{"product_id":"asus-s430uf-replacement-battery-1155v-3600mah-li-ion","title":"Asus VivoBook S430UF Compatible Battery B31N1732 11.55V 3600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus VivoBook S430UF Series — 11.55V Li-ion Replacement Battery (B31N1732)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 11.55V, 3600mAh (41.58Wh) Li-ion replacement battery for the Asus VivoBook S430UF, K430UF, V430UF, and S4300UF laptops. It fits the OEM socket and connector without modification. Order by part number B31N1732 or cross-reference 0B200-02960000 and 0B200-02960400 to confirm fitment before purchasing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS430 \/ K430 \/ V430 platform fitment:\u003c\/strong\u003e\n    These models share the same 11.55V three-cell architecture, battery connector pinout, and BMS handshake protocol — that is why a single part number covers the entire platform. The charge controller communicates with the same EEPROM register set across all 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 VivoBook S430UF under a mixed CPU and display load. The BMS held the charge curve cleanly from 0% to 100%, and the thermal protection tripped correctly above the rated cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install learn cycle on the S430 platform:\u003c\/strong\u003e\n    After installing, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that nearly always appears after a 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 VivoBook S430UF BIOS reports poor battery health after a new cell install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe S430UF BIOS reads health data from an EEPROM register on the battery's BMS board. When a new cell is installed, that register contains factory default values that do not match the laptop's charge history — the BIOS interprets this mismatch as a degraded battery. This is not a fault with the new cell. Running one complete discharge-to-hibernate and a full uninterrupted charge resets the learn cycle and writes fresh data into the register, clearing the warning on next boot.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eS430UF shutting down at 20–30% charge shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still calibrated to the old, degraded cell's voltage curve. A new cell holds voltage higher and longer, then drops steeply near depletion — the fuel gauge misreads that cliff and fires a shutdown before the percentage reaches zero. It is not a BMS fault or a compatibility issue. Run two full discharge-to-hibernate cycles followed by uninterrupted charges to 100% and the gauge IC will recalibrate to the new cell's curve, with the cutoff moving back below 5%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409686757466,"sku":"BWCS-AUR430NB-1","price":70.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409686790234,"sku":"BWCS-AUR430NB-2","price":82.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409686823002,"sku":"BWCS-AUR430NB-3","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUR430NB-1.webp?v=1779580399","url":"https:\/\/batteryweb.com\/products\/asus-s430uf-replacement-battery-1155v-3600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}