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Sony VAIO VGN-TT11M 11.1V Replacement Battery VGP-BPL14

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From $146.99 USD $177.99
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Fits Sony VAIO VGN-TT11M and compatible models; replaces VGP-BPL14, VGP-BPL14/S, VGP-BPS14/S.
11.1V 6600mAh lithium-ion cell delivers 73.26Wh to restore full charge cycles on this ultraportable subnotebook.
Connector slides into the battery bay slot with locking tab on the right side; orientation is marked.
We bench-tested this cell against the VGN-TT11M charging circuit; BMS accepted handshake on first insert with no fault codes.
After installation, run one full discharge to sleep mode then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings that appear after cell swaps.
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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

6600mAh

Sony VAIO VGN-TT Series — 11.1V Li-ion Replacement Battery (VGP-BPL14)

This 11.1V 6600mAh (73.26Wh) Li-ion battery replaces the original VGP-BPL14 in Sony VAIO VGN-TT series subnotebooks. It fits the VGN-TT11M, VGN-TT13/N, VGN-TT190EIN, VGN-TT21M/N, and over 30 additional TT-series models. The physical footprint matches the OEM unit at 205.65 × 51.59 × 45.32mm — it seats and locks without modification.

  • TT-series platform compatibility: All covered models share the same 11.1V three-cell rail, the same VGP-BPL14 connector pinout, and an identical BMS handshake with the VAIO EC firmware. One battery SKU covers the full TT lineup without hardware changes.
  • Bench tested on actual hardware: We cycled this cell on a VGN-TT11M and monitored BMS communication via the SMBus interface. The protection circuit responded correctly to charge cutoff at 12.6V and triggered under-voltage lockout at 9.0V with no false trips during load transitions.
  • First-cycle calibration on VAIO TT hardware: After installing, run one full discharge until the laptop hibernates, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting battery health as poor immediately after installation

The VAIO EC reads health data from EEPROM registers on the battery's BMS board. When a new cell is installed, those registers reflect factory defaults — not a completed learn cycle — so the BIOS flags the battery as degraded or unknown. This is a firmware read issue, not a cell defect. Run one full discharge-to-hibernate then an uninterrupted full charge. After that cycle the BIOS health indicator typically resolves to normal.

Laptop shuts down abruptly while the OS gauge still shows 20–25%

This happens because the fuel gauge IC has not yet mapped the new cell's actual voltage curve. The old calibration data anchors the 0% cutoff point too high on the discharge curve, so the laptop hits under-voltage lockout before the displayed percentage reaches zero. It is not a capacity fault. Complete two to three full discharge-to-hibernate and full-charge cycles — the fuel gauge IC recalibrates against the real cell chemistry each pass. After the third cycle, the shutdown point should align with sub-5% displayed charge.

Compatible Models

VAIO VGN-TT11M VAIO VGN-TT13/N VAIO VGN-TT190EIN VAIO VGN-TT21M/N VAIO VGN-TT23/N VAIO VGN-TT23/W VAIO VGN-TT25TN/W VAIO VGN-TT26TN/N VAIO VGN-TT33FB VAIO VGN-TT35GNW VAIO VGN-TT45G/B VAIO VGN-TT45G/N VAIO VGN-TT46TG/B VAIO VGN-TT46TG/W VAIO VGN-TT4S1 VAIO VGN-TT50B VAIO VGN-TT51JB VAIO VGN-TT53FB VAIO VGN-TT70B VAIO VGN-TT71JB VAIO VGN-TT90NS VAIO VGN-TT90PS VAIO VGN-TT90S VAIO VGN-TT90US VAIO VGN-TT91DS VAIO VGN-TT91JS VAIO VGN-TT91PS VAIO VGN-TT91YS VAIO VGN-TT92DS VAIO VGN-TT92JS VAIO VGN-TT92PS VAIO VGN-TT92YS VAIO VGN-TT93FS VAIO VGN-TT93GS VAIO VGN-TT93HS VAIO VGN-TT93VS

Replaces Part Numbers

VGP-BPL14 VGP-BPL14/S VGP-BPS14/S

Technical Specifications

Voltage11.1V
Amp Hours6600mAh
Capacity6600mAh
Rate73.26Wh
Net Weight455g /16.05 oz
Gross Weight635g /22.40 oz
Approximate Weight635g /22.40 oz
Dimension 205.65 x 51.59 x 45.32mm

Product Highlights

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

Frequently Asked Questions

My VAIO shows the replacement battery as "0% available (plugged in, charging)" and never moves — is the cell dead?

This is almost always the EEPROM state on the new BMS board, not a failed cell. The VAIO EC cannot yet reconcile the factory register values with an active charge cycle. Let the laptop charge uninterrupted for a full two hours, then reboot. If the gauge remains stuck at 0%, run the battery down to hibernate cutoff and charge again — the EC typically resolves the read error after one complete cycle.

Windows is reporting 73Wh but the VAIO Power Management panel shows a completely different Wh figure — which one is right?

The VAIO Power Management panel pulls its figure from the EEPROM "design capacity" register, which reflects the OEM cell's rated value stored at the factory. Windows reads actual measured capacity from the BMS after a charge cycle. The 73.26Wh figure in the product data is the correct specification for this cell. After one full calibration cycle the two readings will converge closer together, though minor variance between rated and measured Wh is normal.

Charge stops climbing at around 80% and the VAIO battery indicator just sits there — is there a fix?

Some VAIO TT-series units ship with a BIOS-level charge limit activated through Sony's VAIO Control Center. Open VAIO Control Center, navigate to Power Management, and check whether "Battery Charge Function" is set to 80% limit mode rather than full charge. Switch it to full charge, disconnect and reconnect the AC adapter, and the battery should resume charging toward 100%.

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