{"product_id":"dell-latitude-e4300-replacement-battery-111v-4400mah-li-ion","title":"Dell Latitude E4300 Replacement Battery 11.1V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell Latitude E4300 Series — 11.1V Li-ion Replacement Battery (312-0822)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh (48.84Wh) Li-ion battery for the Dell Latitude E4300, E4310, E4320, and E4400 notebooks. It replaces OEM part numbers including 312-0822, FM332, FM338, HW905, XX327, and XX337, among others. The cell fits the standard battery bay on all four Latitude models without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE4300 \/ E4310 \/ E4320 \/ E4400 compatibility:\u003c\/strong\u003e\n    All four Latitude models share the same 11.1V three-cell bus, connector pinout, and SMBus communication protocol. The BMS in this cell speaks the same data handshake Dell's EC expects, so BIOS recognises it as a valid battery rather than flagging an unknown device.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an E4300 under combined CPU and display load. The BMS held the voltage rail steady across discharge and tripped thermal protection at the expected threshold — no spurious shutdowns during the test.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on Dell Latitude:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on these Latitude models.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% shown on the E4300 and E4400\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops below the EC's safe-operating threshold before the fuel gauge reads zero. Under a full CPU plus display load, current draw spikes and a degraded or uncalibrated cell hits a voltage cliff — the EC cuts power instantly rather than letting the cell go into an unsafe state. On the E4300 and E4400, this cliff typically appears between 18% and 32% on the Windows battery meter. Running one full discharge-to-hibernate then a clean charge cycle gives the fuel gauge IC enough data to remap the curve correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting new battery health as \"poor\" immediately after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDell's BIOS reads health status from EEPROM data embedded in the battery's SMBus controller — it does not measure cell condition directly at first boot. When a new cell arrives with factory EEPROM defaults, the BIOS compares those values against the learn-cycle data it stored for the old battery and flags a mismatch as poor health. This is not a fault with the replacement cell. Run the full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, and the BIOS recalculates health against the new cell's actual charge profile — the warning clears after one or two completed cycles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410790416474,"sku":"BWCS-DE4300NB-1","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410790449242,"sku":"BWCS-DE4300NB-2","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410790482010,"sku":"BWCS-DE4300NB-3","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DE4300NB-1.webp?v=1779581092","url":"https:\/\/batteryweb.com\/products\/dell-latitude-e4300-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}