{"product_id":"hp-elitebook-x360-1040-g7-226z2pa-replacement-battery-772v-9050mah-li-polymer","title":"HP EliteBook x360 1040 G7 HK04XL Replacement Battery 7.72V 9050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP EliteBook x360 1040 G7 — 7.72V Li-Polymer Replacement Battery (HK04XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.72V, 9050mAh (69.87Wh) lithium-polymer replacement battery for the HP EliteBook x360 1040 G7 convertible notebook. It fits models including the 226Z2PA, 119Y7EA, 204P1EA, and 8WA61AV, among others. OEM part numbers HK04XL, HSTNN-IB9J, L83796-171, and L84352-005 all cross-reference to this cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEliteBook x360 1040 G7 compatibility:\u003c\/strong\u003e\n    All G7 1040 variants on this list share the same 7.72V two-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol — that's why one cell covers the full model range without firmware or connector differences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge, discharge, and BMS communication checks on the G7 platform. The protection circuit responded correctly to charge termination and low-voltage cutoff. No fault codes triggered during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle recalibration on the G7:\u003c\/strong\u003e\n    After fitting, run the battery down until the laptop hibernates, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that almost always appears after a 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 new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP BIOS reads health data stored in the old cell's EEPROM and flags the replacement as degraded because it doesn't yet have a charge history. This is an EEPROM mismatch, not a fault with the new cell. Running one full discharge-to-hibernate followed by a complete uninterrupted charge allows the BIOS battery learn cycle to rewrite that data against the new cell. After two to three cycles, the health status normalises and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell's actual discharge curve yet. The gauge was mapped to the old, degraded cell — so what it reports as 25% is actually the voltage cliff of a fresh cell under full CPU and display load. The fix is the same calibration cycle: discharge fully to hibernate cutoff, then charge to 100% without interruption. Repeat two to three times and the gauge will track the new cell accurately, typically stabilising above 7.4V at the point where it previously cut out.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409603690586,"sku":"BWCS-HPX367NB-1","price":94.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409603723354,"sku":"BWCS-HPX367NB-2","price":110.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409603756122,"sku":"BWCS-HPX367NB-3","price":123.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPX367NB-1.webp?v=1779580172","url":"https:\/\/batteryweb.com\/products\/hp-elitebook-x360-1040-g7-226z2pa-replacement-battery-772v-9050mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}