{"product_id":"greatwall-t50-replacement-battery-111v-4400mah-li-ion","title":"GreatWall T50 Laptop Replacement Battery 11.1V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGreatWall Asus F3 Series (T50) — 11.1V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh (48.84Wh) Li-ion battery for the Asus F3 laptop series, fitting the T50 model. It slots into the battery bay and reconnects the notebook to full cordless operation. Order this when the original cell no longer holds charge, fails to register in the OS, or powers down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAsus F3 \/ T50 platform fit:\u003c\/strong\u003e\n    The F3 and T50 share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers the full range. No adapter or modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on F3 hardware and monitored the BMS handshake at first insertion. The BIOS flagged an unknown battery state on the first boot — expected behaviour after any cell swap. After one full learn cycle, charge reporting stabilised and the health warning cleared.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Asus F3:\u003c\/strong\u003e\n    After fitting this cell, run the laptop on battery until it hibernates at low voltage, then charge it uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every 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 a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Asus F3 BIOS reads health data stored in the outgoing cell's EEPROM. When a new cell arrives, that EEPROM data is blank or mismatched, so the BIOS flags the battery as degraded or unknown — even though the cell is fresh. This is not a fault with the replacement. One full discharge-to-hibernate followed by an uninterrupted charge to 100% writes new reference data to the EEPROM and clears the warning on the next boot.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on screen\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 discharge curve. The IC is still using reference points from the old, degraded cell, so it underestimates remaining capacity and triggers a low-voltage shutdown too early. Run two or three full discharge-and-recharge cycles to let the fuel gauge IC map the new cell correctly. After calibration, the reported percentage at shutdown should drop below 5% at approximately 10.5V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410852151386,"sku":"BWCS-AUF3NB-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410852184154,"sku":"BWCS-AUF3NB-2","price":86.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410852216922,"sku":"BWCS-AUF3NB-3","price":95.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUF3NB-1.webp?v=1779581357","url":"https:\/\/batteryweb.com\/products\/greatwall-t50-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}