{"product_id":"hp-probook-5220m-replacement-battery-148v-2200mah-li-ion","title":"HP ProBook 5220m Replacement Battery 14.8V 2200mAh 595669-721","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ProBook 5220m — 14.8V Li-ion Replacement Battery (595669-721)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 2200mAh Li-ion battery for the HP ProBook 5220m notebook. It replaces OEM part numbers 595669-721, 595669-741, BQ349AA, BQ351AA, FE04, FE06, and related HSTNN variants. Capacity matches the factory 32.56Wh specification listed in the product data.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProBook 5220m compatibility:\u003c\/strong\u003e\n    All OEM part numbers listed above share the same 14.8V rail, four-cell configuration, and BMS handshake protocol. The connector pinout and EEPROM communication format are identical across the FE04 and FE06 variants, so the same cell fits both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge and discharge cycle on a ProBook 5220m unit. The BMS authenticated without error, charge termination triggered correctly at capacity ceiling, and the system did not flag an unknown device alert on first boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the ProBook 5220m:\u003c\/strong\u003e\n    After installing, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This forces the ProBook's fuel gauge IC to re-learn the new cell's actual capacity curve and clears the inaccurate health warning that appears in HP Support Assistant after a cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ProBook 5220m shuts down at 20–30% remaining after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ProBook 5220m uses a fuel gauge IC that stores cell capacity data from the previous battery in non-volatile memory. After a swap, that stored data no longer matches the new cell's actual voltage-versus-capacity curve. Under full CPU and display load, the system hits a voltage cliff the old data did not predict, and the BIOS triggers an emergency shutdown before the displayed percentage reaches zero. Running two to three full calibration cycles — discharge to hibernate cutoff, full uninterrupted charge — rewrites the fuel gauge map to match the new cell and eliminates the premature cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHP BIOS reporting wrong Wh rating after replacement cell installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Wh figure shown in BIOS and HP Support Assistant is read from the battery's EEPROM, not measured in real time. On a new replacement cell, the EEPROM value reflects the rated chemistry spec, which can differ slightly from what the original OEM unit reported. This is a data mismatch, not a capacity fault. To confirm the cell is functioning correctly, check that pack voltage reads between 16.4V and 16.8V at full charge using a multimeter on the connector pins — if it does, the cell is healthy and the Wh discrepancy is cosmetic.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409813700698,"sku":"BWCS-HP5220NB-1","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409813733466,"sku":"BWCS-HP5220NB-2","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409813766234,"sku":"BWCS-HP5220NB-3","price":83.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HP5220NB-1.webp?v=1779581043","url":"https:\/\/batteryweb.com\/products\/hp-probook-5220m-replacement-battery-148v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}