Includes 1 set of electrode pads, 1 CHARGE-PAK charging unit, 1 discharger CHARGE-PAK™ charging unit and QUIK-PAK pacing/defibrillation/ECG electrode pads. Sold only as a kit. Battery/charger & defibrillation electrode pads are replaced simultaneously either upon use or expiration & expiration date is same for both. #11403-000002-KIT UNSPSC#42172105