{"product_id":"deviltech-fire-dt14-replacement-battery-111v-4400mah-li-ion","title":"Deviltech Fire DT14 Replacement Battery 11.1V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDeviltech Fire DT14 — 11.1V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V lithium-ion battery rated at 4400mAh (48.84Wh), built to fit the Deviltech Fire DT14 notebook. It restores portable power to a laptop that has lost battery capacity or carries a failed cell. Voltage and connector match the Fire DT14's original battery bay.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFire DT14 platform fit:\u003c\/strong\u003e\n    The Fire DT14 uses an 11.1V three-cell Li-ion configuration across its standard battery bay. This replacement matches that voltage rail and physical connector, so the motherboard recognises the pack without adapter modifications.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a notebook battery tester. The BMS held charge termination correctly at full voltage and maintained cell balance within spec across the pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Fire DT14:\u003c\/strong\u003e\n    After fitting this cell, run the laptop down to hibernate cutoff on battery alone — no sleep, no plugging in. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health flag that appears after every cell swap on this model.\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 the new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Fire DT14's BIOS reads health data stored in the old cell's EEPROM and compares it against the new cell's charge behaviour. On first boot, that data mismatch triggers a poor-health or degraded-battery warning even though the new cell is unused. This is not a fault with the replacement pack. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — most BIOS builds on this platform clear the warning after that single learn cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the Fire DT14 calibrates its discharge curve against the old cell's chemistry data. When a new cell is fitted, the IC's stored curve no longer matches actual cell voltage, so it misreads remaining capacity. Under combined CPU and display load, actual cell voltage drops faster than the gauge predicts, and the laptop cuts power before the displayed percentage reaches zero. This resolves after two to three full calibration cycles — discharge fully to hibernate each time, then charge uninterrupted. After those cycles the gauge IC aligns its curve to the new cell and shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409600774234,"sku":"BWCS-MSG400NB-1","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409600807002,"sku":"BWCS-MSG400NB-2","price":112.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409600839770,"sku":"BWCS-MSG400NB-3","price":125.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MSG400NB-1.webp?v=1779580191","url":"https:\/\/batteryweb.com\/products\/deviltech-fire-dt14-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}