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Huawei MateBook HB25B7N4EBC Compatible Battery 7.6V 4300mAh

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From $58.99 USD $73.99
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Fits Huawei MateBook HZ-W19 series; replaces OEM part HB25B7N4EBC lithium-polymer cell.
7.6V, 4300mAh (32.68Wh) — voltage sustains the CPU and display under full load without stepdown throttling.
Connector sits flat against the mainboard slot with a single friction latch; no screws or secondary locks.
We ran full discharge and recharge cycles on a HZ-W19 unit; the BMS handshake completed cleanly on first insertion with no fault codes.
After installation, discharge fully to system hibernate, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.6V

Amp

4300mAh

Huawei MateBook / HZ-W19 — 7.6V Li-Polymer Replacement Battery (HB25B7N4EBC)

This is a 7.6V 4300mAh (32.68Wh) lithium-polymer replacement battery for the Huawei MateBook and HZ-W19 laptop. It replaces OEM part number HB25B7N4EBC using the same slim 2.55mm cell profile the chassis requires. Fits the main battery bay without modification.

  • MateBook and HZ-W19 compatibility: Both models share the same 7.6V power rail, the same HB25B7N4EBC connector pinout, and the same BMS handshake protocol — one cell fits both without adapter or firmware change.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a MateBook unit. The BMS accepted the cell without fault codes, balanced cells correctly across the pack, and hit the full 32.68Wh rated capacity within three cycles.
  • Post-install calibration cycle: After fitting this battery, run the MateBook down to hibernate cutoff — do not force shutdown — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false "poor health" or "unknown battery" warning that appears after every cell swap.

BIOS reporting poor battery health immediately after fitting a new cell

The MateBook's BIOS stores charge history and health data in EEPROM tied to the original cell. When a new cell goes in, that old data stays — the BIOS reads it and flags a health warning even though the cell is new. This is not a fault with the replacement. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100%. After one or two cycles, the BIOS learn cycle rewrites the EEPROM data against the new cell and the warning clears.

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

This happens when the cell voltage drops sharply under full CPU and display load — the fuel gauge still reads 20–30% by percentage, but the cell cannot hold voltage above the BMS cutoff threshold at that draw level. It is a voltage cliff: the cell hits cutoff before the percentage counter reaches zero. The fix is calibration — discharge fully to hibernate, not a forced shutdown, then charge to 100% without interruption. After two or three calibration cycles, the fuel gauge IC maps the new cell's voltage curve accurately and the early shutdowns stop.

Compatible Models

MateBook HZ-W19

Replaces Part Numbers

HB25B7N4EBC

Technical Specifications

Voltage7.6V
Amp Hours4300mAh
Capacity4300mAh
Rate32.68Wh
Net Weight156.2g /5.51 oz
Gross Weight296.2g /10.45 oz
Approximate Weight296.2g /10.45 oz
Dimension 232.94 x 116.02 x 2.55mm

Product Highlights

  • Brand: Huawei
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My MateBook shows "0% battery" and won't detect the new cell at all — what's wrong?

The BIOS is reading stale EEPROM data from the old cell and failing to handshake with the new one. Disconnect the battery connector, hold the power button for 15 seconds to drain residual charge from the board, then reconnect and boot. If the system still shows 0%, plug in AC power and let the cell sit on charge for 20 minutes before rebooting — this gives the BMS time to initialise communication with the BIOS.

Windows says the battery Wh rating is wrong — it shows a different capacity than what's on the label. Is the cell faulty?

It is not faulty. The Wh figure Windows reads comes from the EEPROM on the old cell's data — the firmware carries that value over until the fuel gauge IC recalibrates against the new chemistry. Run two full discharge-to-hibernate cycles followed by uninterrupted charges to 100%. After both cycles, Windows will report the correct 32.68Wh rating pulled from the new cell's actual discharge curve.

The MateBook's fuel gauge jumps around — shows 60%, then 45%, then back to 55% within minutes. How do I fix it?

The fuel gauge IC has not yet mapped the voltage curve of the new cell. It is interpolating from the old cell's calibration data, which does not match the new lithium-polymer discharge profile. Run three full discharge-to-hibernate cycles with uninterrupted charges to 100% between each. By the third cycle, the IC builds an accurate curve model and the gauge stabilises — target a resting voltage of 8.4V at full charge to confirm calibration is complete.

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