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Gxnova G2 ENZ K36 Laptop Replacement Battery 14.8V 4000mAh

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From $83.99 USD $103.99
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Fits Gxnova G2 ENZ K36, GX2 PRO K36, and GX2 laptop models as OEM replacement cell.
14.8V 4000mAh lithium-polymer pack delivers 59.2Wh to restore full mobile runtime on aging hardware.
Connector mates directly to G2 ENZ K36 socket; polarity-keyed design prevents reverse installation on contact.
Bench testing showed clean BMS handshake on first insertion; voltage regulation stayed flat through full discharge cycle.
After installation, discharge fully to sleep mode then charge uninterrupted to 100% — this resets BIOS battery learn cycle and clears health warnings common after cell swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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

14.8V

Amp

4000mAh

Gxnova G2 ENZ K36 / GX2 PRO K36 — 14.8V Li-Polymer Replacement Battery

This 14.8V, 4000mAh (59.2Wh) lithium-polymer cell replaces the original battery in the Gxnova G2 ENZ K36, GX2 PRO K36, and GX2 laptops. It restores portable operation when the factory cell no longer holds a usable charge. Voltage and connector match the original spec for direct installation.

  • G2 ENZ K36, GX2 PRO K36, and GX2 compatibility: These three models share the same battery bay dimensions, 14.8V power rail, and BMS handshake protocol — which is why one cell covers all three. The connector pinout and physical footprint (212.70 × 68.35 × 13.50mm) are identical across the range.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a G2 ENZ K36 unit. The BMS communicated correctly with the system board, and charge termination triggered at 16.8V as expected with no error flags.
  • Post-install discharge cycle: After fitting this battery, 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 swapping cells — skip it and the OS fuel gauge will read incorrectly for weeks.

Why the G2 ENZ K36 shuts down at 20–30% remaining after a battery swap

The fuel gauge IC on the system board holds calibration data from the previous cell. When a new cell is installed, that stored data no longer maps accurately to the new chemistry's voltage curve. Under combined CPU and display load, the laptop hits a voltage point the old calibration marks as "empty" — even though actual capacity remains. The fix is two to three full discharge-to-hibernate and full-charge cycles, which forces the fuel gauge IC to relearn the new cell's curve.

BIOS reporting battery health as "poor" or "unknown" immediately after install

The BIOS reads health status from EEPROM data embedded in the battery's BMS chip. A new cell ships with factory EEPROM values that don't yet match the laptop's learned charge history, so the BIOS flags it as degraded or unrecognised. This is not a fault with the cell. Run the battery learn cycle — one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100% — and recheck BIOS health status after the cycle completes.

Compatible Models

G2 ENZ K36 GX2 PRO K36 GX2

Technical Specifications

Voltage14.8V
Amp Hours4000mAh
Capacity4000mAh
Rate59.2Wh
Net Weight260g /9.17 oz
Gross Weight400g /14.11 oz
Approximate Weight400g /14.11 oz
Dimension 212.70 x 68.35 x 13.50mm

Product Highlights

  • Brand: Gxnova
  • 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 Gxnova G2 ENZ K36 shows the new battery at 0% and won't charge past that — what's happening?

The fuel gauge IC is reading EEPROM data from the old cell and hasn't mapped the new one yet. This causes the OS to report 0% or refuse to register a charge at all. Plug in the AC adapter and leave it connected for a full uninterrupted charge — the system should begin recognising the cell within 30–60 minutes of sustained input. If it stays at 0% after a full charge attempt, trigger the battery learn cycle: discharge fully to hibernate-cutoff, then recharge to 100% without interruption.

The laptop is showing the new battery as 59.2Wh in device manager but BIOS is displaying a different Wh figure — is the cell wrong?

The BIOS reads rated Wh from the battery's EEPROM, which reflects the original factory specification stored on the BMS chip. The OS reads actual measured capacity from the fuel gauge IC, which reports real chemistry output — those two numbers will differ until the cell has completed calibration cycles. The cell itself is correct at 59.2Wh. Run two full discharge-to-hibernate and full-charge cycles and the figures will converge.

The replacement battery charges fine but the OS fuel gauge jumps around — showing 60%, then 45%, then 70% within minutes of unplugging. Why?

The fuel gauge IC calibrates against charge and discharge history accumulated over multiple cycles. A fresh cell has no history on this specific board, so voltage-to-percentage mapping is unstable early on. The jumps narrow significantly after three full calibration cycles — discharge fully until the laptop hibernates, then charge uninterrupted to 100% each time. After the third cycle, the gauge should track within ±5% under normal mixed load.

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