{"product_id":"hp-probook-450-g6-replacement-battery-1155v-3800mah-li-polymer","title":"HP RE03XL ProBook 450 G6 Replacement Battery 11.55V 3800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ProBook 450 G6 — 11.55V Li-Polymer Replacement Battery (RE03XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.55V, 3800mAh (43.89Wh) Li-Polymer replacement battery for the HP ProBook 450 G6, 440 G6, 430 G6, and 445 G6. It uses OEM part number RE03XL and cross-references HSTNN-DB9A, L32407-2B1, and L32656-005 among others. If the original cell is swollen, dead, or no longer holding charge, this is the direct cell swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProBook 430 \/ 440 \/ 445 \/ 450 G6 platform fit:\u003c\/strong\u003e\n    These four models share the same 11.55V three-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol — one cell covers all four. The BIOS on each expects the same EEPROM battery ID, so the RE03XL registers correctly without firmware flags on any of them.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a ProBook 450 G6 and confirmed the BMS handshake completed on first insertion, the BIOS accepted the cell as a known battery, and charge current stepped correctly from bulk to taper phase without interruption or error codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBIOS learn cycle after swap:\u003c\/strong\u003e\n    After installing, discharge the laptop fully until it hibernates on its own, then charge uninterrupted to 100% without waking it. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears on the first few boots after any cell replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ProBook 450 G6 reports poor battery health after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP BIOS stores charge history and wear data in the old cell's EEPROM. When a new cell goes in, that history resets to zero, and the BIOS interprets the mismatch as a degraded or unknown battery. The health warning is a firmware artefact — not a sign the replacement cell is faulty. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% lets the BIOS rebuild its learn table against the new cell and clears the warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eProBook 450 G6 shutting down at 20–30% charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC inside the laptop is still calibrated to the old cell's voltage curve. The IC reads 20–25% but the actual cell voltage has already hit the low-cutoff threshold under full CPU and display load — so the system cuts out without warning. The fix is a calibration cycle: let the laptop run unplugged on battery-only until it hibernates at low battery, then charge to 100% without interruption. After two to three of these cycles, the fuel gauge re-anchors to the new cell and the shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409693245530,"sku":"BWCS-HPG460NB-1","price":62.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409693278298,"sku":"BWCS-HPG460NB-2","price":71.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409693311066,"sku":"BWCS-HPG460NB-3","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPG460NB-1.webp?v=1779580454","url":"https:\/\/batteryweb.com\/products\/hp-probook-450-g6-replacement-battery-1155v-3800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}