Mitac MiNote 8100 Replacement Battery 11.1V 6600mAh

Mitac MiNote 8100 / 8170 Series — 11.1V Li-ion Replacement Battery (442671200001)

This 11.1V, 6600mAh Li-ion battery replaces the original cell in the Mitac MiNote 8100, MiNote 8170, MiNote 8170A, and MiNote 8175 notebook computers. It matches the OEM voltage rail and connector pinout for these models. Capacity is 6600mAh (73.26Wh) — use that figure when comparing against your original spec label.

• MiNote 8100 / 8170 platform fit: These four models share the same battery bay dimensions, 11.1V rail, and BMS handshake protocol. OEM part numbers 7004, 7005, 7006, 7170, 8170, 8175, 442671200001, 442671200002, and 442671200005 all cross to this cell — check any one of those against your original label to confirm.
• Bench tested on actual hardware: We cycled this cell through charge and load discharge on the MiNote platform. The BMS communicated correctly with the system, accepted a full charge without triggering protection cutoff, and held voltage through sustained CPU and display load without dropping below the low-voltage threshold.
• First-cycle calibration on the MiNote 8100: After fitting this battery, run one full discharge until the laptop hibernates on low-battery cutoff, then charge uninterrupted to 100%. 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 on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The MiNote BIOS reads health data from the battery's EEPROM on first contact. When a new cell arrives, that EEPROM holds factory default data that doesn't match the laptop's stored discharge history — so the BIOS flags it as degraded before a single cycle runs. This is a data mismatch, not a fault with the battery. Run the full discharge-to-hibernate then uninterrupted charge cycle described above. After one or two complete cycles, the fuel gauge IC recalibrates and the health warning clears.

Laptop shuts down abruptly while the charge indicator still shows 20–30%

This happens when the cell cannot sustain voltage under combined CPU and display load — the actual terminal voltage drops below the BMS cutoff threshold even though the fuel gauge still reads a percentage above zero. The fuel gauge IC is estimating charge state from a model built on the old cell's discharge curve, so it reads high until the voltage cliff hits. Calibrate the cell with a full uninterrupted discharge cycle to let the IC map the new cell's actual curve. After calibration, the shutdown point should align with the displayed percentage at or below 5%.