Hasee ZX7-CP5SC Replacement Battery 11.1V 5050mAh Li-ion

Hasee ZX7-CP5SC / TX7-CT5A1 Series — 11.1V Li-ion Replacement Battery

This is an 11.1V 5050mAh (56.06Wh) Li-ion battery for the Hasee ZX7-CP5SC, TX7-CT5A1, TX8-CRTH, ZX7-G4D1, and over 20 additional Hasee notebook models. It replaces the original cell when the existing pack degrades, stops holding charge, or fails BIOS health checks entirely. Voltage and connector match the original spec.

• ZX7 and TX-series platform fit: These Hasee models share the same 11.1V three-cell rail, connector pinout, and BMS handshake protocol. A single pack covers the ZX7-CP5SC, TX7-CT5A1, TX8-CRTH, and ZX7-G4D1 because the charge controller and communication line are identical across this platform generation.
• Bench tested on actual hardware: We cycled this cell through full charge and controlled discharge on compatible Hasee hardware. The BMS negotiated correctly with the system board, reported charge state without fault codes, and held voltage through the discharge curve without unexpected cutoff.
• First-cycle recalibration on Hasee notebooks: After fitting this battery, run the laptop down to hibernate cutoff — do not shut it down manually — 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 almost always appears after a cell swap on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The Hasee notebook BIOS reads health data from the EEPROM stored in the previous pack, not from the new cell's live readings. When you swap cells, the system still references that old EEPROM profile, which is why it immediately flags the replacement as degraded or unknown. This is not a fault with the new battery. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — the BIOS learn cycle then writes fresh calibration data against the new cell and the health warning clears.

Laptop shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The percentage shown is still mapped to the old cell's voltage profile, so the system hits its low-voltage shutdown threshold while the gauge still reads 20–30%. It is not a cell fault. Complete two or three full discharge-to-hibernate cycles without interrupting the discharge, and the fuel gauge IC recalibrates. After the second or third cycle the shutdown point should align to below 5% shown.