{"product_id":"belinea-obook-4-replacement-battery-144v-4400mah-li-ion","title":"Belinea o.book 4 Compatible Battery 14.4V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBelinea o.book 4 \/ o.book 4.1 — 14.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.4V, 4400mAh (63.36Wh) Li-ion battery replaces the original pack in the Belinea o.book 4 and o.book 4.1 notebooks. It slots into the same bay and connects to the same charging circuit as the factory cell. If the original pack no longer holds a charge or the laptop cuts out under load, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eo.book 4 and 4.1 compatibility:\u003c\/strong\u003e\n    Both the o.book 4 and 4.1 share the same battery bay geometry, connector pinout, and 14.4V charging rail. One cell covers both models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge passes on the bench. The BMS engaged correctly at both ends — no false cutoff on charge, and the low-voltage protection tripped at the expected floor before cell damage could occur.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle reset on the o.book 4:\u003c\/strong\u003e\n    After fitting this cell, run the laptop on battery until it reaches hibernate cutoff, then charge uninterrupted to 100% without pulling the adapter. This gives the BIOS battery learn cycle a clean data set 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  \u003cp class=\"bpw-desc-p\"\u003eThe o.book 4 BIOS reads health data stored in the old pack's EEPROM, not live cell voltage. When a new cell goes in, the BIOS compares current readings against stale reference data from the previous pack and flags a mismatch as degraded health. This is a data conflict, not a cell fault. Running one full discharge-to-hibernate followed by an uninterrupted full charge forces the BIOS to rewrite its battery learn cycle against the new cell's actual capacity curve. After that cycle, the health indicator updates to reflect real cell condition.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't yet calibrated against the new cell's discharge curve. The IC inherited calibration data from the old, degraded pack and calculates 20–30% remaining at a voltage point that actually sits near the cell floor. Under full CPU and display load, the voltage drops sharply at that point and the system shuts down before the gauge reaches zero. Run two or three complete discharge-to-hibernate and full-charge cycles without interruption. By the third cycle the fuel gauge IC has enough real data to map the new cell accurately, and the premature shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409815928922,"sku":"BWCS-MSX320NP-1","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409815961690,"sku":"BWCS-MSX320NP-2","price":140.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409815994458,"sku":"BWCS-MSX320NP-3","price":153.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/batteryweb.com\/products\/belinea-obook-4-replacement-battery-144v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}