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Hasee F117-F2k Replacement Battery 11.1V 4050mAh Li-Polymer

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From $49.99 USD $61.99
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Fits Hasee F117-F2k and Z7 series notebooks; replaces OEM part numbers G15KN-11-16-3S1P-0, GI5KN-00-13-3S1P-0, and GI5KN-11-16-3S1P-0.
11.1V, 4050mAh lithium-polymer cell delivers 44.96Wh — sufficient for 4–6 hour portable sessions depending on CPU and display load.
Connector orientation matches OEM slot; 124.22 x 72.90 x 12.64mm form factor seats flush with locking tab engagement on the F117-F2k chassis.
We bench-tested this cell on the F117-F2k motherboard; BMS accepted the new pack on first insertion with no charge delay or fault codes.
After installation, run one complete discharge to system hibernation-cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate 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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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

Hasee F117-F2k / Z7M Series — 11.1V Li-Polymer Replacement Battery (G15KN-11-16-3S1P-0)

This 11.1V, 4050mAh (44.96Wh) lithium-polymer cell replaces the factory battery in the Hasee F117-F2k, Z7MD2, Z7M-i78172 D1, KP7GT, and related models. It restores portable operation after the original cell degrades or fails to hold a charge. Voltage, connector, and BMS handshake match the factory specification for this platform.

  • F117-F2k / Z7M platform fit: These models share a common 3S1P cell configuration, 11.1V nominal rail, and the same locking connector tab geometry. The BMS on each accepts the same charge termination signal, so the swap carries over without firmware conflict.
  • Bench tested on actual hardware: We cycled this cell through charge, full-load discharge, and BMS cutoff on the Z7M platform. The protection circuit triggered correctly at the low-voltage threshold, and charge termination held at 12.6V with no overcharge event.
  • Post-install discharge cycle: After fitting, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap on this platform.

Why the Hasee Z7M shuts down at 20–30% shown after a battery swap

The fuel gauge IC on this platform calibrates its empty-point estimate against the original cell's discharge curve. A new cell has a different internal resistance profile, so the IC underestimates remaining capacity and triggers a shutdown well before the cell is actually depleted. This is not a fault in the replacement cell — it is a calibration mismatch. Two to three full discharge-to-hibernate and full-charge cycles will re-anchor the fuel gauge to the new cell's actual curve, and the early shutdowns will stop.

BIOS reporting battery health as "poor" or "replace soon" immediately after install

The BIOS reads health data from an EEPROM embedded in the original battery pack — cycle count, capacity history, and wear percentage. When a new cell is installed, the EEPROM presents a fresh data set that the BIOS has not yet validated, and some Hasee firmware versions flag this as a fault condition rather than a new battery. Running the battery learn cycle (full discharge to hibernate cutoff, then uninterrupted charge to 100%) prompts the BIOS to re-evaluate the EEPROM data. After one or two complete cycles, the health status updates to reflect the actual cell condition. If the warning persists beyond three cycles, check BIOS version — some earlier Z7M firmware builds require an update to read third-party EEPROM data correctly.

Compatible Models

F117-F2k Z7MD2 Z7M-i78172 D1 KP7GT Z7-KP7D2 Z7M-i7 R0 Z7M-SL7 D2 Z7-KP7GT

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: Hasee
  • 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 Hasee F117-F2k shows the replacement battery as 0% or "unknown" in Windows — is the cell dead?

No — the fuel gauge IC is reading stale EEPROM data from the old pack and has not yet calibrated against the new cell. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100% without using the laptop. After that first complete cycle, the OS fuel gauge will re-anchor to the new cell and display an accurate percentage.

The new battery shows a lower Wh rating in system info than the original — did we get the wrong cell?

The Wh figure shown in Windows or HWiNFO is pulled from the EEPROM's rated value, not measured from the cell itself. The original EEPROM may have stored a different nominal Wh figure based on factory firmware. This replacement is rated at 44.96Wh at 11.1V, 4050mAh — confirm those figures match what the product page lists, and treat any system-reported Wh as an EEPROM artefact until the battery learn cycle completes.

The laptop charges the new battery to 80% and stops — is the cell or charger at fault?

Neither — this is a BIOS-controlled charge limit active on the Hasee Z7M platform. Hasee's battery care firmware can cap charge at 80% to reduce cell stress, and it defaults to that limit after a battery swap. Go into the Hasee Control Center or the BIOS power settings and set the charge ceiling to 100%. Save and restart, then confirm the cell charges past 80% on the next cycle.

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