New battery holder type replacement. New battery replacement, maintenance completed. Using a test battery, startup and operation have been confirmed on a Super Famicom. Disinfected with anhydrous ethanol. We would appreciate it if you could judge the condition of the cartridge from the images. Please purchase only if you are satisfied. A holder type is installed in Tengai Makyou ZERO, which has a faster battery consumption due to the special PLG system. If you have a special screwdriver, you can replace it yourself. The cartridge terminals have been polished and cleaned using anhydrous ethanol and a polishing agent to remove dirt, so they have been maintained to the point where they start almost immediately on our system, but there is no guarantee that they will start immediately on compatible systems or other systems. Since this is an old product from decades ago, it may not start unless you insert and remove it a few times. We will install a new battery before shipping. Thank you.