Charley lasted from August 9 to August 15 , and at its peak intensity it attained 150 mph ( 240 km/h ) winds , making it a strong Category 4 hurricane on the Saffir-Simpson Hurricane Scale .
Charley lasted from August 9 to August 15 . Its strongest winds were 150 mph ( 240 km/h ) , classifying it as a Category 4 hurricane on the Saffir-Simpson Hurricane Scale .