{"product_id":"wooking-jiasha-st-pro-replacement-battery-77v-4650mah-li-polymer","title":"Wooking Jiasha ST Pro Replacement Battery 7.7V 4650mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWooking Jiasha ST Pro — 7.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.7V, 4650mAh (35.81Wh) lithium-polymer cell for the Wooking Jiasha ST Pro laptop. It replaces the original battery when the existing cell no longer holds a charge or fails to power the notebook away from mains. Dimensions are 249.60 x 49.10 x 5.00mm — match these against your current cell before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eJiasha ST Pro platform fit:\u003c\/strong\u003e\n    The Jiasha ST Pro uses a slim Li-Polymer pack at 7.7V to stay within the notebook's thermal and physical envelope. This cell matches that voltage rail and physical footprint so the BMS handshake completes without errors on first boot.\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 Jiasha ST Pro unit. The BMS accepted the new cell without fault flags, and charge current tapered correctly in the CV phase above 8.2V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration for the Jiasha ST Pro:\u003c\/strong\u003e\n    After fitting, run the battery down until the laptop hibernates on low-voltage cutoff, then charge it uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning the firmware throws after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting the new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Jiasha ST Pro BIOS reads health data stored in the battery's EEPROM. A fresh replacement cell carries factory EEPROM values that don't match the charge history the BIOS expects, so it flags the battery as degraded even though the cell is new. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the firmware enough data to recalibrate. After two to three cycles, the health status corrects itself in both the BIOS and the OS battery panel.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't been calibrated against the new cell yet. The displayed percentage is based on stale data, so the laptop thinks it has more charge than the cell can actually sustain under full CPU and display load. Voltage drops faster than the gauge predicts and the BMS triggers a hard cutoff to protect the cell. Complete two full discharge-to-hibernate and charge-to-100% cycles — the fuel gauge IC tracks the actual voltage curve of the new cell and the shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409515708506,"sku":"BWCS-THM240NB-1","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409515741274,"sku":"BWCS-THM240NB-2","price":78.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409515774042,"sku":"BWCS-THM240NB-3","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THM240NB_1.webp?v=1779579871","url":"https:\/\/batteryweb.com\/products\/wooking-jiasha-st-pro-replacement-battery-77v-4650mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}