{"product_id":"asus-chromebook-flip-c434-replacement-battery-1155v-4050mah-li-polymer","title":"Asus Chromebook Flip C434 Replacement Battery C31N1824 11.55V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus Chromebook Flip C434 — 11.55V Li-Polymer Replacement Battery (C31N1824)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 11.55V, 4050mAh Li-Polymer battery for the Asus Chromebook Flip C434 2-in-1 convertible. It replaces OEM part numbers C31N1824 and 0B200-03290000. It fits the C434TA series including AI0041, E10013, and AI0045 variants.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eC434TA series fitment:\u003c\/strong\u003e\n    All C434TA variants share the same 11.55V three-cell configuration, connector pinout, and BMS handshake protocol — which is why one battery covers the full model range. Voltage rails and charge termination logic are identical across these SKUs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a C434TA board and confirmed the BMS negotiated charge termination correctly at 100%, with no false low-voltage cutoffs across repeated discharge runs under combined CPU and display load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the C434:\u003c\/strong\u003e\n    After fitting, run the battery down until ChromeOS triggers hibernation — do not interrupt it. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears 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\"\u003eWhy the C434 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe C434's fuel gauge IC calibrates against the original cell's charge curve stored in EEPROM. When a new cell goes in, the IC is still reading against the old cell's data, so the voltage it measures at 20–30% doesn't match what it expects at that state-of-charge. The BMS interprets this mismatch as a voltage cliff and triggers shutdown as a protection event. Running two to three full discharge-to-hibernate cycles recalibrates the IC against the new cell's actual chemistry and eliminates the premature cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eChromeOS reporting battery health as \"Poor\" immediately after fitting\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe health percentage shown in ChromeOS diagnostics pulls from the EEPROM data the BMS carried over from the worn cell — it does not re-evaluate the new cell until a learn cycle completes. This means a brand-new cell can show 40–60% health on day one, which is a data read error, not a battery fault. Complete the full discharge-to-hibernate then uninterrupted charge sequence described above. After two full cycles, the reported health figure should reset to reflect the actual capacity of the new cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409615519834,"sku":"BWCS-AUC434NB-1","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409615552602,"sku":"BWCS-AUC434NB-2","price":120.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409615585370,"sku":"BWCS-AUC434NB-3","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUC434NB-1.webp?v=1779580214","url":"https:\/\/batteryweb.com\/products\/asus-chromebook-flip-c434-replacement-battery-1155v-4050mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}