{"product_id":"dell-studio-xps-13-replacement-battery-111v-4400mah-li-ion","title":"Dell Studio XPS 13 Replacement Battery 11.1V 4400mAh 312-0773","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell Studio XPS 13 \/ Studio XPS 1340 — 11.1V Li-ion Replacement Battery (312-0773)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 4400mAh (48.84Wh) Li-ion battery replaces the original pack in the Dell Studio XPS 13 and Studio XPS 1340. It fits the same bay and connects to the same three-wire BMS circuit as the factory cell. OEM part numbers covered include 312-0773, 312-0774, P866C, P891C, T555C, T561C, P878C, PP17S, R437C, and W004C.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStudio XPS 13 and 1340 platform fit:\u003c\/strong\u003e\n    Both models share the same 11.1V three-cell battery bay, connector pinout, and BMS handshake protocol — that is why a single replacement cell covers both. The thermistor line and ID resistor values match across all listed OEM part numbers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge and discharge cycle on a Studio XPS 1340. The BMS accepted the charge handshake immediately, reported correct voltage across all three cells, and the thermal cutoff did not trip at any point during the test.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Studio XPS:\u003c\/strong\u003e\n    After fitting, run the battery down until the laptop hibernates, then charge uninterrupted to 100% without interruption. This forces the Dell BIOS battery learn cycle to reset against the new cell 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\"\u003eBIOS reporting poor battery health immediately after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDell's BIOS stores cycle count, charge history, and health data in EEPROM on the original battery pack. When a new cell arrives, that EEPROM data is blank or mismatched, so the BIOS flags the battery as degraded before it has ever been charged. This is a firmware read problem, not a cell fault. One full discharge-to-hibernate followed by an uninterrupted charge to 100% completes the learn cycle and overwrites the stale health flag. After that cycle, the BIOS should report the battery as normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down unexpectedly at 20–30% charge shown\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC in the Studio XPS calibrates its remaining-capacity estimate against the old cell's voltage curve. A new cell with a slightly different voltage-to-capacity curve hits a steep voltage cliff at a point the IC still reads as 20–30%. Under full CPU and display load, voltage drops fast enough to trigger the low-voltage cutoff before the gauge reaches 0%. Run two or three full discharge-to-hibernate and full-charge cycles to let the fuel gauge IC remap its estimate against the new cell's actual curve. After calibration, shutdowns at high displayed percentages stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410810110042,"sku":"BWCS-DE1340NB-1","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410810142810,"sku":"BWCS-DE1340NB-2","price":117.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410810175578,"sku":"BWCS-DE1340NB-3","price":128.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DE1340NB-1.webp?v=1779581142","url":"https:\/\/batteryweb.com\/products\/dell-studio-xps-13-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}