About this replacement
Asus Q504UA-BHI5T13 / ZenBook Flip UX560UA Series — 15.2V Li-Polymer Replacement Battery (B41N1532)
This is a 15.2V, 3100mAh (47.12Wh) Li-Polymer battery for the Asus Q504UA-BHI5T13 and ZenBook Flip UX560UA convertible laptops. It replaces OEM part numbers B41N1532 and 0B200-02010100. The battery mounts inside the base chassis and reconnects via the original ribbon-style flat connector.
- Q504UA and UX560UA platform fit: Both the VivoBook Q504UA and ZenBook Flip UX560UA share the same 15.2V four-cell battery rail, connector pinout, and BMS handshake protocol — which is why a single part number covers both lines.
- Bench tested on actual hardware: We ran this cell through charge-discharge cycles on the Q504UA platform. The BMS communicated state-of-charge correctly to the EC, and charging terminated cleanly at full capacity without false-positive fault flags.
- First-cycle calibration after install: After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears in MyASUS or Windows after every cell swap.
Why the Q504UA shuts down at 20–30% after a battery swap
The fuel gauge IC on this platform stores a discharge curve mapped to the original cell's chemistry. When a new cell is installed, that stored curve no longer matches actual cell voltage under load. Under combined CPU and display draw, the new cell's voltage drops faster than the old curve predicts, and the EC triggers an emergency shutdown before the gauge reaches zero. Running two full discharge-to-hibernate cycles forces the fuel gauge IC to recalibrate against the new cell's actual voltage profile. After calibration, shutdowns at false low percentages stop.
BIOS reporting the replacement battery Wh rating as wrong or unknown
The Wh figure shown in BIOS and Windows comes from EEPROM data embedded in the battery's protection circuit, not from a live measurement. Some aftermarket cells ship with EEPROM values that differ from the rated spec on the label, which causes BIOS to display a mismatched or "unknown" capacity. This is an EEPROM reporting difference — it does not affect actual charge capacity or cycle behaviour. Confirm real charge performance by running the calibration cycle above and checking the mWh figure in Windows Battery Report after two full cycles.