Dell Inspiron 5323 VOXTF Replacement Battery 14.8V 3300mAh

Dell Inspiron 5323 / Vostro V3360 — 14.8V Li-ion Replacement Battery (VOXTF)

This 14.8V, 3300mAh (48.84Wh) Li-ion battery replaces the original VOXTF cell in the Dell Inspiron 5323, Inspiron 13z-5323, Vostro V3360, and Vostro 15-3549D-1528B, along with over ten additional compatible models. It matches the OEM connector, pin-out, and BMS handshake required by Dell's power management firmware. Cross-reference OEM part numbers VOXTF, TRDF3, TKN25, RU485, or 0V0XTF to confirm fit before ordering.

• Inspiron 5323 and Vostro 3360 platform compatibility: These models share a common 14.8V four-cell architecture and the same physical connector latch. The BMS on each uses identical EEPROM communication protocols, so one cell satisfies the firmware handshake across the entire platform without modification.
• Bench tested on actual hardware: We cycled this cell on an Inspiron 5323 chassis. The BMS accepted the handshake on first connection, the BIOS registered the cell as healthy, and charge current stepped down correctly through constant-current and constant-voltage phases without fault codes.
• Post-install calibration on Dell firmware: After fitting this cell, run one full discharge to hibernate cutoff, then charge uninterrupted to 100% without using the laptop. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on Dell's firmware.

BIOS reporting battery health as poor immediately after replacement

Dell's BIOS reads health data from the EEPROM on the old cell and writes a cached profile it compares against the new one. A freshly installed cell has no charge history in that cache, so the firmware flags it as degraded even when the cell is brand new. This is a firmware-side artefact, not a fault with the battery. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — after that cycle the BIOS recalibrates and the warning clears.

Laptop shutting down at 20–30% remaining after battery swap

The fuel gauge IC on the motherboard estimates remaining capacity using a model built around the old cell's voltage-discharge curve. A new cell has a different curve until several calibration cycles are completed, causing the IC to hit what it calculates as the voltage cliff while the cell still has real charge left. The result is an abrupt shutdown well above 0% shown. Run two to three full discharge-to-hibernate and full-charge cycles to let the fuel gauge IC re-map against the new cell's actual curve. After calibration, the shutdown threshold drops back to the correct low-voltage cutoff near 3.0V per cell.