{"product_id":"medion-akoya-e6416-replacement-battery-152v-2600mah-li-ion","title":"Medion Akoya E6416 Replacement Battery A41-D15 15.2V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMedion Akoya E6416 Series — 15.2V Li-ion Replacement Battery (A41-D15)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 15.2V Li-ion battery rated at 2600mAh (39.52Wh), built to fit the Medion Akoya E6416 and related E6400-series notebooks. OEM part numbers A41-D15, A31-D15, A32-D15, and A42-D15 all cross to this cell. Confirmed fit also covers the Akoya E6422, E6415, and E6411.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAkoya E6400-series compatibility:\u003c\/strong\u003e\n    These models share the same 15.2V four-cell Li-ion architecture, connector pinout, and BMS handshake protocol. One cell covers the entire platform without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on an E6416 unit. The BMS negotiated correctly with the BIOS on first boot, charge current ramped as expected, and the protection circuit triggered cleanly at low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on Akoya notebooks:\u003c\/strong\u003e\n    After fitting this cell, run the laptop down fully until it hibernates, then charge uninterrupted to 100% without using the machine. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity, clearing 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\"\u003eWhy the Akoya E6416 BIOS reports poor battery health right after a new cell install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS stores the previous battery's EEPROM data — cycle count, state-of-health, and rated capacity — and compares it against the new cell on every boot. A fresh cell with zero cycles reads as mismatched against that stored profile, so the BIOS flags it as degraded. This is a firmware interpretation issue, not a fault with the replacement cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites the learn cycle data and clears the warning. After two or three full cycles the health indicator will reflect the actual state of the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAkoya E6416 shutting down unexpectedly while the gauge still shows 20–30% charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's discharge curve. The IC is still using voltage-to-capacity mapping from the old, degraded cell, so it misreads the remaining charge. Under full CPU and display load the new cell hits a voltage cliff the old map did not predict, and the BIOS cuts power before the gauge reaches zero. Run two complete discharge-to-hibernate and full-recharge cycles without interrupting the charge. By the second cycle the fuel gauge IC recalibrates its curve, and the reported percentage will align with actual cell voltage — typically stabilising above 3.2V per cell at the 15% mark.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409696194650,"sku":"BWCS-MDE641ND-1","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409696227418,"sku":"BWCS-MDE641ND-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409696260186,"sku":"BWCS-MDE641ND-3","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MDE641ND-1.webp?v=1779580473","url":"https:\/\/batteryweb.com\/products\/medion-akoya-e6416-replacement-battery-152v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}