{"product_id":"hp-spectre-x360-13-w001nf-replacement-battery-1155v-5000mah-li-polymer","title":"SH03XL HP Spectre X360 Compatible Battery 11.55V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Spectre X360 13-W001NF — 11.55V Li-Polymer Replacement Battery (SH03XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.55V, 5000mAh (57.75Wh) Li-Polymer cell for the HP Spectre X360 13-W001NF and the broader SH03XL platform. It fits the convertible's three-cell bay and communicates directly with the EC via the standard HP smart battery interface. Replaces OEM part numbers SH03XL, 859026-421, 859356-855, HSTNN-LB7L, SH03057XL, and TPN-Q178.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSH03XL platform coverage:\u003c\/strong\u003e\n    The Spectre X360 13-W and 13-AC series share the same battery bay geometry, connector pinout, and BMS handshake protocol — that is why one cell covers both lines. Voltage rail and SMBus communication requirements are identical across these models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a Spectre X360 13 unit and logged the BMS negotiation at startup. The EC recognised the cell immediately, accepted the charge cycle without interruption, and the fuel gauge IC initialised without a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eEC calibration after install:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity curve 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\"\u003eWhy the Spectre X360 BIOS reports poor battery health after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Spectre X360 EC stores cycle count, charge history, and health data in the old cell's EEPROM. When a new cell installs, that EEPROM data is gone — the BIOS reads this as a degraded or unknown battery until it collects fresh data. The fuel gauge IC also needs several full cycles to map the new cell's discharge curve accurately. Running one complete discharge-to-hibernate followed by an uninterrupted charge to 100% starts that recalibration. After two to three full cycles, the health status in HP Support Assistant updates to reflect the actual cell condition.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSpectre X360 shutting down at 20–30% after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still using the old cell's voltage-to-capacity curve. Under full CPU plus display load, the new cell's voltage drops faster than the EC predicts, hitting the firmware cutoff while the gauge still shows charge remaining. It is a calibration gap, not a fault with the replacement cell. Force a full discharge to the hibernate cutoff — do not interrupt it — then charge to 100% without unplugging. The EC recalculates the voltage cliff for the new cell and the premature shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409661165658,"sku":"BWCS-HPX314NB-1","price":78.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409661198426,"sku":"BWCS-HPX314NB-2","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409661231194,"sku":"BWCS-HPX314NB-3","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPX314NB-1.webp?v=1779580340","url":"https:\/\/batteryweb.com\/products\/hp-spectre-x360-13-w001nf-replacement-battery-1155v-5000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}