About this replacement
HP Envy 14-V000 / 14-U000 Series — 14.4V Li-ion Replacement Battery (VI04)
This is a 14.4V, 2200mAh (31.68Wh) Li-ion battery for the HP Envy 14-V000, 14-V000v099, 14-U000, and 14-U099 series notebooks. It fits by matching the VI04 battery platform used across these Envy models. Cross-references include HSTNN-DB6K, HSTNN-LB6K, 756479-421, and 756745-001 among others.
- VI04 platform fit: The Envy 14-V000 and 14-U000 lines share the same 14.4V four-cell connector layout and BMS handshake protocol under the VI04 designation. Same voltage rail, same pin-out — no adapter or modification needed.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the VI04 platform. The BMS communicated correctly with the host system, charge termination triggered at the expected voltage ceiling, and no fault codes were thrown during load transitions.
- Post-install calibration on Envy notebooks: After fitting, run the laptop on battery until it hibernates from low charge, then charge uninterrupted to 100% without using the laptop. This resets the BIOS battery learn cycle and clears the inaccurate health warning that almost always appears after a cell swap on this platform.
BIOS reporting poor battery health immediately after replacement
The HP BIOS reads EEPROM data embedded in the battery pack, not live cell voltage alone. When a new cell goes in, the stored cycle count and health history from the old EEPROM doesn't match the new cell's actual condition — so the system flags it as degraded. This is a data mismatch, not a fault with the replacement. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% triggers the BIOS learn cycle and rewrites the health estimate against the new cell's real behaviour. After two to three calibration cycles, the health readout stabilises.
Laptop shuts down at 20–30% charge shown on screen
This happens when the fuel gauge IC hasn't calibrated to the new cell yet. The gauge was trained on the old cell's discharge curve, so it misjudges the voltage cliff — the point where cell voltage drops sharply under load from the CPU and display together. The laptop interprets that sudden sag as critically low and triggers a hard shutdown before the percentage shown reaches zero. Fix this by completing two full discharge-to-hibernate cycles with a continuous charge back to 100% each time. After the second cycle, the fuel gauge re-maps the curve and the reported percentage aligns with actual remaining capacity.