{"product_id":"medion-erazer-x7615-replacement-battery-114v-5400mah-li-polymer","title":"Medion Erazer X7615 Compatible Battery 11.4V 5400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMedion Erazer X7615 \/ X7613 — 11.4V Li-Polymer Replacement Battery (BTY-L76)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.4V, 5400mAh (61.56Wh) Li-Polymer battery for the Medion Erazer X7615 and X7613 gaming laptops. It replaces OEM part BTY-L76 and connects directly to the existing battery bay without modification. Fit and connector alignment were confirmed against the original cell dimensions: 253.73 x 120.50 x 7.90mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eErazer X7615 and X7613 compatibility:\u003c\/strong\u003e\n    Both models run the same 11.4V three-cell Li-Polymer pack with identical connector pinout and BMS communication protocol. The BTY-L76 part number covers the full production run of both machines — there is no mid-cycle revision that changes the battery interface.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge, discharge, and BMS handshake verification on the Erazer platform. The BMS accepted the cell, reported state-of-charge correctly after calibration cycles, and held voltage within spec under sustained CPU and GPU load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle reset for Erazer BIOS:\u003c\/strong\u003e\n    After installing, run the laptop down to hibernate-cutoff on battery only, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell 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 battery health as poor immediately after fitting the BTY-L76\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Erazer BIOS reads EEPROM data stored by the previous cell and flags a health mismatch when a new pack is detected. This is not a fault with the replacement — it is a stale reference the firmware held over from the old battery. Running one full discharge to hibernate followed by an uninterrupted charge to 100% triggers the learn cycle and rewrites the BIOS reference point. After one or two cycles the health indicator returns to normal and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eErazer shutting down abruptly while the OS 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 actual voltage curve. The gauge estimates remaining charge using the old cell's profile, so the displayed percentage is wrong. Under full gaming load — CPU boost plus display — voltage drops faster than the uncalibrated gauge predicts and the battery hits the low-voltage cutoff before the OS registers it. Run two full discharge-to-hibernate and charge-to-100% cycles to let the fuel gauge IC map the new cell, and the cutoff will align with the displayed percentage at or below 5%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409725947994,"sku":"BWCS-MRS700NB-1","price":113.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409725980762,"sku":"BWCS-MRS700NB-2","price":129.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409726013530,"sku":"BWCS-MRS700NB-3","price":141.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MRS700NB-1.webp?v=1779580558","url":"https:\/\/batteryweb.com\/products\/medion-erazer-x7615-replacement-battery-114v-5400mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}