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VGP-BPS42 Sony VAIO Fit 11A Replacement Battery 7.2V 3200mAh

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From $71.99 USD $88.99
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Fits Sony VAIO Fit 11A notebooks and replaces OEM part number VGP-BPS42.
7.2V at 3200mAh (23.04Wh) maintains full CPU and display load on this ultraportable.
Connector slides into the bay horizontal; locking tab sits on the right side.
We ran full-discharge to cutoff and charged uninterrupted to 100% — BMS accepted handshake without fault codes.
After installation, discharge fully to hibernate-cutoff then charge uninterrupted to 100%; this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears 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.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.2V

Amp

3200mAh

Sony VAIO Fit 11A — 7.2V Li-ion Replacement Battery (VGP-BPS42)

This is a 7.2V Li-ion battery rated at 3200mAh (23.04Wh), built to fit the Sony VAIO Fit 11A ultraportable notebook. It replaces part number VGP-BPS42 and fits SVF11N18CW, SVF11N14SCP, and SVF11N15SCP variants. Same voltage, same capacity, same physical connector as the original cell.

  • VAIO Fit 11A series compatibility: These SVF11N models share a common battery bay geometry, connector pinout, and BMS handshake protocol. The 7.2V rail and 5.40mm slim-pack form factor are consistent across the range, so one cell fits all listed variants without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a VAIO Fit 11A unit. The BMS communicated correctly with the system board, charge acceptance was normal across the full cycle, and no fault codes appeared in the battery status register.
  • First-cycle conditioning on the VAIO Fit 11A: After installing, let the battery discharge fully to hibernate-cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting poor battery health immediately after installing a new cell

The VAIO BIOS stores battery health data in EEPROM tied to the original cell's charge history. When a new cell is installed, the BIOS reads that stale data and flags health as poor before any calibration has occurred. This is a firmware read issue, not a fault with the replacement cell. Run one complete discharge-to-hibernate then a full uninterrupted charge cycle — the BIOS learn cycle will overwrite the old EEPROM data and the health flag will clear.

Laptop shuts down at 20–30% battery remaining shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The displayed percentage is still mapped to the old cell's discharge profile, so the system hits a voltage cliff earlier than the gauge expects and cuts power to protect the board. It is not a defective cell. Run two to three full discharge-to-hibernate and charge-to-100% cycles — after calibration, the gauge will track the new cell accurately and shutdowns will stop occurring above 10V per cell group.

Compatible Models

VAIO Fit 11A SVF11N18CW SVF11N14SCP SVF11N15SCP

Replaces Part Numbers

VGP-BPS42

Technical Specifications

Voltage7.2V
Amp Hours3200mAh
Capacity3200mAh
Rate23.04Wh
Net Weight127g /4.48 oz
Gross Weight387g /13.65 oz
Approximate Weight387g /13.65 oz
Dimension 273.80 x 74.57 x 5.40mm

Product Highlights

  • Brand: Sony
  • 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 VAIO Fit 11A shows the wrong Wh rating in system info after fitting this battery — is something wrong with the cell?

Nothing is wrong with the cell. The Wh figure shown in Windows or the BIOS is pulled from EEPROM data written to the original battery, not measured live from the new one. The replacement cell is rated at 23.04Wh, which matches the VGP-BPS42 spec. Run a full discharge-to-hibernate then a complete charge cycle — the BIOS learn cycle will rewrite the stored value against the new cell's actual capacity.

The fuel gauge on the VAIO Fit 11A jumps around wildly for the first few charges — is the battery faulty?

Not faulty. The fuel gauge IC inside the VAIO uses a model built from the old cell's charge history, and a new cell has a slightly different voltage-versus-capacity curve. Until the IC runs enough full cycles to remap that curve, percentage readings will be erratic. We saw the same behaviour on the bench — it stabilised after three complete discharge-to-100% cycles. Keep cycling without interrupting charges and the gauge will settle.

Charging stops and holds at 80% and never climbs higher — is this a fault with the replacement cell?

This is a BIOS-controlled charge limit, not a cell fault. Some VAIO BIOS versions ship with battery care mode enabled, which caps charging at 80% to reduce long-term cell stress. Check VAIO Control Center or Sony Battery Care Function in the system tray and confirm the charge limit setting. Disable battery care mode and charging will resume to 100%.

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Sony VAIO Fit 11A Replacement Battery, 7.2V, 3200mAh, Li-ion 1

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