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Vulcan X6 Laptop Compatible Battery 11.1V 4050mAh G15KN

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From $49.99 USD $61.99
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Fits Vulcan X6 and X5 notebooks; replaces OEM part numbers G15KN-11-16-3S1P-0, GI5KN-00-13-3S1P-0, and GI5KN-11-16-3S1P-0.
11.1V lithium-polymer cell rated 4050mAh delivers 44.96Wh — sustains CPU and display load without mid-session throttle or cutoff.
Connector seats flush into the X6 battery slot with positive and negative terminals aligned to the contact strip; locking tab slides left to release.
We bench-tested this cell against a discharged OEM pack; the BMS accepted charge without fault codes and held voltage stable across 2-hour load cycles.
After installation, discharge the laptop fully to hibernation cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings that appear after every cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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⚠️ 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

11.1V

Amp

4050mAh

Vulcan X6 / X5 — 11.1V Li-Polymer Replacement Battery (G15KN-11-16-3S1P-0)

This is an 11.1V 4050mAh (44.96Wh) lithium-polymer replacement battery for the Vulcan X6 and X5 notebooks. It replaces OEM part numbers G15KN-11-16-3S1P-0, GI5KN-00-13-3S1P-0, and GI5KN-11-16-3S1P-0. It restores battery-powered operation on both models where the original cell has degraded or failed.

  • X6 and X5 shared platform: Both models run the same 11.1V three-cell series configuration and use the same connector pinout and BMS handshake protocol. One replacement cell covers both SKUs without any modification.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the X6 platform. The BMS communicated correctly with the system, charge termination triggered at the expected voltage ceiling, and the fuel gauge IC accepted the new cell data after calibration.
  • Post-install discharge cycle for X6/X5: After fitting this battery, run the laptop on battery power until it hibernates at the low-voltage cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the false "poor health" warning that appears after every cell swap on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The Vulcan X6 BIOS reads health data stored in the battery's EEPROM. When a new cell arrives, that EEPROM data does not match the charge history the BIOS expects, so it flags the battery as degraded even though the cell is new. This is a data mismatch, not a hardware fault. Running one complete discharge-to-hibernate followed by a full uninterrupted charge resets the learn cycle and pushes fresh cycle data into the EEPROM. After two to three full cycles the health reading normalises.

Laptop shuts down at 20–30% charge shown on the gauge

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge estimates remaining charge based on the old cell's behaviour, so it reads 25% while the real cell voltage has already dropped below the safe threshold under CPU and display load. The laptop's protection circuit cuts power before the gauge catches up. Run two full discharge-to-hibernate and full-recharge cycles. After calibration the gauge tracks real cell voltage accurately and the premature shutdowns stop.

Compatible Models

X6 X5

Replaces Part Numbers

G15KN-11-16-3S1P-0 GI5KN-00-13-3S1P-0 GI5KN-11-16-3S1P-0

Technical Specifications

Voltage11.1V
Amp Hours4050mAh
Capacity4050mAh
Rate44.96Wh
Net Weight229g /8.08 oz
Gross Weight279g /9.84 oz
Approximate Weight279g /9.84 oz
Dimension 124.22 x 72.90 x 12.64mm

Product Highlights

  • Brand: Vulcan
  • 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 Vulcan X6 shows the replacement battery as "0%" or "unknown" and won't start charging — what's wrong?

The fuel gauge IC on the X6 pulls charge state from EEPROM data written by the previous cell. A new cell ships with blank or default EEPROM values that the system doesn't recognise, so the gauge stalls at 0% or reports unknown. Connect the charger and leave it for at least 30 minutes without pressing the power button — the BMS needs time to initialise communication before the gauge updates. If the reading stays at 0% after that, force a hard reset by holding the power button for 15 seconds, then reconnect the charger.

The battery charges to exactly 80% and stops — is the replacement cell faulty?

This is a BIOS-controlled charge limit, not a cell fault. Many Vulcan notebook firmware builds ship with a battery conservation mode that caps charging at 80% to reduce long-term cell stress. Check the power management settings in your OS or BIOS for a "battery care" or "charge limit" toggle and set it to 100%. The replacement cell has no internal limit at 80% — the cutoff is entirely firmware-side.

Windows is showing the wrong Wh rating for this battery — it says something completely different from 44.96Wh. Should I be concerned?

Windows pulls the Wh figure from the battery's EEPROM, which may still hold the rated value programmed at the factory under different test conditions or a different firmware revision. The actual cell in this replacement delivers 44.96Wh — that figure comes from measured capacity at 11.1V nominal. The discrepancy in the Windows battery report is a stored value mismatch, not a sign the cell is underperforming. Run two full discharge and recharge cycles and the reported figure will converge as the fuel gauge IC recalibrates against real charge data.

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