About this replacement
HP Pavilion 13-D Series — 11.4V Li-Polymer Replacement Battery (VR03XL)
This is an 11.4V, 3900mAh (44.46Wh) lithium-polymer replacement battery for the HP Pavilion 13-D ultrabook series. It fits the Pavilion 13-D023TU, 13-D024TU, 13-D025TU, and over 271 additional Pavilion 13-D variants. The OEM part numbers VR03XL, HSTNN-IB7E, TPN-C120, and 816497-1C1 all cross to this cell.
- Pavilion 13-D platform fit: Every Pavilion 13-D in this series runs the same 11.4V three-cell Li-Polymer architecture with a shared BMS handshake protocol. That common battery rail and connector spec is why one cell covers the full production run of this ultrabook line.
- Bench tested on actual hardware: We ran this cell on a Pavilion 13-D under combined CPU and display load. The BMS held the charge curve within spec and did not trip on load transitions. Charge termination cut cleanly at full capacity.
- Post-install calibration on HP Pavilion 13-D: After fitting this cell, 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 appears after every cell swap on this platform.
BIOS reporting battery health as poor immediately after replacement
The HP Pavilion 13-D reads EEPROM data embedded in the original battery cell to establish its health baseline. When a new cell goes in, the BIOS compares the fresh EEPROM against the charge history it accumulated with the old battery — the numbers do not match, so it flags poor health. This is not a fault with the replacement cell. One full discharge-to-hibernate followed by a complete uninterrupted charge to 100% gives the BIOS enough data to re-establish its learn cycle and clear the warning.
Pavilion 13-D shutting down at 20–30% charge shown on screen
This happens because the fuel gauge IC in the laptop is still calibrated to the old cell's voltage curve. The new cell hits a voltage cliff under combined CPU and display load that the uncalibrated gauge does not anticipate, so the system shuts off before the displayed percentage reaches zero. It is not a BMS fault — it is a measurement mismatch. Run two or three full discharge-to-charge cycles and the fuel gauge IC will recalibrate against the new cell's actual voltage profile. After calibration, shutdown should not occur above 5–7% remaining.