{"product_id":"compaq-presario-x1071ap-dq977a-replacement-battery-148v-4400mah-li-ion","title":"Compaq Presario X1071AP 14.8V Replacement Battery 337607-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCompaq Presario X1071AP Series — 14.8V Li-ion Replacement Battery (337607-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 4400mAh Li-ion battery for the Compaq Presario X1000 and X1200 notebook series, including the X1071AP-DQ977A, X1098AP-DR828A, X1210US, X1237AP, and over 300 additional Presario models. It replaces OEM part numbers 337607-001, 336962-001, PP2082P, 337607-002, and PP2080. Capacity is 65.12Wh — identical to the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePresario X1000 and X1200 platform fit:\u003c\/strong\u003e\n    These Presario notebooks share a common battery bay format, connector pinout, and BMS handshake protocol across the X1000 and X1200 chassis generations. The same 14.8V rail and four-pin communication line runs across all affected models, which is why one cell covers hundreds of SKUs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a Presario X1200-series unit and confirmed the BMS negotiated correctly at first contact — no trip, no false fault flag. Charge acceptance held across three full cycles without the controller throttling current prematurely.\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 hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle 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 X1000 BIOS reports poor battery health after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Presario BIOS reads health data from the battery's EEPROM — a small memory chip that stores charge cycle count, rated capacity, and manufacture date. When a new cell arrives, that EEPROM data does not match the wear history the BIOS expects from the old pack. The controller flags this mismatch as degraded health, even on a fresh cell. Running one complete discharge-to-hibernate then a full uninterrupted charge forces the BIOS to rewrite its reference data against the new cell's actual readings. After that cycle, the health indicator normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePresario shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated its discharge curve against the new cell's chemistry. The gauge predicts remaining capacity using data from the old, degraded pack — it calls 20–30% as the voltage floor because that is where the old cell used to collapse. Under full CPU and display load, the laptop hits what it thinks is empty and cuts power. The fix is a full calibration cycle: discharge fully until hibernate triggers, then charge uninterrupted to 100%. Repeat once more if the gauge still reads inaccurately — two cycles typically bring it within 5% of actual remaining voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43411620528218,"sku":"BWCS-CNX7000-1","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43411620560986,"sku":"BWCS-CNX7000-2","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43411620593754,"sku":"BWCS-CNX7000-3","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CNX7000-1.webp?v=1779581402","url":"https:\/\/batteryweb.com\/products\/compaq-presario-x1071ap-dq977a-replacement-battery-148v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}