About this replacement
HP Pavilion X360 11.6 — 7.6V Li-ion Replacement Battery (HV02XL)
This is a 7.6V, 4000mAh (30.4Wh) Li-ion replacement battery for the HP Pavilion X360 11.6 convertible laptop. It fits the Pavilion X360 11-K series, including the 11-K064NR and 11-K013CL, along with 157 additional variants. It replaces OEM part numbers HV02XL, HSTNN-LB6P, TPN-Q164, TPN-W112, 796219-421, 796355-005, and 796219-541.
- Pavilion X360 11-K series compatibility: All models in this line share the same 7.6V dual-cell architecture, identical BMS handshake protocol, and the same physical connector pinout — which is why one battery covers the full 11-K range despite regional SKU differences.
- Bench tested on actual hardware: We ran this cell on a Pavilion X360 11-K unit. The BMS accepted the handshake cleanly, charge negotiation stepped through the expected CC/CV phases, and the protection circuit tripped correctly at low-voltage cutoff without requiring a manual reset.
- BIOS learn cycle after installation: After fitting this cell, 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 after every cell swap on this platform.
Why the Pavilion X360 reports poor battery health immediately after a cell swap
The HP EC firmware stores charge history and cycle count in EEPROM on the old battery pack. When a new cell goes in, the BIOS reads no prior data and flags the battery as unknown or degraded. This is a firmware state problem, not a fault with the new cell. Running the full discharge-to-hibernate then uninterrupted charge-to-100% sequence gives the EC enough data to recalculate health accurately. After one or two full cycles, the health indicator should update to normal.
Pavilion X360 shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual chemistry. The percentage shown is based on stale voltage-to-capacity mapping from the old pack. Under full CPU plus display load — common when the X360 is used flat as a tablet — voltage drops faster than the gauge expects, triggering an emergency shutdown before the displayed percentage reaches zero. Run two full discharge and charge cycles without interruption and the fuel gauge IC will recalibrate its curve to match the new cell at 3.0V per cell cutoff.