Replacement BNRB1530, BNRZ1000, 9BS11GTFF10B3, 9875521 Battery Barnes and Noble Nook Portable ebook reader Capacity: 1250mAh / 4.6Wh Type: Li-ion Volts: 3.7V Size : 65.80 x 53.70 x 4.80mm Certificated with ISO9001, RoHS & CE