{"product_id":"hp-chromebook-13-g1-replacement-battery-114v-3900mah-li-polymer","title":"SD03XL HP Chromebook 13 G1 Replacement Battery 11.4V 3900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Chromebook 13 G1 — 11.4V Li-Polymer Replacement Battery (SD03XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.4V 3900mAh (44.46Wh) lithium-polymer replacement battery for the HP Chromebook 13 G1. It fits the full G1 lineup including the W4M19EA, X8C55US, and W6S33AA variants. OEM part numbers include SD03XL, HSTNN-IB7K, 847462-1C1, and TPN-Q176.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eChromebook 13 G1 fitment:\u003c\/strong\u003e\n    All G1 variants share the same three-cell Li-Polymer pack running an 11.4V nominal rail. The connector pinout, BMS communication protocol, and physical footprint are identical across the lineup — one cell fits every G1 configuration listed.\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 G1 unit. The BMS handshake completed without fault codes, charge acceptance reached rated capacity, and the EC controller recognised the cell without triggering unknown-battery warnings.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Chromebook 13 G1:\u003c\/strong\u003e\n    After fitting, let the battery drain fully to hibernate cutoff, then charge uninterrupted to 100%. This forces ChromeOS and the embedded controller to re-learn the new cell's discharge curve and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Chromebook 13 G1 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe G1's embedded controller uses a fuel gauge IC that tracks charge state against the old cell's learned discharge curve. When a new cell goes in, that curve no longer matches reality. At around 20–30% shown, the voltage under CPU and display load drops faster than the stale model predicts, and the EC triggers an emergency shutdown to protect the cell. Running one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% resets the learn cycle. After two to three calibration cycles, the reported percentage tracks the actual cell state accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor or unknown after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G1's firmware reads battery health data from the cell's EEPROM on every boot. A new cell carries different EEPROM values than the original — cycle count, rated Wh, and charge history — which the BIOS interprets as degraded or unrecognised hardware. This is a data mismatch, not a fault with the replacement cell. Run a full discharge-to-hibernate cycle, then charge to 100% without interruption. The embedded controller rewrites its internal health model against the new cell's actual parameters, and the poor-health flag clears within one to two cycles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409741545562,"sku":"BWCS-HPC131NB-1","price":105.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409741578330,"sku":"BWCS-HPC131NB-2","price":121.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409741611098,"sku":"BWCS-HPC131NB-3","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPC131NB-1.webp?v=1779580582","url":"https:\/\/batteryweb.com\/products\/hp-chromebook-13-g1-replacement-battery-114v-3900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}