Replacement 4000mAh BNA-B0002, L83-4977-266-01-4 Battery for Barnes & Noble NOOK HD 7, BNRV400, BNTV400 Tablet with Installation Tools Replacement for the following battery model/part numbers: BNA-B0002, L83-4977-266-01-4. Compatible with the following models: Barnes & Noble NOOK HD 7 tablet, BNRV400, BNTV400. PLEASE NOTE: THIS BNA-B0002 BATTERY IS NOT A COMPATIBLE REPLACEMENT FOR THE NOOK HD+ BNTV600 (BATTERY MODEL NO.: GB-S02-308594-0100). 3.7V 4000mAh 14.8Wh Lithium-Polymer Battery. Includes Free Installation Tools. 1 Year Replacement Warranty. MPF Products is a Registered Trademark.