Compaq 2710 Tablet PC Replacement Battery 11.1V 3600mAh

Compaq 2710 Tablet PC Ultra-slim — 11.1V Li-ion Replacement Battery

This 11.1V, 3600mAh (39.96Wh) Li-ion battery fits the Compaq 2710 Tablet PC Ultra-slim, 2710 Tablet, and 2710p Tablet. It replaces the original cell when the factory battery no longer holds a charge or fails to register with the system. Physical dimensions are 210.70 x 67.20 x 13.40mm — confirm fitment against your existing cell before installing.

• 2710 and 2710p Tablet platform fit: All three compatible models share the same voltage rail and connector pinout. The BMS handshake on the 2710p is identical to the base 2710, so one cell works across the lineup without modification.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on a 2710-series unit. The BMS negotiated correctly, protection circuits tripped at expected low-voltage thresholds, and charge acceptance was consistent across multiple cycles.
• Post-install calibration on the 2710 Tablet: After fitting this battery, run one full discharge to hibernate-cutoff, 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 this platform.

BIOS reporting poor battery health after swapping the 2710 cell

The 2710's BIOS reads health data stored in the outgoing battery's EEPROM and compares it against the new cell's charge profile. A fresh cell has no historical data, so the BIOS flags it as degraded or unknown — this is a data mismatch, not a faulty battery. Running two to three full charge and discharge cycles allows the fuel gauge IC to build an accurate capacity model. After that, the health indicator corrects itself without any firmware change or BIOS update required.

Fuel gauge reading wildly inaccurate for the first few cycles

The fuel gauge IC in the 2710 estimates remaining capacity by tracking charge in and discharge out from a known baseline. When a new cell goes in, that baseline is gone and the IC guesses — sometimes showing 40% when the battery is nearly full, or dropping suddenly from 60% to low-battery shutdown. This settles after two or three full calibration cycles. Discharge the tablet to hibernate-cutoff each time and charge back to 100% uninterrupted; by cycle three, the gauge should track within a few percent of actual remaining capacity.