{"product_id":"hp-pavilion-x360-13-u113tu-replacement-battery-1155v-3600mah-li-ion","title":"BI03XL HP Pavilion X360 Compatible Battery 11.55V 3600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Pavilion X360 13-U113TU — 11.55V Li-ion Replacement Battery (BI03XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.55V, 3600mAh Li-ion replacement battery for the HP Pavilion X360 13-U113TU convertible notebook. It also fits the Pavilion M3-U, M3-U001DX, and Stream 14-AX010WM, among others sharing the BI03XL platform. OEM part numbers include BI03XL, HSTNN-UB6W, HSTNN-LB7P, and 844203-855.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePavilion X360 and M3-U series compatibility:\u003c\/strong\u003e\n    These models share the same 11.55V three-cell architecture, identical connector pinout, and the same BMS handshake protocol — which is why a single cell like BI03XL spans the entire platform without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a Pavilion X360 unit. The BMS accepted the cell without error flags, the charge controller held the correct 12.6V termination voltage, and the protection circuit tripped correctly at low-cell cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install recalibration on HP convertibles:\u003c\/strong\u003e\n    After fitting this battery, run the notebook down to hibernate cutoff under normal use, then charge it uninterrupted to 100%. This forces the BIOS to run its battery learn cycle against the new cell 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 Pavilion X360 BIOS reports poor battery health after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP BIOS reads health data from the battery's EEPROM — a small memory register on the cell's BMS board. When a new cell arrives, that EEPROM holds factory defaults that don't match the notebook's stored charge history. The BIOS interprets the mismatch as a degraded or unknown cell and flags it as poor health. Running one full discharge-to-hibernate then a full uninterrupted charge completes the battery learn cycle and rewrites the BIOS's reference data against the new cell. After two to three cycles, the health indicator normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePavilion X360 shutting down at 20–30% battery shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a fuel gauge IC calibration problem, not a faulty cell. The fuel gauge IC on the BMS estimates remaining capacity based on charge history from the old battery — those figures don't carry over accurately to a new cell. Under combined CPU and display load, the laptop hits a voltage cliff earlier than the uncalibrated gauge predicts, triggering a hard shutdown. Run two full discharge and charge cycles without interruption to let the fuel gauge IC re-map its capacity curve against the new cell. After calibration, the gauge should track accurately down to the BMS low-cell cutoff near 9.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409737973850,"sku":"BWCS-HPM300NB-1","price":62.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409738006618,"sku":"BWCS-HPM300NB-2","price":71.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409738039386,"sku":"BWCS-HPM300NB-3","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPM300NB-1.webp?v=1779580583","url":"https:\/\/batteryweb.com\/products\/hp-pavilion-x360-13-u113tu-replacement-battery-1155v-3600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}