Aorus 7 KB Replacement Battery 14.4V 2200mAh 6-87-NH50S-41C00

Aorus 7 KB Series — 14.4V Li-ion Replacement Battery (6-87-NH50S-41C00)

This is a 14.4V, 2200mAh (31.68Wh) Li-ion replacement battery for the Aorus 7 KB gaming laptop, including the 7 KB-7DE1130SH. It slots into the original battery bay and uses the same connector and BMS handshake as the factory cell. OEM part numbers 6-87-NH50S-41C00 and NH50BAT-4 both apply to this fitment.

• 7 KB and 7 KB-7DE1130SH fitment: Both models share the same 14.4V battery rail, four-cell configuration, and SMBus BMS handshake. The connector pinout and physical dimensions — 142.45 × 54.45 × 20.10mm — are identical across the run, so one cell covers the entire variant spread.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Aorus 7 KB platform. The BMS negotiated correctly, charge current stepped down at threshold as expected, and no overcurrent fault flags were thrown during a full load discharge.
• Post-install calibration for the Aorus 7 KB: After fitting, run one full discharge to hibernate cutoff, then charge uninterrupted to 100% without interrupting the session. This resets the BIOS battery learn cycle and clears the false poor-health warning the firmware triggers after every cell swap on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The Aorus 7 KB reads battery health data from EEPROM registers on the cell itself. A new cell carries factory EEPROM values that don't match the laptop's learned charge history, so the firmware flags it as degraded on first boot. This is a data mismatch, not a fault with the replacement cell. Running the battery learn cycle — one full discharge to hibernate, then an uninterrupted charge to 100% — rewrites the relevant registers and clears the warning. After one to two full cycles the BIOS health readout will update to reflect the actual cell state.

Laptop shuts down hard at 20–30% charge shown on the gauge

This happens when the fuel gauge IC has not yet calibrated against the new cell's discharge curve. The gauge underestimates how much voltage is left at the low end, and when the cell hits its actual cutoff voltage the laptop shuts down without warning — even though the OS still shows charge remaining. The fix is to complete two or three full discharge-to-hibernate and charge-to-100% cycles so the fuel gauge IC can map the new cell's voltage curve accurately. After calibration, the reported percentage will align with the real cutoff, and the hard shutdowns will stop.