Dell Latitude 7330 Rugged Compatible Battery 11.4V 4400mAh

Dell Latitude 7330 Rugged — 11.4V Li-ion Replacement Battery (XVJNP / 6JRCP)

This is a 11.4V, 4400mAh (50.16Wh) lithium-ion replacement battery for the Dell Latitude 7330 Rugged and Latitude 5430 Rugged. Both are rugged-class notebooks used in field, industrial, and public safety environments where battery failure has real consequences. OEM part numbers XVJNP and 6JRCP cross-reference directly to this cell.

• Latitude 7330 and 5430 Rugged compatibility: Dell uses the same 11.4V three-cell Li-ion architecture and connector pinout across both Rugged platforms. The BMS handshake uses identical EEPROM identifiers, so one replacement cell covers both models without modification.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on a Latitude 7330 Rugged. The BMS authenticated without fault codes, charge current stepped down correctly at the 80% threshold, and the cell reached 50.16Wh confirmed on a calibrated load tester.
• Post-install calibration on Rugged Latitude units: After fitting this battery, run the laptop down to hibernate cutoff under normal use — do not force-shutdown — then charge uninterrupted to 100%. This triggers Dell's BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting battery health as poor after fitting a new cell

Dell's BIOS reads stored cycle count, health percentage, and rated Wh from EEPROM data embedded in the battery controller. A new cell ships with EEPROM values that don't yet match the BIOS's learned baseline for the old pack. This mismatch triggers a "Battery Health is Poor" or "Consider Replacing" warning even on a brand-new cell. Run one full discharge-to-hibernate and uninterrupted full charge cycle — the BIOS learn cycle overwrites the stale baseline and the warning clears.

Latitude shutting down at 20–30% shown on the fuel gauge

This is a voltage cliff issue, not a capacity issue. Under combined CPU and display load, cell voltage drops faster than the fuel gauge IC can recalculate — the laptop hits the low-voltage cutoff before the displayed percentage reaches zero. The fuel gauge IC needs two to three full calibration cycles against the new cell before its discharge curve model is accurate. After three complete discharge-to-hibernate and full-charge cycles, the shutdown point should align with the gauge reading below 10%.