{"product_id":"dell-alienware-m15x-replacement-battery-108v-4400mah-li-ion","title":"Dell Alienware M15X Replacement Battery SQU-722 10.8V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell Alienware M15X — 10.8V Li-ion Replacement Battery (SQU-722)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 4400mAh (47.52Wh) Li-ion replacement battery for the Dell Alienware M15X gaming laptop and Alienware P08G. It replaces OEM part numbers SQU-722, SQU-724, 312-0207, D951T, F681T, and related Dell cross-references. Slot it in when the original cell no longer holds a charge or the system refuses to leave the charger.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM15X and P08G compatibility:\u003c\/strong\u003e\n    These two platforms share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The same cell works across M15X6CPRIBABLK and M15X9CEXBATBLK configurations because Dell kept the power rail and communication bus identical across those SKUs.\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 the M15X platform. The BMS communicated correctly with the Dell EC, charge current tapered as expected near capacity, and the cell hit rated voltage without thermal events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBIOS learn cycle after install:\u003c\/strong\u003e\n    After fitting this battery, run the laptop down to hibernate cutoff on battery only — no charger — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle 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 M15X shuts down at 20–30% charge remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe M15X pulls hard when the GPU and CPU are both under load. At that draw, a degraded or uncalibrated cell hits a voltage cliff — the terminal voltage drops faster than the fuel gauge IC predicts. The system interprets this as an unsafe condition and cuts power before the displayed percentage reaches zero. This is not a fault in the replacement cell itself. Run one full discharge-to-hibernate cycle after installation and the fuel gauge IC re-anchors its model to the new cell's actual discharge curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reports battery health as \"poor\" or \"replace\" after a new cell is fitted\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Dell EC reads health data from EEPROM registers inside the battery pack, not from live cell voltage alone. When a new cell is installed, those registers start without the charge history the BIOS expects to see, which triggers a false health warning. This is not a sign the replacement cell is faulty. Complete one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — after that cycle the EC rewrites its health baseline and the warning clears.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409726242906,"sku":"BWCS-DEM150NB-1","price":115.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409726275674,"sku":"BWCS-DEM150NB-2","price":131.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409726308442,"sku":"BWCS-DEM150NB-3","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEM150NB-1.webp?v=1779580542","url":"https:\/\/batteryweb.com\/products\/dell-alienware-m15x-replacement-battery-108v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}