{"product_id":"hp-pavilion-x2-replacement-battery-74v-3750mah-li-polymer","title":"HP Pavilion x2 Replacement Battery NB02XL 7.4V 3750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Pavilion x2 — 7.4V Li-Polymer Replacement Battery (NB02XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 3750mAh Li-Polymer replacement battery for the HP Pavilion x2 detachable hybrid tablet-laptop. It fits the Pavilion x2 11.6\" series, including models 11-H010NR and 11-H015TU, and uses OEM part numbers NB02XL, HSTNN-DB5K, and 726596-001 among others. The battery sits in the tablet portion of the unit, not the keyboard dock.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePavilion x2 tablet unit compatibility:\u003c\/strong\u003e\n    The Pavilion x2 series routes power through the tablet section only — the keyboard dock carries no cell. All listed models share the same 7.4V voltage rail, flat Li-Polymer form factor at 134.08 x 132.10 x 4.50 mm, and the same BMS handshake protocol, which is why one cell covers the full variant range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and load cycles on the Pavilion x2 platform. The BMS communicated correctly with the HP charge controller, accepted a full charge without tripping the protection circuit, and reported cell status back to the OS without error flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the Pavilion x2:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting the NB02XL\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eHP's battery health check in BIOS reads EEPROM data that the old cell wrote during its service life. When a new cell goes in, the BIOS still holds those degraded charge-cycle counts and flags the battery as worn before it has run a single cycle. This is not a fault with the replacement cell. Run the HP Battery Check utility — if it clears after one full charge-discharge cycle, the EEPROM data has been overwritten correctly. If it persists past three cycles, check that the BIOS firmware is current, as older versions on the x2 had a known misread on Li-Polymer cells.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePavilion x2 shutting down abruptly while the OS still shows 20–25% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC on the tablet board has not yet calibrated against the new cell's actual discharge curve. The IC uses a stored model from the old cell, which causes it to misread remaining capacity — the cell voltage drops below the cutoff threshold before the gauge reaches zero. Complete two full discharge-to-hibernate and uninterrupted charge-to-100% cycles to force the IC to relearn the curve. After calibration, the cutoff should align with the OS percentage display at or below 5%. If the shutdown point does not shift after three cycles, check that the tablet's charge port is delivering a clean 5V input during charging.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409765433434,"sku":"BWCS-HPX211NB-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409765466202,"sku":"BWCS-HPX211NB-2","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409765498970,"sku":"BWCS-HPX211NB-3","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPX211NB-1.webp?v=1779580789","url":"https:\/\/batteryweb.com\/products\/hp-pavilion-x2-replacement-battery-74v-3750mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}