Mediabook 8170 Replacement Battery 11.1V 6600mAh Li-ion

MEDIABOOK 8170 — 11.1V Li-ion Replacement Battery (7004)

This is an 11.1V, 6600mAh (73.26Wh) lithium-ion battery for the MEDIABOOK 8170 notebook laptop. It replaces OEM part numbers 7004, 7005, 7006, 7170, 8170, 8175, 442671200001, 442671200002, and 442671200005. The battery slots into the 8170 chassis and restores unplugged operation when the original cell has degraded or failed.

• 8170 platform compatibility: The 8170 series shares a common battery bay and connector pinout across its variants. All OEM part numbers listed above use the same 11.1V three-cell configuration and BMS handshake protocol, so one replacement cell covers the full model range.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the 8170 platform. The BMS authenticated correctly with the laptop's charge controller, reached full 11.1V without throttling, and the protection circuit tripped at the expected low-voltage cutoff without requiring a manual reset.
• First-cycle calibration on the 8170: After installation, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This forces the 8170's fuel gauge IC to re-learn the new cell's capacity curve and clears the inaccurate health warning that appears in the BIOS after any cell swap.

BIOS reporting poor battery health after fitting the replacement cell

The MEDIABOOK 8170 BIOS reads health data from the battery's EEPROM, which stores cycle count and rated capacity from the previous cell. A new cell carries fresh EEPROM data that doesn't match what the BIOS logged for the old battery, so the health indicator flags as poor or unknown immediately after the swap. This is a data mismatch, not a fault with the replacement cell. Running one full discharge-to-hibernate then a complete uninterrupted charge resets the learn cycle and updates the BIOS health register to reflect the new cell correctly.

Laptop shuts down abruptly while the gauge still shows 20–30% remaining

This happens when the cell voltage drops below the BMS cutoff threshold under combined CPU and display load before the fuel gauge IC predicts it will. The fuel gauge was calibrated to the old cell's discharge curve and doesn't yet know the new cell's voltage cliff point. The 8170's protection circuit cuts power the moment cell voltage falls to approximately 9V regardless of what the gauge displays. Two to three full calibration cycles — full discharge to hibernate, full charge to 100% — bring the fuel gauge IC into alignment with the new cell and eliminate the premature shutdown.