{"product_id":"asus-ux32-replacement-battery-74v-6500mah-li-polymer","title":"Asus C23-UX32 Zenbook UX32 Replacement Battery 7.4V 6500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus Zenbook UX32 Series — 7.4V Li-Polymer Replacement Battery (C23-UX32)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V 6500mAh (48.1Wh) Li-Polymer replacement battery for the Asus Zenbook UX32 series and VivoBook U38N ultrabooks. It uses OEM part numbers C23-UX32, 0B200-00070100, and 0B200-00070000. The slim 8.46mm cell profile matches the thin chassis these models share.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUX32 and U38N platform fit:\u003c\/strong\u003e\n    These models share the same 7.4V two-cell Li-Polymer architecture, connector pinout, and BMS communication protocol — which is why one cell covers both the Zenbook Prime UX32A and the VivoBook U38N-C4004H variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a UX32 board and confirmed the BMS handshake completed without fault flags. The charge controller accepted the cell immediately and cycled through charge termination cleanly at 8.4V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after swap:\u003c\/strong\u003e\n    After fitting this battery, run the laptop down to hibernate cutoff under normal use, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that almost always appears after a cell swap on UX32 boards.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the UX32 BIOS reports poor battery health immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe UX32 firmware stores charge history and wear data from the old cell in its EEPROM-linked fuel gauge IC. When a new cell goes in, that stale data still reads as a degraded battery — even if the new cell is at full capacity. The BIOS health warning is not reflecting the new cell's condition; it is reflecting the old cell's history. Running one full discharge-to-hibernate then a full uninterrupted charge gives the fuel gauge IC enough data to overwrite the old cycle count and recalibrate against the new chemistry.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down suddenly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when a degraded cell cannot sustain voltage under combined CPU and display load — the cell hits a voltage cliff faster than the fuel gauge predicted. The OS percentage shown is based on a fuel gauge estimate, not a live voltage read, so the displayed number lags behind the actual cell state. If the replacement cell still cuts out at 20–30% after installation, the fuel gauge has not yet recalibrated against the new cell's discharge curve. Complete two full discharge-to-hibernate cycles and the cutoff should move back toward 5% or lower, consistent with the cell's rated 48.1Wh capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409793286234,"sku":"BWCS-AUX32NB-1","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409793319002,"sku":"BWCS-AUX32NB-2","price":137.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409793351770,"sku":"BWCS-AUX32NB-3","price":151.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUX32NB-1.webp?v=1779580872","url":"https:\/\/batteryweb.com\/products\/asus-ux32-replacement-battery-74v-6500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}