Huawei MateBook 16s i7 Replacement Battery 11.46V 7300mAh

Huawei MateBook 16s i7 — 11.46V Li-Polymer Replacement Battery (HB9790T7ECW-32A)

This 11.46V, 7300mAh (83.66Wh) Li-Polymer battery replaces the original HB9790T7ECW-32A and HB9790T7ECW-32B cells in the Huawei MateBook 16s and MateBook 16 series. It fits the MateBook 16s i7, MateBook 16s i9, MateBook 16 CREM-WFD9, and MateBook 16 R7 5800H. Swap it in when the original cell no longer holds a charge or the system reports degraded battery health.

• MateBook 16 and 16s compatibility: These models share the same 11.46V battery rail, physical footprint (296.30 × 101.60 × 10.00mm), and BMS handshake protocol — which is why both the i7, i9, R7 5800H, and CREM-WFD9 variants accept the same replacement cell.
• Bench tested on actual hardware: We cycled this cell on the MateBook 16s platform and confirmed the BMS completed full charge recognition without fault codes. The protection circuit responded correctly to overcurrent and thermal thresholds during sustained CPU and display load.
• First-cycle calibration on the MateBook 16s: After installation, run one full discharge to the hibernate-cutoff point, 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 replacement

The MateBook 16s BIOS stores battery health data in EEPROM tied to the original cell's cycle history. When a new cell is installed, that stale data conflicts with the fresh cell's reported state, and the system flags it as degraded before any real use occurs. This is not a fault with the replacement cell — it is a calibration mismatch. Run one complete discharge-to-hibernate followed by a full uninterrupted charge. The BIOS learn cycle rewrites the EEPROM baseline against the new cell and the health warning clears.

MateBook 16s shutting down at 20–30% charge shown

This happens when the cell's actual voltage under full load drops faster than the fuel gauge IC predicts — a voltage cliff caused by the fuel gauge IC still referencing the old cell's discharge curve. Under combined CPU burst and display load, the real cell voltage hits the BMS cutoff threshold while the OS still shows 20–30% remaining. The fix is the same calibration sequence: discharge fully to hibernate-cutoff, then charge to 100% without interruption. After two to three cycles, the fuel gauge IC maps the new cell's curve accurately and the early shutdowns stop. If the shutdowns continue past three cycles, check that the BIOS is not applying a charge limit — navigate to Power Manager settings and confirm battery protection mode is off.