New battery replaced, maintenance completed. Super Famicom: After replacing the new battery, startup, operation, and saving have been confirmed. Disinfected with anhydrous ethanol. Please assess the condition of the cartridge from the images. Please purchase only if you are satisfied. The cartridge terminals have been polished and cleaned with anhydrous ethanol and a polishing compound to remove dirt. Maintenance has been performed to the point where it starts up almost immediately on my console, but there is no guarantee of immediate startup on other consoles. This is an old product from decades ago, so it may require multiple insertions and removals.