{"product_id":"asus-ux50-replacement-battery-148v-2800mah-li-ion","title":"Asus UX50 Replacement Battery C41-UX50 14.8V 2800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus UX50 Series — 14.8V Li-ion Replacement Battery (C41-UX50)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 2800mAh (41.44Wh) lithium-ion cell built to replace the original battery in the Asus UX50 and UX50V ultraportable laptops. It fits the UX50, UX50V, UX50V-RX05, and UX50V-XX004C variants. The OEM part numbers are C41-UX50 and P0AC001.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUX50 and UX50V platform compatibility:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell lithium-ion configuration, identical connector pinout, and the same BMS communication protocol — which is why one cell covers the entire UX50 line 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 full charge and discharge cycles on a UX50V unit. The BMS handshook correctly, charge acceptance reached the full 41.44Wh, and the protection circuit triggered cleanly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the UX50V:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge down to hibernate cutoff — do not interrupt it — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears immediately after any cell swap on the UX50 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 UX50 reports poor battery health right after a new cell is installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe UX50's BIOS reads health data stored in the battery's EEPROM. When a new cell arrives, that EEPROM data does not yet match the actual charge history of the replacement, so the system flags it as degraded. This is not a fault with the cell itself. Running the battery learn cycle — one full discharge to hibernate cutoff, followed by a full uninterrupted charge — writes fresh calibration data and clears the warning. After two or three full cycles the BIOS health reading stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFuel gauge reading wildly inaccurate for the first few charges\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the UX50 motherboard estimates remaining capacity by comparing voltage curves against data built up over past cycles. With a new cell, that reference data is stale and the percentage shown can jump or drop by 20–30 points mid-session. This is not a defective battery — it is the IC recalibrating against the new cell's actual discharge curve. Complete two to three full discharge-to-hibernate and charge-to-100% cycles without interruption. By the third cycle the gauge typically settles within a few percentage points of actual remaining charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410806866010,"sku":"BWCS-AUX50NB-1","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410806898778,"sku":"BWCS-AUX50NB-2","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410806931546,"sku":"BWCS-AUX50NB-3","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUX50NB-1.webp?v=1779581141","url":"https:\/\/batteryweb.com\/products\/asus-ux50-replacement-battery-148v-2800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}