{"product_id":"asus-padfone-x-mini-45-replacement-battery-38v-2000mah-li-ion","title":"Asus B11P1406 PadFone X Mini 4.5 Compatible Battery 3.8V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus PadFone X Mini 4.5 — 3.8V Li-ion Replacement Battery (B11P1406)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V 2000mAh Li-ion replacement battery for the Asus PadFone X Mini 4.5 and PadFone X Mini 4.5 4G smartphones, including models PF450CL and T005. It matches OEM part numbers B11P1406 and 0B200-01110000. Dimensions are 85.56 × 41.46 × 4.65mm — swap only if your original cell matches that footprint.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePadFone X Mini 4.5 and 4G variants:\u003c\/strong\u003e\n    The PF450CL and T005 share an identical battery bay, connector pinout, and BMS handshake requirement. All listed models pull from the same 3.8V rail with the same charge-termination voltage, so one cell covers the full group without any wiring or bracket modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and load on a PF450CL unit. The BMS accepted the charge handshake on the first connect, voltage held steady at 3.8V nominal, and the protection circuit triggered correctly at both overvoltage and undervoltage thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge reset:\u003c\/strong\u003e\n    After installing this cell, disable fast charging and run one full discharge-to-charge cycle before normal use. The fuel gauge IC on the PadFone X Mini calibrates its coulomb counter against the actual discharge curve — skipping this step leaves the IC mapping a new cell against the old cell's learned data, which causes percentage errors from day one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the PadFone X Mini after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC still holds calibration data from the degraded original cell. The new cell has a steeper voltage drop near the bottom of its discharge curve, so the phone's SoC hits a voltage floor the IC wasn't expecting and forces a hard shutdown before the display percentage reaches zero. It is not a fault with the replacement cell — it is a calibration mismatch. Run two full discharge-charge cycles without fast charging and the IC will relearn the curve. After that, shutdowns should stop above 5%.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePadFone X Mini not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells shipped or stored for extended periods can drop below 2.5V per cell, which triggers a BMS lockout — the protection circuit disconnects the cell to prevent damage and the phone shows no response at all. Plug into a wall charger, not a USB port, and leave it for 20–30 minutes without attempting to power on. Most BMS circuits on this cell will begin a trickle pre-charge at low voltage and release the lockout once the cell reaches approximately 3.0V, at which point the phone will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404200411226,"sku":"BWCS-AUT005SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404200443994,"sku":"BWCS-AUT005SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404200476762,"sku":"BWCS-AUT005SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUT005SL-1.webp?v=1779369288","url":"https:\/\/batteryweb.com\/products\/asus-padfone-x-mini-45-replacement-battery-38v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}