DC-Battery Australia is a Consumer Electronics company profession on Replacement Laptop AC Adapter for SAMSUNG Q1 Q10 Q20 Q25 Q30 Q35 R40 R50 Series selling high capacity batteries with build in security circuit also Sens Pro 524 batteries are tested before ship from our warehouse.Base on 1 Year warranty for all our products. In here, Sens Pro 524 100% compatible with SAMSUNG Sens Pro 524 orginal Li-ion battery.