{"product_id":"hasee-k650d-i5d3-replacement-battery-111v-4400mah-li-ion","title":"Hasee K650D-i5D3 Replacement Battery 11.1V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHasee K650D-i5D3 \/ K670-G4 Series — 11.1V Li-ion Replacement Battery (6-87-W650-4E42)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 11.1V 4400mAh (48.84Wh) Li-ion cell replacing part number 6-87-W650-4E42 in Hasee notebooks. It fits the K650D-i5D3, K650D-i7D3, K670-G4, K710C-i7 D1, and over 60 additional Hasee models sharing the same battery bay and connector. Install it when the original cell no longer holds voltage under load or fails BIOS detection entirely.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK650D and K670 series compatibility:\u003c\/strong\u003e\n    These models share the same 11.1V three-cell rail, physical connector pinout, and BMS handshake protocol — the reason one replacement covers the full range. The EEPROM on this cell carries the correct capacity and chemistry data the Hasee EC firmware expects at boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a K650D-i5D3 unit. The BMS initialised correctly on first boot, the EC reported full capacity without error flags, and charge current transitioned from bulk to taper at the expected threshold with no fault codes logged.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBIOS learn cycle after install:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to the hibernate-cutoff point, then charge uninterrupted to 100%. This resets the Hasee BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap — skipping this step leaves the fuel gauge reading stale data from the old cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% shown after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC still holds calibration data from the degraded original cell. The new cell has a steeper discharge curve than what the EC expects, so it reads a false floor and triggers a shutdown before the cell is actually depleted. The fix is a full calibration cycle: drain the battery until the system hibernates, then charge to 100% without interruption. After two to three cycles the EC recalibrates against the new cell's actual voltage curve and the cutoff point corrects itself. Target a resting voltage of 12.4–12.5V at full charge to confirm the cell is calibrating correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting new battery Wh rating as incorrect or mismatched\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Hasee EC reads Wh data from the cell's EEPROM at POST, and the value it reports may differ slightly from the rated 48.84Wh depending on how the firmware rounds chemistry data. This is an EEPROM versus actual-chemistry reporting difference — not a fault with the cell itself. Check the voltage under load instead: a healthy cell holds above 10.5V during full CPU and display draw. If the system still flags a health warning after two full learn cycles, re-enter BIOS and reset the battery statistics from the power management menu.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409669128282,"sku":"BWCS-CLW650NB-1","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409669161050,"sku":"BWCS-CLW650NB-2","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409669193818,"sku":"BWCS-CLW650NB-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CLW650NB-1.webp?v=1779580338","url":"https:\/\/batteryweb.com\/products\/hasee-k650d-i5d3-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}