This TOSHIBA Satellite Pro 4300 Series Replacement Battery is 100% compatable with the L17670-9TSP TOSHIBA Satellite Pro 4300 Series Replacement Battery. Our batteries and accessories are made with high quality parts and are guaranteed to meet or exceed the original equipment manufacturers specifications at a reduced price. All batteries are tested for 100% quality control assurance. This TOSHIBA Satellite Pro 4300 Series Replacement Battery includes a warranty to guarantee that it has no manufacturing defects.