{"product_id":"gericom-supersonic-per4mance-m2-replacement-battery-148v-4400mah-li-ion","title":"Gericom SuperSonic Per4mance M2 Compatible Battery 14.8V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGericom SuperSonic Per4mance M2 — 14.8V Li-ion Replacement Battery (A44)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V, 4400mAh (65.12Wh) Li-ion battery replaces the original cell in the Gericom SuperSonic Per4mance M2 and related SuperSonic notebooks. It matches the OEM connector, terminal layout, and BMS handshake requirements for the A44 platform. Direct swap — no tools beyond a panel release clip.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSuperSonic Per4mance and Supersonic 1000 platform fit:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell Li-ion architecture, A44 connector pinout, and BMS communication protocol. One cell covers the full group without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a SuperSonic platform. The BMS handshake completed without fault codes, charge acceptance held at the rated 4400mAh, and the protection circuit triggered correctly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after install:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge until the laptop hibernates on its own — do not force shutdown. Then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the false \"poor 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 SuperSonic BIOS reports a new battery as \"poor health\" or \"unknown\"\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe SuperSonic platform stores battery health data in EEPROM on the original cell. When a new cell is installed, that EEPROM data is gone, and the BIOS flags the battery as degraded or unknown because it has no learned baseline. This is not a fault with the replacement cell — it is a calibration state. Running one full discharge-to-hibernate followed by an uninterrupted full charge gives the BIOS enough data to write a new baseline. After one to two full cycles, the health indicator returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts 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 has not yet calibrated against the new cell's actual voltage curve. The IC uses its old map and hits a voltage cliff earlier than the display percentage suggests, triggering a hard shutdown. It is not a defective cell. Run two to three full discharge and charge cycles — the fuel gauge IC rewrites its capacity map against real voltage readings from the new cell. After calibration, the displayed percentage and actual cutoff voltage align, and shutdowns at false-low readings stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410825445466,"sku":"BWCS-ADA440NB-1","price":82.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410825478234,"sku":"BWCS-ADA440NB-2","price":97.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410825511002,"sku":"BWCS-ADA440NB-3","price":107.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ADA440NB-1.webp?v=1779581286","url":"https:\/\/batteryweb.com\/products\/gericom-supersonic-per4mance-m2-replacement-battery-148v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}