{"product_id":"clevo-n855hc-replacement-battery-111v-4400mah-li-ion","title":"Clevo N855HC 11.1V Replacement Battery 6-87-N850S-6E7","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eClevo N855HC \/ N857 Series — 11.1V Li-ion Replacement Battery (6-87-N850S-6E7)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh (48.84Wh) Li-ion battery built to the same electrical spec as the original cell in the Clevo N855HC, N857EK1, N857HK1, and N857EP6 notebooks. It uses OEM part numbers 6-87-N850S-6E7, 6-87-N850S-6U7, 6-87-N850S-6U71, and N850BAT-6. If your current cell no longer holds charge or the laptop runs only on AC power, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eN855HC and N857-series fit:\u003c\/strong\u003e\n    These models share the same 11.1V battery bus, six-cell connector pinout, and BMS handshake protocol — which is why one part number covers the full N850-platform family.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge-discharge cycles on the N855HC platform. The BMS communicated correctly over SMBus, reported accurate state-of-charge, and held the charge-termination threshold at the expected voltage without tripping a fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run the laptop unplugged until it hibernates at low-battery cutoff, 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.\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 N855HC BIOS reads health data stored in the battery's EEPROM, not from live cell measurements. When you swap cells, the EEPROM on the new battery carries factory-default values that don't match the laptop's stored charge history, so the firmware flags the battery as degraded before it has ever cycled. Running one complete discharge-to-hibernate followed by a full uninterrupted charge lets the fuel gauge IC write fresh calibration data. After two or three full cycles the health readout in the BIOS and in Windows typically normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on the meter\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage-cliff failure, not a gauge glitch. Under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track — the laptop hits the hardware undervoltage cutoff while the OS still shows charge remaining. It happens most often when the fuel gauge hasn't been calibrated to the new cell yet. Run the calibration cycle described above; if the shutdowns persist after three full cycles, check that the BIOS is not set to a custom low-battery threshold above 20% under Power Management settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409601396826,"sku":"BWCS-CLN855NB-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409601429594,"sku":"BWCS-CLN855NB-2","price":86.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409601462362,"sku":"BWCS-CLN855NB-3","price":95.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CLN855NB-1.webp?v=1779580170","url":"https:\/\/batteryweb.com\/products\/clevo-n855hc-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}