{"product_id":"compaq-presario-b1200-replacement-battery-144v-2200mah-li-ion","title":"Compaq Presario B1200 Replacement Battery 14.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCompaq Presario B1200 Series — 14.4V Li-ion Replacement Battery (454001-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.4V 2200mAh Li-ion cell replaces the original battery in the Compaq Presario B1200 notebook line. It fits the Presario B1200, B1202VU, B1223TU, B1255TU, and over 107 additional B1200-series variants. OEM cross-references include 447649-251, HSTNN-DB53, HSTNN-OB53, and 447649-321.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eB1200 series compatibility:\u003c\/strong\u003e\n    Every model in this line runs the same 14.4V four-cell architecture with an identical connector pinout and BMS communication protocol — one cell fits the full range 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 charge and discharge on a B1200-class board, confirmed the BMS handshake completed cleanly, and verified the protection circuit trips correctly at low-voltage cutoff without locking the pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBIOS learn cycle after install:\u003c\/strong\u003e\n    After fitting this cell, run the laptop down to hibernate cutoff on battery only — no AC — then charge uninterrupted to 100%. This forces the BIOS to relearn the cell's actual capacity range 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\"\u003eWhy the Presario B1200 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe B1200's BIOS retains the charge curve data from the old, degraded cell. When a new cell is installed, the fuel gauge IC still references that stale curve. Under full CPU and display load, the board sees a voltage that matches its old \"empty\" threshold and triggers an emergency shutdown — even though the new cell has capacity remaining. The fix is one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, which overwrites the stored curve. After two or three full cycles the reported percentage stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery as unknown or 0% capacity on first boot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the EEPROM data embedded in the replacement cell does not exactly match the Wh rating the BIOS logged for the original pack. The system flags the mismatch as an unrecognised battery rather than treating it as a fresh cell. Boot into the BIOS, navigate to the power or battery information screen, and confirm the cell is detected — if it shows 0% but is drawing charge current, the hardware connection is fine. Run the full learn cycle described above and the BIOS will rewrite its reference data against the new cell's actual output.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410863226970,"sku":"BWCS-HTB1200NB-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410863259738,"sku":"BWCS-HTB1200NB-2","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410863292506,"sku":"BWCS-HTB1200NB-3","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTB1200NB-1.webp?v=1779581403","url":"https:\/\/batteryweb.com\/products\/compaq-presario-b1200-replacement-battery-144v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}