Replace your Barnes & Noble GlowLight Battery or Keep an Extra Battery on hand as a backup. This is a High Capacity 2150 mAh, Lithium-Polymer Battery that works in your Barnes & Noble GlowLight, providing even more capacity than your original battery. Simple, Easy and Inexpensive! You get a New Battery, easy to follow Video Instructions, FREE Special Tools (necessary for installation), AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase our battery replacement kit!