{"product_id":"advent-7093-replacement-battery-111v-6600mah-li-ion","title":"Advent 7093 Replacement Battery 11.1V 6600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAdvent 7093 \/ QT5500 — 11.1V Li-ion Replacement Battery (90-NFY6B1000Z)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 6600mAh Li-ion battery replaces the original cell in the Advent 7093 and QT5500 notebooks. It matches the OEM voltage rail, connector pinout, and BMS communication protocol for both models. Capacity is sourced from product data at 73.26Wh — not estimated from third-party listings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e7093 and QT5500 platform fit:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, 11.1V three-cell rail, and SMBus BMS handshake. The same connector and charge circuit apply across the entire platform, which is why one cell covers both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a live SMBus logger. The BMS negotiated correctly, charge termination triggered at the right cut-off voltage, and no fault codes were thrown during the full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after install:\u003c\/strong\u003e\n    After fitting this cell, run the laptop down to hibernate cut-off on battery power alone — no sleep, no hybrid sleep. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears 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\"\u003eBIOS reporting poor battery health immediately after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Advent 7093 BIOS reads health data stored in the battery's EEPROM, not from live cell measurements. When a new cell ships, its EEPROM cycle count and rated capacity values do not yet match what the BIOS expects to see from a fully calibrated pack. The firmware interprets the mismatch as degradation rather than a fresh cell. One complete discharge-to-hibernate followed by a full uninterrupted charge overwrites the learn cycle data and resolves the false warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly while the OS gauge still shows 20–30% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff failure — the cell voltage drops faster than the fuel gauge IC can track under combined CPU and display load. The fuel gauge IC uses a model calibrated against the old, degraded cell, so its percentage estimate lags behind real voltage. Under peak load the cell hits the BMS low-voltage cutoff before the gauge reaches 0%. Run two full discharge-and-charge calibration cycles so the fuel gauge IC rebuilds its capacity model against the new cell chemistry; the shutdowns stop once the model is accurate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410816925786,"sku":"BWCS-AUF3HB-1","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410816958554,"sku":"BWCS-AUF3HB-2","price":135.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410816991322,"sku":"BWCS-AUF3HB-3","price":148.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUF3HB-1.webp?v=1779581181","url":"https:\/\/batteryweb.com\/products\/advent-7093-replacement-battery-111v-6600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}