{"product_id":"medion-md97860-replacement-battery-144v-4400mah-li-ion","title":"Medion BTP-D4BM 14.4V Notebook Replacement Battery 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMedion MD97860 \/ MD97288 Series — 14.4V Li-ion Replacement Battery (BTP-D4BM)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V 4400mAh Li-ion battery replacement for the Medion MD97860, MD97288, MD97447, MD98160, and 19 additional Medion notebook models. It matches the OEM voltage rail and connector footprint for the BTP-D4BM and BTP-D5BM part numbers. Capacity is 63.36Wh, sourced from product data — not estimated.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMD97860 \/ MD97288 platform fit:\u003c\/strong\u003e\n    These Medion notebooks share a common 14.4V battery bay, connector pinout, and BMS handshake protocol across the listed models. That shared architecture is why one cell covers the full range without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on a Medion platform, confirming the BMS accepted the new cell, reported state-of-charge correctly, and did not trigger a protection fault at either end of the voltage range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on Medion notebooks:\u003c\/strong\u003e\n    After fitting this battery, run the notebook down to hibernate cutoff on battery alone, then charge uninterrupted to 100% without use. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.\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 a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Medion BIOS reads health data stored in the battery's EEPROM, not live cell voltage. When you fit a new cell, that EEPROM carries no charge history, so the BIOS flags it as degraded or unknown. This is a data mismatch, not a fault with the cell. Run one full discharge-to-hibernate then a full uninterrupted charge — the BIOS learn cycle rewrites the health register against the new cell's actual performance. After one complete cycle, the health indicator normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts off at 20–30% charge shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC still holds calibration data from the old, degraded cell. It maps the new cell's voltage curve incorrectly, so what reads as 25% is actually near the cutoff threshold. The result is an abrupt shutdown rather than a low-battery warning. Force a full discharge to hibernate, let the system power off completely, then charge to 100% in one session — this forces the fuel gauge IC to recalibrate against the new cell's actual voltage profile, restoring accurate percentage readings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409823793242,"sku":"BWCS-MD9728NB-1","price":127.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409823826010,"sku":"BWCS-MD9728NB-2","price":146.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409823858778,"sku":"BWCS-MD9728NB-3","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MD9728NB-1.webp?v=1779581113","url":"https:\/\/batteryweb.com\/products\/medion-md97860-replacement-battery-144v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}