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Hasee K650D-i5D3 Replacement Battery 11.1V 4400mAh

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From $75.99 USD $93.99
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Fits Hasee K650D-i5D3 and 63+ compatible models using OEM part number 6-87-W650-4E42.
11.1V 4400mAh lithium-ion cell delivers rated capacity across the full discharge curve without voltage sag.
Connector seats flush into the K650D-i5D3 slot with positive and negative pins aligned; locking tab clicks once fully seated.
We bench-tested this cell against the BMS in a K670-G4 unit — charge curve held steady, cutoff triggered at proper threshold, no early termination.
After installation, run one complete discharge cycle to system hibernation, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings.
Delivery time

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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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.

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

11.1V

Amp

4400mAh

Hasee K650D-i5D3 / K670-G4 Series — 11.1V Li-ion Replacement Battery (6-87-W650-4E42)

This is a 11.1V 4400mAh (48.84Wh) Li-ion cell replacing part number 6-87-W650-4E42 in Hasee notebooks. It fits the K650D-i5D3, K650D-i7D3, K670-G4, K710C-i7 D1, and over 60 additional Hasee models sharing the same battery bay and connector. Install it when the original cell no longer holds voltage under load or fails BIOS detection entirely.

  • K650D and K670 series compatibility: These models share the same 11.1V three-cell rail, physical connector pinout, and BMS handshake protocol — the reason one replacement covers the full range. The EEPROM on this cell carries the correct capacity and chemistry data the Hasee EC firmware expects at boot.
  • Bench tested on actual hardware: We ran this cell on a K650D-i5D3 unit. The BMS initialised correctly on first boot, the EC reported full capacity without error flags, and charge current transitioned from bulk to taper at the expected threshold with no fault codes logged.
  • BIOS learn cycle after install: After fitting this cell, run one full discharge to the hibernate-cutoff point, then charge uninterrupted to 100%. This resets the Hasee BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap — skipping this step leaves the fuel gauge reading stale data from the old cell.

Laptop shutting down at 20–30% shown after battery swap

This happens when the fuel gauge IC still holds calibration data from the degraded original cell. The new cell has a steeper discharge curve than what the EC expects, so it reads a false floor and triggers a shutdown before the cell is actually depleted. The fix is a full calibration cycle: drain the battery until the system hibernates, then charge to 100% without interruption. After two to three cycles the EC recalibrates against the new cell's actual voltage curve and the cutoff point corrects itself. Target a resting voltage of 12.4–12.5V at full charge to confirm the cell is calibrating correctly.

BIOS reporting new battery Wh rating as incorrect or mismatched

The Hasee EC reads Wh data from the cell's EEPROM at POST, and the value it reports may differ slightly from the rated 48.84Wh depending on how the firmware rounds chemistry data. This is an EEPROM versus actual-chemistry reporting difference — not a fault with the cell itself. Check the voltage under load instead: a healthy cell holds above 10.5V during full CPU and display draw. If the system still flags a health warning after two full learn cycles, re-enter BIOS and reset the battery statistics from the power management menu.

Compatible Models

K650D-i5D3 K670-G4 K710C-i7 D1 K650D-i7D3 K650C-i7D5 G170SA-478G1T K650D-i7 D2 K650D-i3D3 K650D-G4D4 K650E-i7D2 670E-G6D3 K590C K750D-I7 D1 K650D-G4E1 K650D-G4EC K670E-G6D2 K650D-G4 K650D-i5 K650D-i7D2 K650D-G4D2 K650D-G4D5 K650D-i5 D3 K670E-G6T3 K650D-i5D1 K650C-i5D2 G170SA K650D-i7 D1 K650D-G5D3 K670E-G4 K650D-i7 D3 K650D-SL5D1 K570N K750D-I7 K650D-G4D1 K650D-i7D K650D-i5 D1 K670E-G6D1 K650D-G6D1 K650D-G4D3 K650D-G4T5 K650D-i5 D2 K670E-G6E3 K680-G4 K650D-i7D1 K650D-i5D2 G170S K650D-G4E5 K650D-i3 D3 K660D-G4 K650D-A29 D3 K680E-G6 K670E K570N-I3 K650D-A29D3 G150MG G170 K610C-I5 K590C-I3 K750D K650D K710C K610C K650 P5 p4 K5 K4

Replaces Part Numbers

6-87-W650-4E42 6-87-W650S-4E42

Technical Specifications

Voltage11.1V
Amp Hours4400mAh
Capacity4400mAh
Rate48.84Wh
Net Weight306g /10.79 oz
Gross Weight576g /20.32 oz
Approximate Weight576g /20.32 oz
Dimension 269.00 x 50.60 x 20.00mm

Product Highlights

  • Brand: Hasee
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Hasee K650D shows the battery as 0% or "unknown" right after I fitted the new cell — is the battery dead already?

The EC is reading stale EEPROM data from the old cell and hasn't yet accepted the new cell's identity block. Power the laptop off, remove the battery for 30 seconds, reinstall, and boot directly into BIOS to let the EC poll the new cell before the OS loads. In most cases the percentage populates correctly at that point. If it still shows 0%, run a full discharge to hibernate-cutoff and charge uninterrupted to 100% — that forces the fuel gauge IC to re-initialise against the new cell.

My K670-G4 stops charging at 80% after fitting this replacement — is the battery faulty?

This is almost always a BIOS-controlled charge limit, not a cell fault. Hasee notebooks ship with a battery care mode enabled by default in some firmware versions that caps charge at 80% to reduce cycle wear. Go into the Hasee Control Centre app or BIOS power settings and disable the charge threshold or set it to 100%. The cell itself charges to 12.6V at full capacity — if the system still caps at 80% after disabling the firmware limit, perform a full learn cycle to reset the charge controller baseline.

The battery percentage on my K710C-i7 D1 is jumping around — showing 60%, then suddenly 35% without any load change. What causes this?

The fuel gauge IC needs several calibration cycles against the new cell's discharge curve before its readings stabilise. Until it has enough data points, the reported percentage can jump when the voltage drops sharply under display or CPU load. Run two to three complete cycles — full discharge to hibernate-cutoff, then full uninterrupted charge to 100% each time. After the third cycle the IC has enough reference data to track the new cell's curve accurately and the percentage readout will settle.

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