About this replacement
HP ENVY 14-3001TU Series — 14.8V Li-Polymer Replacement Battery (SL04XL)
This is a 14.8V, 3900mAh (57.72Wh) Li-Polymer replacement battery for the HP ENVY 14 Spectre ultrabook line. It fits the ENVY 14-3001TU, 14-3002TU, 14-3003TU, 14-3004TU, and over 40 additional ENVY 14 variants sharing the SL04XL platform. The OEM part numbers covered include SL04XL, 665054-171, TPN-Q105, and HSTNN-IB3J.
- ENVY 14 Spectre platform fit: These models share a four-cell Li-Polymer pack at 14.8V nominal with a common BMS handshake and identical 290.14 × 114.25 × 7.08mm footprint. Any variant in the ENVY 14-3000 lineup that originally shipped with SL04XL pulls from the same voltage rail and connector spec.
- Bench tested on actual hardware: We cycled this cell on an ENVY 14 Spectre chassis and confirmed BMS communication with the BIOS — the charge controller accepted the new cell, reported pack voltage correctly, and held a steady taper charge to 4.2V per cell without cutoff errors.
- First-cycle recalibration on ENVY 14: After installing, discharge the laptop fully to hibernate cutoff under normal load — don't force it. Then charge uninterrupted to 100% without using the machine. This single cycle resets the BIOS battery learn cycle and clears the false "poor health" or "replace battery" warning that almost always appears after a cell swap on this platform.
BIOS reporting poor battery health immediately after fitting the SL04XL
The ENVY 14 BIOS reads health data from EEPROM registers stored in the old battery pack — not from the new cell's actual charge state. When a new cell is installed, those registers are blank or mismatched, so the BIOS flags the battery as degraded before it has run a single cycle. This is not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the fuel gauge IC to write fresh calibration data. After that cycle, BIOS health reporting normalises.
Laptop shuts off at 20–30% remaining shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The displayed percentage is based on stale data — the cell hits a voltage cliff under combined CPU and display load before the gauge catches up. It is not a defective battery. Run two full discharge-to-hibernate cycles followed by full uninterrupted charges, and the gauge IC will map the correct cut-off point. After calibration, the laptop should sustain load down to approximately 11.1V pack voltage before shutdown.