Asus ROG GL502VS C41N1531 Replacement Battery 15.2V 4000mAh
This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.
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Asus ROG GL502VS C41N1531 Replacement Battery 15.2V 4000mAh - 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 ROG GL502VS C41N1531 Replacement Battery 15.2V 4000mAh - is backordered and will ship as soon as it is back in stock.
Voltage
15.2V
Amp
4000mAh
Asus GL502VS-GZ422T — 15.2V Li-Polymer Replacement Battery (C41N1531)
This is a 15.2V, 4000mAh (60.8Wh) lithium-polymer replacement battery for the Asus ROG GL502VS-GZ422T and related GL502 series gaming laptops. It replaces OEM part numbers C41N1531, 0B200-0194000, and 0B200-01940100. The battery slots into the GL502VS, GL502VY, and ROG Strix G502VS lines that share the same four-cell 15.2V power rail and connector layout.
- GL502 series compatibility: The GL502VS, GL502VY, and G502VS platforms all run the same 15.2V four-cell architecture with an identical BMS handshake protocol. That shared electrical spec is why one cell covers all three lines — not just a connector match.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on GL502VS hardware. The BMS completed full handshake without fault codes, and charge termination triggered correctly at capacity without overcharge events.
- Post-install calibration for GL502 series: After fitting this cell, run the laptop down to hibernate cutoff on a moderate workload, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity and clears the false "poor health" flag that appears after every cell swap on ROG firmware.
BIOS reporting poor battery health after fitting a new GL502 cell
Asus ROG firmware reads health data from EEPROM stored on the old cell. When a new cell goes in, that EEPROM register is blank or mismatched, so the BIOS flags the battery as degraded before it has run a single cycle. This is a firmware calibration state, not a fault with the replacement cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% lets the fuel gauge IC write fresh baseline data. After that cycle, BIOS health reporting normalises.
GL502VS shutting down at 20–30% charge shown on-screen
This happens when the cell voltage drops below the BMS cutoff threshold under full CPU and display load, even though the OS fuel gauge still shows charge remaining. The fuel gauge IC is reading stored EEPROM estimates, not live cell voltage — the two fall out of sync after a cell swap. Under a gaming workload, the sudden current draw exposes the voltage cliff faster than the gauge can update. Run two full calibration cycles and confirm the BIOS sees the cell at 60.8Wh in the battery report before concluding there is a cell fault.
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
The Asus battery health widget shows 0% wear tolerance after I just installed this — is the cell already dead?
No. The GL502 BIOS pulls health data from EEPROM written by the original cell. A new cell has no matching EEPROM entry, so the firmware defaults to a worst-case health flag. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. That single learn cycle rewrites the EEPROM baseline and the health reading corrects itself.
Windows is showing the wrong Wh rating — 45Wh instead of 60.8Wh — in the battery report after fitting this cell. What causes that?
The Wh figure Windows displays is pulled from the EEPROM data stored on the cell, not measured live. A mismatch between the new cell's rated chemistry and the old EEPROM entry causes the OS to display the stale or default value. After two full calibration cycles, the fuel gauge IC updates its register and Windows battery report should reflect the correct 60.8Wh. If it persists beyond three cycles, check the BIOS battery report directly — not the Windows power settings panel.
The GL502VS fuel gauge is jumping — shows 60%, then 45%, then 55% within minutes of unplugging. Why?
The fuel gauge IC on the GL502 motherboard calibrates its discharge curve against the original cell's internal resistance profile. A new cell has a different profile, so the IC's state-of-charge estimates are unstable for the first few cycles. This is not a fault — it settles as the IC gathers real discharge data across full cycles. Run three complete discharge-to-hibernate and full-charge cycles and the gauge will stabilise to within a few percent.
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