About this replacement
HP Pavilion dv9047EA — 14.4V Li-ion Replacement Battery (434674-001)
This is a 14.4V, 4400mAh (63.36Wh) lithium-ion battery for the HP Pavilion dv9000 series notebook. It fits the dv9047EA, dv9095EA, dv9219EA, dv9294EU, and over 229 additional dv9000-series variants. OEM cross-references include HSTNN-IB34, HSTNN-LB33, 432974-001, and 448007-001 among others.
- dv9000 series platform fit: These models share a common 14.4V battery rail, identical connector pinout, and the same BMS handshake protocol — so one cell pack covers the full dv9000 chassis generation without modification.
- Bench tested on actual hardware: We ran this cell on a dv9000-series unit and confirmed the BMS completed its handshake, the BIOS accepted the pack without an unknown-device flag, and charge cycling proceeded through all stages correctly.
- First-cycle calibration on the dv9047EA: After installing, run one full discharge until the laptop hibernates on its own, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that commonly appears after a cell swap on this platform.
BIOS reporting poor battery health immediately after replacement
The dv9047EA stores battery state data in EEPROM on the old pack. When a new cell is installed, the BIOS reads no historical data and flags the battery as degraded or unknown. This is not a fault with the replacement cell — it is a firmware artefact. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the BIOS enough cycle data to update its health register. After two to three complete cycles, the health status typically corrects itself.
Laptop shutting down at 20–30% charge shown on dv9000 series
This happens because the fuel gauge IC is still calibrated to the old cell's discharge curve. At high load — full CPU activity plus display brightness — the new cell's voltage drops faster than the gauge predicts, triggering a protective shutdown before the displayed percentage reaches zero. It is not a faulty cell. Run two full discharge cycles to let the fuel gauge IC map the new cell's actual voltage cliff. After calibration, shutdown should not occur above 5–8% on typical workloads.