Asus ZenBook Pro 15 C41N2002 Replacement Battery 15.4V 4050mAh
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Asus ZenBook Pro 15 C41N2002 Replacement Battery 15.4V 4050mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Asus ZenBook Pro 15 C41N2002 Replacement Battery 15.4V 4050mAh - is backordered and will ship as soon as it is back in stock.
Voltage
15.4V
Amp
4050mAh
Asus ZenBook Pro 15 UX535 Series — 15.4V Li-Polymer Replacement Battery (C41N2002)
This is a 15.4V, 4050mAh (62.37Wh) Li-Polymer battery for the Asus ZenBook Pro 15 UX535 lineup. It fits the UX535LH-BN128R, UX535LI-H2006T, UX535LI-E2265T, UX535LI-H2166T, and over 60 additional UX535 variants. OEM part numbers are C41N2002 and 0B200-03770100.
- UX535 platform compatibility: All listed UX535 models share the same 15.4V four-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol — which is why a single cell works across the full range despite differing processor and GPU configurations.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on UX535 hardware. The BMS handshake completed correctly, charge acceptance was normal, and the protection circuit tripped at expected voltage limits on both the high and low ends.
- Post-install calibration on UX535: After fitting this battery, run the laptop down to hibernate cutoff under normal use — do not force-discharge — 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 UX535 models.
Why BIOS reports poor battery health immediately after fitting a new cell
The Asus BIOS reads battery health from EEPROM data stored in the battery's protection circuit board. When a new cell arrives, that EEPROM carries rated factory values that haven't yet been validated against actual charge and discharge behaviour on your specific unit. The BIOS interprets the mismatch as degradation and flags the battery as poor or unknown. Running one complete discharge-to-hibernate then a full uninterrupted charge allows the BIOS learn cycle to write fresh calibration data and clear the warning.
UX535 shutting down at 20–30% charge shown on screen
This is a voltage cliff issue, not a fuel gauge error. Under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track — the battery hits the BMS low-voltage cutoff while the OS still shows 20–30% remaining. It happens most often on UX535LI models with discrete GPUs because the current draw spikes sharply during render or video tasks. Run two full calibration cycles — discharge to hibernate, charge to 100% without interruption — and the fuel gauge IC will recalibrate its discharge curve against the new cell. After calibration, shutdown should not occur above 5–8% reported charge.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Asus
- 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 ZenBook Pro 15 shows the new battery as "0% available (plugged in, not charging)" — what's happening?
The fuel gauge IC on the UX535 loses its reference point when the cell is swapped and can report 0% or refuse to show charge progress until it resets. Shut the laptop down completely, leave it plugged in for 10 minutes without powering on, then boot normally. If the reading is still stuck, discharge the battery to hibernate cutoff and charge uninterrupted to 100% — this forces the IC to re-establish its calibration baseline against the new cell.
Windows battery report shows a wildly different Wh design capacity than the 62.37Wh listed for this cell — is it faulty?
It is not a fault. The Wh figure Windows reads comes from the EEPROM on the battery's protection circuit board, which stores the rated chemistry value from the factory. That value can differ from the measured capacity until the BIOS learn cycle runs against your specific unit. Complete one full discharge-to-hibernate followed by an uninterrupted charge to 100%, and the reported design capacity in Windows will align closer to the actual 62.37Wh spec.
The new battery charges fine but the charge stops at 80% and won't go higher — is the cell defective?
This is a BIOS-controlled charge limit, not a cell fault. Asus includes a battery care setting in MyASUS and in the BIOS that caps charge at 80% to reduce long-term cell stress — it ships enabled on many UX535 units. Open MyASUS, go to Customization, find Battery Health Charging, and switch it from Balanced Mode (80% cap) to Full Capacity Mode. After changing the setting, the battery will charge to 100%.
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