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Sony VAIO Pro 11 VGP-BPS37 Replacement Battery 7.5V 4120mAh

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From $89.99 USD $111.99
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Fits Sony VAIO Pro 11 ultrabook models; replaces OEM part VGP-BPS37 battery pack.
7.5V, 4120mAh lithium-polymer cell delivers 30.9Wh for full workday on VAIO Pro 11.
Connector seats flush into bottom chassis slot; locking tab clips down to secure pack.
We bench-tested this cell against a degraded OEM pack — BMS accepted charge current cleanly, no thermal throttle on sustained CPU load.
After install, run one full discharge to hibernation cutoff, then charge uninterrupted to 100% to reset the BIOS battery learn cycle and clear false "poor 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.

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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🔹 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

7.5V

Amp

4120mAh

Sony VAIO Pro 11 — 7.5V Li-Polymer Replacement Battery (VGP-BPS37)

This is a 7.5V, 4120mAh (30.9Wh) Li-Polymer battery for the Sony VAIO Pro 11 ultrabook. It fits SVP1121ZPWR, SVP11217PW/B, SVP11216CW, and 76 additional SVP11-series configurations. It replaces the original VGP-BPS37 cell directly.

  • SVP11-series compatibility: All SVP11 variants share the same 7.5V two-cell Li-Polymer architecture, flat-pack form factor, and proprietary SMBus connector. The battery management circuit communicates charge state and health data directly to the VAIO EC firmware, so voltage, connector, and BMS protocol must all match — and they do across this entire model range.
  • Bench tested on actual hardware: We ran this cell on an SVP1121ZPWR under combined CPU and display load. The BMS held steady above the low-voltage cutoff threshold, charge acceptance reached full capacity without throttling, and the SMBus handshake completed without fault codes on the first cycle.
  • First-cycle discharge on the VAIO Pro 11: After installation, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This triggers the VAIO BIOS battery learn cycle, resets the fuel gauge IC baseline against the new cell, and clears the spurious "battery health poor" warning that appears after every cell swap on this platform.

BIOS reporting poor battery health immediately after fitting the VGP-BPS37

The VAIO Pro 11 BIOS reads health data from EEPROM registers written by the original cell during its service life. A new cell ships with factory EEPROM values that do not match the learned discharge curves stored in the system. Until the BIOS completes a full learn cycle against the new chemistry, it flags the battery as degraded. This is a firmware calibration state, not a fault. Run one full discharge to hibernate, charge to 100% without interruption, and the BIOS will rewrite its health register against the new cell data.

VAIO Pro 11 shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC still holds calibration data from the old, degraded cell. The displayed percentage is calculated against the old cell's discharge curve, so 20–30% on screen can represent the actual voltage floor of the new cell under combined CPU and display load. The laptop hits the hardware low-voltage cutoff before the gauge reaches 0%. Force a complete discharge to hibernate cutoff twice in succession — this forces the fuel gauge IC to recalculate capacity endpoints against the new cell and aligns the displayed percentage with actual cell voltage.

Compatible Models

VAIO Pro 11 SVP1121ZPWR SVP11217PW/B SVP11216CW VAIO SVP1121 SVP11227SCB SVP11214CXB SVP112A1CL VAIO SVP11216PXB VAIO Pro 11 Ultrabook VAIO SVP1121Z9E VAIO SVP1121M2E VAIO SVP112190X VAIO SVP11213CXS VAIO SVP1121W9EB VAIO SVP1121M1E VAIO SVP11215PXS VAIO SVP1122C5E VAIO SVP1121X9R VAIO SVP11217SCS VAIO SVP11222CXB VAIO SVP112A19T VAIO SVP112100C VAIO SVP1121V9RB VAIO SVP1121C5ER VAIO SVP11215CLB VAIO SVP1122M2EB VAIO SVP1121X9E VAIO SVP11216STB VAIO SVP11223CXB VAIO SVP112A1CP VAIO SVP1121Z9RB VAIO SVP1121M2RS VAIO SVP1121C4E VAIO SVP11215CBB VAIO SVP1121X2R VAIO SVP11216PXS VAIO SVP11226PXS VAIO Pro 11 Touch Ultrabook VAIO SVP1121Z9EB VAIO SVP1121M2EB VAIO SVP1121A4E VAIO SVP11217PG VAIO SVP1121X2E VAIO SVP11229PGB VAIO SVP1121(Pro 11) VAIO SVP1121X9RB VAIO SVP1121M1EBI VAIO SVP112190S VAIO SVP11213CXB VAIO SVP112A17T VAIO SVP1121W9E VAIO SVP1121D4E VAIO SVP11215PXB VAIO SVP1122M2E VAIO SVP1121X9EB VAIO SVP11222CXS VAIO SVP11218SCS VAIO SVP1121V9R VAIO SVP11215CDB VAIO SVP1122YCG VAIO SVP1121X2RB VAIO SVP11216ST VAIO SVP11226PXB VAIO SVP112A1CT VAIO SVP1121Z9R VAIO SVP1121M2R VAIO SVP1121B4E VAIO SVP11214CXS VAIO SVP112A2CL VAIO SVP1121X2EB VAIO SVP11217PGB VAIO SVP112A1CM VAIO SVP112A1CL VAIO SVP1121C5E VAIO SVP11217PW/B VAIO SVP11216CW VAIO SVP1121ZPWR VAIO SVP11214CXB VAIO SVP11227SCB

Replaces Part Numbers

VGP-BPS37

Technical Specifications

Voltage7.5V
Amp Hours4120mAh
Capacity4120mAh
Rate30.9Wh
Net Weight180.5g /6.37 oz
Gross Weight440.5g /15.54 oz
Approximate Weight440.5g /15.54 oz
Dimension 275.00 x 114.26 x 6.43 mm

Product Highlights

  • Brand: Sony
  • 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

The VAIO Pro 11 shows the new battery Wh rating as lower than the original — is the cell undersized?

The Wh figure displayed in BIOS and Windows Device Manager is read from the EEPROM register on the battery controller, not measured live. A replacement cell ships with factory EEPROM values that may differ from what the original cell had written after years of field use. The physical capacity of this cell is 30.9Wh, which matches the VGP-BPS37 specification. Run two full discharge-to-hibernate and charge-to-100% cycles — the BIOS will recalculate and update the displayed Wh value against actual cell behaviour.

The fuel gauge on the VAIO Pro 11 is jumping around — showing 60%, then 45%, then 70% within minutes of each other.

The fuel gauge IC on the VAIO Pro 11 uses a learned discharge model built up over hundreds of cycles with the original cell. After a cell swap, it has no valid baseline for the new cell's voltage-to-capacity curve, so reported percentages are essentially guesses until recalibration. This is not a fault with the replacement battery. Complete three full discharge-to-hibernate cycles followed by uninterrupted charges to 100% — by the third cycle the fuel gauge IC will have enough data points to track the new cell accurately.

The new VGP-BPS37 stopped charging at 80% and will not go higher — is something wrong with the cell?

This is a BIOS-controlled charge limit, not a cell fault. Sony's VAIO Care or VAIO Control Center software includes a battery protection mode that caps charging at 80% to reduce long-term cell stress — and this setting persists after a battery swap. Open VAIO Control Center, navigate to Power Management, and disable the "Battery Care Function" or set the charge limit to 100%. The cell itself will accept a full charge once the firmware limit is lifted.

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