About this replacement
Clevo N170RD Series — 11.1V Li-ion Replacement Battery (6-87-N150S-4292)
This is an 11.1V 5200mAh (57.72Wh) Li-ion replacement battery for the Clevo N170RD and related N150/N155 series laptops. It replaces OEM part numbers 6-87-N150S-4292 and N150BAT-6. Fits N170RD, N155RD1, N150RF1-G, N150SD, and over a dozen additional N-series models sharing the same battery bay and connector spec.
- N150/N170 series compatibility: These models share a common 6-cell Li-ion architecture, identical connector pinout, and the same BMS communication protocol over the SMBus line — which is why one SKU covers the full range without modification.
- Bench tested on actual hardware: We ran this cell on an N170RD chassis and confirmed the BMS completed handshake on first boot, the BIOS recognised the battery as a known pack, and charge cycling initiated correctly from a depleted state.
- Post-install calibration on N-series: After fitting, discharge the laptop fully until it hibernates on low battery cutoff, then charge uninterrupted to 100% without using the machine. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after swapping cells.
BIOS reporting poor battery health immediately after fitting a new cell
The Clevo BIOS reads health data from the battery's EEPROM on first contact. That EEPROM holds charge-cycle count and capacity history from the previous cell — not from the new one. The system flags poor health because it is reading stale data, not measuring the actual cell chemistry. Running a full discharge-to-hibernate followed by an uninterrupted charge to 100% triggers the learn cycle that overwrites the stored values with data from the new pack.
Laptop shuts down abruptly while the OS gauge still shows 20–25% remaining
This happens when the cell voltage drops below the BMS cutoff threshold under combined CPU and display load, even though the fuel gauge IC still reports charge remaining. The fuel gauge IC calibrates against learned discharge curves — on a new cell, those curves have not yet been established. The result is a mismatch between displayed percentage and actual deliverable voltage. Run two to three full discharge-and-charge cycles and the fuel gauge IC will recalibrate against the real cell behaviour; the cutoff voltage for this pack is approximately 9.0V under load.