{"product_id":"compaq-pavilion-ze5512ap-dr222a-replacement-battery-148v-4400mah-li-ion","title":"Compaq Pavilion ZE5512AP 14.8V Replacement Battery 319411-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCompaq Pavilion ZE5512AP \/ OmniBook XE4500s — 14.8V Li-ion Replacement Battery (319411-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V 4400mAh (65.12Wh) Li-ion replacement battery for a wide range of Compaq Pavilion and OmniBook notebooks. Confirmed fit includes the Pavilion ZE5512AP-DR222A, OmniBook XE4500s-F4867HG, Pavilion ZE4910US-M033UA, and Pavilion XT118-F5861H among over a thousand verified models. OEM cross-references are 319411-001, 361742-001, and F4809A.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePavilion ZE \/ OmniBook XE4500s platform fit:\u003c\/strong\u003e\n    These models share a common 14.8V four-cell Li-ion architecture with the same connector pinout and BMS communication protocol. The fuel gauge IC and charge controller in the laptop handshake to this voltage rail directly — swapping a lower-voltage pack from another Compaq line will not work here.\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 ZE-series chassis. The BMS accepted the pack without error codes, charge termination triggered correctly at full voltage, and the protection circuit tripped cleanly at the low-voltage cutoff floor — no runaway, no false disconnect mid-draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle reset on ZE-series BIOS:\u003c\/strong\u003e\n    After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity 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 Pavilion ZE shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ZE-series BIOS tracks discharge curves from the previous cell and maps percentage readings against that old profile. When a new cell is installed, the fuel gauge IC is still referencing stale data, so the laptop's reported percentage drifts from actual cell voltage. Under full CPU plus display load, voltage drops faster than the outdated profile expects — the BMS sees it hit the hardware cutoff floor and triggers an immediate shutdown even though the gauge still shows charge remaining. Running two full calibration cycles corrects the mapping and eliminates the early cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS showing \"poor health\" or \"unknown battery\" straight out of the box\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the EEPROM data embedded in the replacement cell carries rated chemistry values that differ slightly from the original OEM cell's stored parameters — the BIOS reads those values on first boot and flags the mismatch as a fault. It is not a defective battery. Boot into the Compaq BIOS utility, clear any stored battery data if the option exists, then run a full discharge-to-hibernate followed by a complete uninterrupted charge. After one full learn cycle the health status resolves to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43411620036698,"sku":"BWCS-CP2100-1","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43411620069466,"sku":"BWCS-CP2100-2","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43411620102234,"sku":"BWCS-CP2100-3","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CP2100-1.webp?v=1779581402","url":"https:\/\/batteryweb.com\/products\/compaq-pavilion-ze5512ap-dr222a-replacement-battery-148v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}