{"product_id":"dell-inspiron-14v-replacement-battery-111v-6600mah-li-ion","title":"Dell Inspiron 14V Replacement Battery 11.1V 6600mAh W4FYY","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell Inspiron 14V \/ 14R Series — 11.1V Li-ion Replacement Battery (W4FYY)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 6600mAh (73.26Wh) lithium-ion battery for the Dell Inspiron 14V, 14VR, 14R-346, and M4010. It replaces OEM parts W4FYY, X3X3X, 0M4RNN, 0KCFPM, 312-1231, FMHC10, KG9KY, and TKV2V. The connector and BMS handshake match the original, so the laptop recognises the pack on first boot.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInspiron 14V \/ 14R platform compatibility:\u003c\/strong\u003e\n    These models share the same 11.1V three-cell rail, identical connector pinout, and the same SMBus communication protocol for BMS data. The same pack works across all variants without any adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack on an Inspiron M4010 and monitored BMS communication via SMBus. The cell reported correct voltage, state-of-charge, and temperature readings to the EC from the first connection. Charge acceptance held steady at the full 6600mAh rating.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle on the Inspiron 14V:\u003c\/strong\u003e\n    After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap. Skip this step and the fuel gauge IC will carry stale calibration data from the old pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Inspiron 14V shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe EC maps the old cell's discharge curve against incoming voltage readings. A new cell with a different internal resistance profile hits what the EC reads as a voltage cliff under combined CPU and display load — triggering shutdown well before actual depletion. This is not a faulty pack. Running two to three full discharge-and-charge cycles allows the fuel gauge IC to re-map the actual curve against the new cell chemistry. After calibration, the shutdown threshold drops back to the correct low-voltage cutoff near 10.8V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting wrong Wh rating after installing this pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Wh value displayed in BIOS and Dell Power Manager reads from EEPROM data embedded in the pack, not from live cell measurement. If the figure shown differs from 73.26Wh, the EEPROM rated value reflects factory cell tolerances rather than a calibration error or incompatibility. Actual charge capacity is not affected. To confirm real capacity, run a full cycle and check the mWh figure in HWiNFO64 — it should land within 3–5% of 73,260mWh after two calibration cycles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409808490586,"sku":"BWCS-DE4020HB-1","price":129.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409808523354,"sku":"BWCS-DE4020HB-2","price":148.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409808556122,"sku":"BWCS-DE4020HB-3","price":164.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DE4020HB-1.webp?v=1779580971","url":"https:\/\/batteryweb.com\/products\/dell-inspiron-14v-replacement-battery-111v-6600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}