About this replacement
LG P430 / P530 Xnote Series — 11.1V Li-ion Replacement Battery (EAC61679004)
This is a 11.1V, 5200mAh (57.72Wh) Li-ion battery for the LG Xnote P430 and P530 laptops. It cross-references OEM part numbers EAC61679004, GC02001H400, LB3211LK, and LB6211LK. If your original battery no longer holds a charge or the laptop dies under load, this cell is the direct swap.
- P430 and P530 platform fit: Both notebooks share the same battery bay geometry, connector pinout, and BMS handshake protocol — that is why a single cell covers both. The EEPROM in this battery carries the correct Wh rating so the LG BIOS recognises it without flags.
- Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on a P430 chassis. The BMS communicated correctly, the BIOS reported accurate state-of-charge, and no protection cutoff triggered during sustained CPU and display load.
- Post-install calibration for Xnote P-series: After fitting this battery, run the laptop on battery power until it hibernates at low charge, then charge uninterrupted to 100% without interruption. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap.
BIOS reporting poor battery health immediately after fitting a new cell
The LG Xnote BIOS reads health data from the battery's EEPROM, not from live cell voltage. When you swap cells, the BIOS compares the new cell's EEPROM data against the discharge history stored from the old battery. The mismatch triggers a "poor health" or "replace battery" flag even though the new cell is fully functional. One complete discharge-to-hibernate followed by an uninterrupted full charge clears the stored history and resets the learn cycle correctly.
Laptop shuts down abruptly when the fuel gauge still shows 20–30%
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual capacity curve. The IC uses stored data from the old, degraded cell to predict the voltage cliff, so it underestimates how quickly the new cell will drop under combined CPU and display load. The result is a sudden shutdown that looks like a fault but is actually a calibration gap. Run two full discharge-to-hibernate and full-recharge cycles — after the second cycle the gauge IC recalibrates and the remaining percentage readings stabilise.