Replace your Samsung GALAXY Tab Pro 10.1 SM-T520 Battery or Keep an Extra Battery on hand as a backup. This kit comes with a 8220 mAh Rechargeable Lithium-Polymer Battery! Most suppliers offer a battery that is thousands of mAh less than your original battery. Works in your Samsung GALAXY Tab Pro SM-T520 and SM-T525 Tablet. Simple, Easy and Inexpensive! You get a New Battery, Video Instructions, Special Tools needed for battery installation, AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase our NewPower99 Battery Replacement Kit for GALAXY Tab Pro 10.1 SM-T520 and SM-T525 Tablets.