Replace your Garmin Nuvi 50 and Nuvi 50LM Battery or Keep an Extra Battery on hand as a backup. This kit comes with an Extended Capacity 1100 mAh, Lithium-Ion Battery that offers up even more up time than your original. Works in your Garmin Nuvi 50 series GPS. You get a New Battery, Tools (necessary for installation), Video Instructions and You also get a full One Year Guarantee exclusively when you purchase our Garmin Nuvi 50 Battery Replacement Kit.