{"product_id":"elonex-webbook-replacement-battery-111v-2600mah-li-polymer","title":"Elonex Webbook NB1 Replacement Battery 11.1V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eElonex Webbook — 11.1V Li-Polymer Replacement Battery (NB1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 2600mAh (28.86Wh) Li-Polymer replacement battery for the Elonex Webbook subnotebook. It matches the OEM part number NB1 and restores portable power to the Webbook when the original cell can no longer hold a charge. This is the correct fit for users keeping legacy Webbook hardware in daily use away from a wall outlet.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWebbook platform fit:\u003c\/strong\u003e\n    The Webbook uses a single-battery bay with a connector and BMS handshake specific to this subnotebook line. The NB1 part number is the only cell that matches this bay geometry and communicates correctly with the Webbook's charge controller without triggering a refusal-to-charge condition.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the Webbook platform. The BMS handshake completed without error, charge current stepped down correctly at the CV phase, and the protection circuit tripped at the expected low-voltage cutoff without dropping the system mid-session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle reset on Webbook:\u003c\/strong\u003e\n    After fitting this battery, run a full discharge to hibernate cutoff, then charge uninterrupted to 100%. This forces the Webbook's fuel gauge IC to recalibrate against the new cell and clears the inaccurate battery health warning that appears after any 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 NB1\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Webbook stores battery health data in EEPROM from the previous cell. When a new cell is fitted, the BIOS reads the old EEPROM values and flags the battery as degraded before any real measurement occurs. This is a data mismatch, not a fault with the replacement cell. Run one full discharge-to-hibernate then a complete uninterrupted charge — this triggers the battery learn cycle and overwrites the stale EEPROM values with accurate figures from the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWebbook shutting down abruptly while the gauge still shows charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge reports a percentage based on the old cell's profile, so the Webbook shuts down at what looks like 20–30% because the real cell voltage has already hit the protection cutoff. It takes two to three full discharge-and-charge cycles for the gauge IC to map the new cell accurately. After those calibration cycles, the displayed percentage and the actual cutoff point will align — monitor resting voltage after a full charge, which should sit at approximately 12.6V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410827378778,"sku":"BWCS-WEB01NB-1","price":68.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410827411546,"sku":"BWCS-WEB01NB-2","price":80.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410827444314,"sku":"BWCS-WEB01NB-3","price":88.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WEB01NB-big.webp?v=1779581287","url":"https:\/\/batteryweb.com\/products\/elonex-webbook-replacement-battery-111v-2600mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}