{"product_id":"highlander-hl-86-replacement-battery-148v-4400mah-li-ion","title":"HIGHLANDER HL-86 Replacement Battery 14.8V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHIGHLANDER HL-86 \/ Gericom AJP 8640 — 14.8V Li-ion Replacement Battery (442673400015)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 4400mAh (65.12Wh) lithium-ion battery for the HIGHLANDER HL-86 and Gericom\/AJP 8640 notebook computers. It replaces the original cell when capacity has faded to the point the laptop no longer holds a usable charge. Voltage and connector match the original spec directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHL-86 and 8640 platform compatibility:\u003c\/strong\u003e\n    Both the HIGHLANDER HL-86 and the Gericom\/AJP 8640 share the same battery bay dimensions, connector pinout, and 14.8V power rail. The BMS handshake is identical across all listed OEM part numbers, including 442673400003 through 442679900007.\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 and discharge cycles on a compatible HL-86 chassis. The BMS communicated correctly with the system, charge current tapered as expected at capacity, and no protection cutoffs triggered under sustained CPU and display load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle conditioning on the HL-86:\u003c\/strong\u003e\n    After fitting this battery, run the laptop on battery power until it drops to hibernate cutoff — do not manually shut it down early. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a 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 HL-86 shuts down at 20–30% charge shown\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still calibrated against the old, degraded cell. When the new cell reaches around 3.5V per cell under full CPU and display load, the voltage drops faster than the gauge expects — the laptop interprets this as a critical low-battery event and cuts power. It is not a fault with the replacement battery. Run two full discharge-to-hibernate, charge-to-100% cycles and the fuel gauge IC recalibrates against the new cell's actual voltage curve. After calibration, the reported percentage tracks accurately through the full charge range.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as \"poor\" or \"unknown\" after fitting new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads health data from EEPROM stored on the battery's protection circuit board. When a new cell is fitted, that EEPROM data does not match what the BIOS logged from the old battery, so it flags the status as unknown or poor. This is a data mismatch, not a hardware fault. To clear it, enter the BIOS battery learn mode if your HL-86 firmware supports it, or complete two full discharge-to-hibernate and charge-to-100% cycles. After the learn cycle completes, the BIOS health status should return to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410828394586,"sku":"BWCS-MT8630NB-1","price":80.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410828427354,"sku":"BWCS-MT8630NB-2","price":93.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410828460122,"sku":"BWCS-MT8630NB-3","price":104.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MT8630NB-big.webp?v=1779581286","url":"https:\/\/batteryweb.com\/products\/highlander-hl-86-replacement-battery-148v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}