About this replacement
Compaq Evo N410C Series — 14.8V Li-ion Replacement Battery (292389-001)
This 14.8V Li-ion battery replaces the original pack in Compaq Evo N410C laptops, including the N410C-470039-399, -509, -584, and -679 configurations. Capacity is 2200mAh (32.56Wh), matching the original spec. OEM part numbers covered include 292389-001, 213282-001, 291693-001, 235596-001, 232593-B25, 293343-B25, and 231445-001.
- Evo N410C battery platform: All N410C variants in this cluster share the same 14.8V four-cell series configuration, connector pinout, and BMS communication protocol — that is why one cell covers the full range of sub-models listed.
- Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle and verified the BMS handshake. The protection circuit tripped correctly at low-voltage cutoff and accepted charge without issue from the N410C's onboard charging circuit.
- First-cycle calibration on the Evo N410C: After installing, discharge the laptop to hibernate cutoff under normal use — screen on, a background task running — then charge uninterrupted to 100%. This gives the BIOS fuel gauge IC a reference point against the new cell and clears the inaccurate health warning that appears after every cell swap.
Why the Evo N410C shuts down at 20–30% shown remaining
The N410C's fuel gauge reads state-of-charge based on a voltage curve mapped to the previous cell's age and internal resistance. A new cell has a steeper voltage cliff near depletion — the system reads 25% but the cell voltage drops below the BMS cutoff threshold faster than the gauge expects. The result is an abrupt shutdown with charge still showing on screen. One full calibration cycle — discharge to hibernate, full uninterrupted recharge — corrects the voltage-to-percentage mapping and eliminates the early cutoff.
BIOS reporting battery health as poor immediately after replacement
The Evo N410C reads battery health data from EEPROM fields written by the original cell, including cycle count and design capacity. A new cell ships with EEPROM values that differ from the aged pack the BIOS last learned, so Windows and the BIOS both flag health as unknown or poor on first boot. This is a calibration state, not a fault. Run one full discharge-to-hibernate and charge-to-100% cycle — the BIOS learn cycle rewrites its reference data against the new cell and clears the warning.