Original: 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 .
Simplified: Charley lasted from August 9 to August 15 . This made it a strong Category 4 hurricane on the Saffir-Simpson Hurricane Scale .