of providing three times the servo stall current, which is probably several amperes per servo. Try to find a data sheet or product page listing that stall current.
For the servos, you would need a 5 to 6V power supply capable of providing three times the servo stall current, which is probably several amperes per servo. Try to find a data sheet or product page listing that stall current.