HP Pavilion DV6190 Replacement Battery 10.8V 4400mAh

HP Pavilion DV6190 Series — 10.8V Li-ion Replacement Battery (HSTNN-DB31)

This is a 10.8V, 4400mAh (47.52Wh) Li-ion battery for the HP Pavilion DV6190 and related DV6000 series notebooks. It fits models including the DV6190EU, DV6191EU, and DV6195EA, covering a wide spread of that generation. OEM part numbers HSTNN-DB31, HSTNN-IB31, HSTNN-W20C, and 417066-001 are all cross-compatible with this cell configuration.

• DV6000 platform compatibility: These DV6190-series models share the same 10.8V battery rail, connector pinout, and BMS handshake protocol across the platform. That consistency means one cell swap covers a broad range of Pavilion DV6000-generation units without modification.
• Bench tested on actual hardware: We ran this battery through charge and discharge cycles on DV6-class hardware and confirmed the BMS communicates correctly with the HP power controller — no false fault flags, no premature cutoff on a standard load profile.
• First-cycle conditioning on HP Pavilion notebooks: After fitting this battery, run the laptop on battery only until it hibernates at low charge, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap.

Why the DV6190 BIOS reports poor battery health after a cell swap

The HP Pavilion DV6190 reads battery health using EEPROM data stored on the old cell — not from live measurements of the new one. When a fresh battery goes in, the BIOS compares the new cell's reported capacity against the degraded baseline it has cached, which triggers a false "poor health" or "consider replacing" warning. This clears after one or two full discharge-to-hibernate and uninterrupted charge cycles. The BIOS battery learn cycle rewrites that cached data to reflect the actual capacity of the replacement cell.

Fuel gauge reading wildly inaccurate for the first few charge cycles

The DV6190's fuel gauge IC calibrates itself against the battery it has learned over time. Drop in a new cell and the IC is working from stale reference points, so percentage readings can jump, stall, or report 100% when the battery is nowhere near full. This is not a fault with the replacement battery — it is a calibration gap. Run two to three full discharge-to-hibernate and full-charge cycles and the fuel gauge IC will recalibrate against the new cell's actual charge curve. After the third cycle, percentage readings should stabilise to within a few points of actual capacity.