Replace your TomTom Via 620 Battery or Keep an Extra Battery on hand as a backup. This kit comes with an Extended Capacity 1020 mAh, Lithium-IonBattery that offers up even more up time than your original. Works in your TomTom Via 620 GPS. Simple, Easy and Inexpensive! You get a New Battery, FREE Tools (necessary for installation), Video Instructions AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase our TomTom Via 620 Battery Replacement Kit.