9v Battery Eliminator Kit - Stop buying Expensive Alkaline 9v Batteries today Includes 9v AC/DC Adapter at 500ma with a custom ProTechTrader 9v battery snap connector converter to replace 9-Volt Batteries forever This Kit can save 100s of dollars a year getting rid of 9v batteries in many devices and small electronics. Please Note: May not work in all devices / You may need to leave battery door cover off if applicable or modify with small hole or notch for wire.