{"product_id":"gateway-ns41i-replacement-battery-111v-8800mah-li-ion","title":"Gateway NS41I 11.1V Replacement Battery 8800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGateway NS41I \/ NV4900 Series — 11.1V Li-ion Replacement Battery (AS10D31)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 8800mAh (97.68Wh) Li-ion battery for the Gateway NS41I, NS51I, NV4900, NV49C, and over 79 additional models in this Acer\/Gateway notebook family. It replaces OEM part numbers including AS10D31, AS10D41, AS10D51, AS10D71, and BT.00607.125, among others. The physical dimensions are 269.80 × 54.40 × 42.00mm — confirm your bay clearance before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNS\/NV platform compatibility:\u003c\/strong\u003e\n    These Gateway NS and NV models share the same 11.1V three-cell-series architecture, connector pinout, and BMS communication protocol. That is why one cell pack covers such a wide range of chassis — the EEPROM handshake and charge termination logic are identical across this generation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on an NS-series board and confirmed the BMS accepted charge termination cleanly, reported state-of-charge without error flags, and held voltage above the 9.9V low-battery cutoff under sustained CPU and display load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after swap:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100% without interruption. 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 battery health as poor immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is an EEPROM mismatch — not a fault with the new cell. The Gateway BIOS reads learned cycle data and wear metrics stored from the old battery and compares them against the new cell's state-of-charge curve. When those values conflict, it flags the battery as degraded. Run one complete discharge-to-hibernate followed by an uninterrupted full charge. After two to three of these calibration cycles, the fuel gauge IC recalibrates against the new cell and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down suddenly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell cannot sustain voltage under combined CPU and display load — the actual cell voltage drops below the BMS cutoff threshold even though the OS fuel gauge still shows charge remaining. The fuel gauge IC is reading a capacity estimate, not live cell voltage, so the two values diverge under high draw. To verify, watch the battery voltage readout in HWMonitor during a stress test — if voltage sags below 10.0V under load, the cell is hitting the BMS floor. Allow the new cell to complete two full calibration cycles before concluding the cell is at fault; the fuel gauge recalibrates across those cycles and the early shutdown behaviour typically resolves.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409800101978,"sku":"BWCS-AC4551DB-1","price":128.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409800134746,"sku":"BWCS-AC4551DB-2","price":147.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409800167514,"sku":"BWCS-AC4551DB-3","price":161.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AC4551DB-1.webp?v=1779580971","url":"https:\/\/batteryweb.com\/products\/gateway-ns41i-replacement-battery-111v-8800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}