{"product_id":"lg-lw20-express-replacement-battery-111v-4400mah-li-ion","title":"LG LW20 Express Replacement Battery 11.1V 4400mAh LB52114B","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLG LW20 Express — 11.1V Li-ion Replacement Battery (LB52114B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 4400mAh (48.84Wh) Li-ion cell for the LG LW20 Express notebook and its variants, including the LW20-12DU1 and LW20-1333. It replaces OEM part numbers LB52114B, LB62114B, XBA06LG-W20, and XBA06LG-W25. Install this when the original cell no longer sustains a charge under portable use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLW20 series compatibility:\u003c\/strong\u003e\n    The LW20, LW20-12DU1, LW20-1333, and related variants all share the same 11.1V three-cell Li-ion architecture, connector pinout, and BMS handshake protocol — which is why one cell fits the full 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-discharge cycles on LW20-series hardware and monitored BMS communication at each stage. The protection circuit responded correctly to charge termination and low-voltage cutoff at every pass.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle conditioning on the LW20:\u003c\/strong\u003e\n    After installing, run the laptop on battery alone until it reaches hibernate cutoff — then charge uninterrupted to 100%. This forces the LW20's BIOS to complete its battery learn cycle and clears the inaccurate health warning that appears after any 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 LW20 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe LW20's BIOS fuel gauge IC was calibrated against the discharge curve of the original cell. A new cell has a slightly different voltage-to-capacity slope, so the gauge hits its low-battery threshold early and triggers shutdown before the cell is actually depleted. This is not a fault with the replacement cell. Running two to three full discharge-to-hibernate cycles allows the fuel gauge IC to re-map its curve against the new cell and restores accurate shutoff behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as \"poor\" or \"unknown\" immediately after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LW20 reads health data from EEPROM registers embedded in the battery's BMS. When a new cell is installed, those registers carry factory-default values that do not match the BIOS's expected charge history, triggering a false health warning. This is an EEPROM initialisation state, not a sign the cell is defective. Complete the battery learn cycle — one full discharge to hibernate cutoff followed by a full uninterrupted charge to 100% — and the BIOS will rewrite its health baseline to match the new cell's actual state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410823381082,"sku":"BWCS-LGZ1NB-1","price":82.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410823413850,"sku":"BWCS-LGZ1NB-2","price":98.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410823446618,"sku":"BWCS-LGZ1NB-3","price":109.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LGZ1NB-big.webp?v=1779581242","url":"https:\/\/batteryweb.com\/products\/lg-lw20-express-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}