Clevo P960EN-K Replacement Battery 15.2V 3550mAh

Clevo P960EN-K / P960 — 15.2V Li-Polymer Replacement Battery (P970BAT-4)

This is a 15.2V 3550mAh (53.96Wh) Li-Polymer battery for the Clevo P960EN-K and P960 notebook series. It uses OEM part number P970BAT-4 and connects via the original battery bay without modification. Fit the new cell, boot normally, and the laptop draws power from it immediately.

• P960EN-K and P960 compatibility: Both models share the same 15.2V four-cell Li-Polymer architecture, identical connector pinout, and the same BMS handshake protocol — so one cell covers the full P960 platform without any firmware or hardware variation.
• Bench tested on actual hardware: We cycled the P970BAT-4 cell on P960-series hardware and monitored BMS communication at each charge stage. The protection circuit tripped correctly at low-voltage cutoff and the charge controller accepted full charge without fault codes.
• Post-install discharge cycle on Clevo P960 systems: After fitting this cell, run a full discharge to hibernate-cutoff under normal load — screen on, applications running — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on the P960 platform.

BIOS Reporting Battery Health as Poor Immediately After Fitting P970BAT-4

The Clevo P960 BIOS reads stored EEPROM data from the old cell and compares it against the new cell's initial readings before any calibration has run. Until the learn cycle completes, the firmware flags the new cell as degraded because the wear indicators from the previous battery don't match the fresh chemistry. This is a calibration state, not a fault. Run one complete discharge-to-hibernate cycle followed by a full uninterrupted charge, and the BIOS health indicator will update to reflect the actual cell condition.

Laptop Shuts Down at 20–30% Shown on the Fuel Gauge

The fuel gauge IC on the P960 platform estimates remaining charge based on a voltage-to-capacity curve calibrated against the previous cell's chemistry. After a cell swap, that curve is misaligned — the IC reads a voltage that it incorrectly maps to 20–30% remaining, but the actual cell voltage is already at or near the low-voltage cutoff cliff. The BMS then triggers a protective shutdown to prevent cell damage. Two to three full discharge-and-charge cycles allow the fuel gauge IC to re-map the voltage curve against the new cell, after which the percentage readout will track accurately down toward 5–10% before any shutdown occurs.