{"product_id":"barnes-noble-005-replacement-battery-37v-1250mah-li-ion","title":"Barnes \u0026 Noble NOOK 005 Compatible Battery 3.7V 1250mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBarnes \u0026amp; Noble NOOK Classic \/ BNRZ100 — 3.7V Li-ion Replacement Battery (BNRB1530)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1250mAh Li-ion cell replaces the original battery in the Barnes \u0026amp; Noble NOOK e-reader, model 005 (OEM part BNRB1530). It fits the NOOK Classic and BNRZ100 variants that share the same battery bay dimensions and connector. Capacity matches factory spec at 4.63Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNOOK 005, BNRZ100, and Classic compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, connector pinout, and BMS handshake protocol — that's why one cell covers all three. The e-ink controller and CPU draw from the same rail, so voltage tolerance is identical across the group.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a NOOK 005 unit and confirmed the BMS accepted charge without error flags, the low-battery cutoff triggered at the correct threshold, and the display stayed stable through repeated page turns at full draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge calibration after swap:\u003c\/strong\u003e\n    After installing, charge via USB until the indicator shows full before powering on. The NOOK firmware uses the first full charge cycle to set its fuel-gauge baseline — skipping this step causes the battery percentage to read incorrectly from the first boot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the NOOK 005 shows low battery immediately after a new cell is installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eReplacement cells ship at storage voltage — typically around 3.6V — which sits just above the NOOK's low-battery warning threshold. The firmware reads that resting voltage on first boot and flags it as nearly depleted before any charge measurement has occurred. This is a firmware read issue, not a faulty cell. Connect the device to USB power immediately after the first boot and let it charge fully before using it.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping around after a cell swap on the NOOK Classic\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe NOOK's fuel gauge learns cell behaviour over charge and discharge cycles — after a swap, it has no history for the new cell. Until it completes two or three full cycles, percentage readings can jump from 80% to 40% with no load change. This is recalibration, not a defective battery. Run two complete charge cycles from under 10% to full, and the gauge will stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360269500506,"sku":"BWCS-BNR005SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360269533274,"sku":"BWCS-BNR005SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360269566042,"sku":"BWCS-BNR005SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BNR005SL-1.webp?v=1778611048","url":"https:\/\/batteryweb.com\/products\/barnes-noble-005-replacement-battery-37v-1250mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}