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Asus ProArt StudioBook Pro X Replacement Battery C41N1838 15.32V

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From $88.99 USD $109.99
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Fits Asus ProArt StudioBook Pro X and StudioBook 17 W730G2T; replaces OEM part C41N1838.
15.32V at 4000mAh delivers 61.28Wh — matches factory output for sustained workload performance.
Connector slides into the internal bay; locking tab secures the cell flush against the chassis.
We ran full CPU load cycles on the test unit; BMS registered stable voltage curve with no early cutoff.
After installation, discharge fully to hibernation 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.
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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.

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

Voltage

15.32V

Amp

4000mAh

Asus ProArt StudioBook Pro X / StudioBook 17 W730G2T — 15.32V Li-ion Replacement Battery (C41N1838)

This is a 15.32V, 4000mAh (61.28Wh) Li-ion replacement battery for the Asus ProArt StudioBook Pro X and StudioBook 17 W730G2T. Both are mobile workstations that draw sustained high loads from CPU, GPU, and display simultaneously. The C41N1838 part number maps directly to these two models and no others in the StudioBook line.

  • StudioBook Pro X and W730G2T shared platform: Both models run the same 15.32V four-cell configuration with an identical BMS connector and handshake protocol. The shared voltage rail and BMS communication spec mean one part number covers both chassis without modification.
  • Bench tested on actual hardware: We ran this cell through a full charge and discharge cycle on the StudioBook platform. The BMS accepted the new cell, completed the charge handshake, and held voltage within spec under sustained GPU and CPU load.
  • Post-install calibration on the StudioBook: After fitting this cell, 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.

Why the StudioBook shuts down at 20–30% after a battery swap

The BIOS fuel gauge IC builds a discharge curve against the original cell over time. When a new cell goes in, that stored curve no longer matches the actual chemistry. The gauge reads 20–30% remaining, but the cell voltage has already dropped below the minimum load threshold — so the system cuts power to protect the hardware. Running two or three full discharge-to-hibernate and charge-to-100% cycles forces the fuel gauge IC to rebuild the curve against the new cell and the shutdowns stop.

BIOS reporting battery health as poor immediately after replacement

This happens because the BIOS reads health data from EEPROM registers written by the original cell's embedded controller. A fresh cell arrives with its own factory EEPROM values, which the BIOS interprets as a mismatch or degraded state. It is not a fault with the replacement cell. After one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, the BIOS rewrites its battery learn data and the health warning clears.

Compatible Models

ProArt StudioBook Pro X StudioBook 17 W730G2T

Replaces Part Numbers

C41N1838 0B200-03460000

Technical Specifications

Voltage15.32V
Amp Hours4000mAh
Capacity4000mAh
Rate61.28Wh
Gross Weight450g /15.87 oz
Approximate Weight450g /15.87 oz

Product Highlights

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

Frequently Asked Questions

My StudioBook is showing the new battery as 0% or "unknown" in Windows — why won't it read correctly?

The Windows fuel gauge IC still holds calibration data from the old cell, so it cannot map voltage to a percentage on the new chemistry. This is an EEPROM and firmware issue, not a fault with the replacement. Run the laptop down to hibernate-cutoff on battery alone, then charge uninterrupted to 100% without unplugging. Repeat that cycle twice and the gauge IC recalibrates against the new cell.

Windows Battery Report is showing the wrong Wh rating — it says 47Wh but the replacement is 61.28Wh. Is the battery faulty?

The Wh figure in Windows Battery Report pulls from the EEPROM design capacity value written by the original cell's embedded controller, not from live measurement of the new cell. The replacement cell carries its own factory EEPROM entry, which the OS reads as the rated figure until the learn cycle updates it. Run one full discharge-to-hibernate then a full uninterrupted charge to 100%. After that cycle completes, check Battery Report again — the reported design capacity should update to reflect the new cell's actual 61.28Wh rating.

The new battery charges fine but the StudioBook cuts out under load — rendering in DaVinci or compiling in Visual Studio kills it instantly. What's happening?

Under a full CPU plus GPU render load, the StudioBook draws peak current that the fresh cell's BMS has not yet profiled. If the old BIOS discharge curve is still active, the system sees a voltage sag and trips the cutoff before the true cell minimum is reached. This is a voltage-cliff shutdown, not a defective cell. Discharge the laptop fully to hibernate on battery with a CPU-heavy task running, then charge uninterrupted to 100% — this forces the BMS and BIOS to recalculate the load curve against the new cell's actual discharge characteristics.

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