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VGP-BPS38 Sony VAIO Pro 13 Replacement Battery 7.5V 4740mAh

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From $100.99 USD $124.99
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Fits Sony VAIO Pro 13 models; replaces VGP-BPS38, VGP-BPS37, VGP-BPSE38 battery packs.
7.5V, 4740mAh lithium-polymer cell delivers 35.55Wh to restore full charge capacity on ultrabooks.
Connector seats flush into the bottom-case slot with the locking tab oriented toward the hinge.
We ran full charge cycles on a SVP1322YCW unit; BMS accepted the cell without fault codes.
After installation, run one full discharge to 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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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

7.5V

Amp

4740mAh

Sony VAIO Pro 13 — 7.5V Li-Polymer Replacement Battery (VGP-BPS38)

This 7.5V Li-Polymer battery replaces the VGP-BPS38 cell in the Sony VAIO Pro 13 ultrabook. It fits SVP1322YCW, SVP13229PW, SVP13218PW, and over 90 additional Pro 13 variants sharing the same connector and voltage rail. Capacity is 4740mAh (35.55Wh) — matched to the original specification.

  • VAIO Pro 13 platform fit: All listed SVP13 models run the same 7.5V two-cell Li-Polymer architecture with identical BMS handshake and flat ribbon connector. The VGP-BPS38, VGP-BPS37, and VGP-BPSE38 part numbers cross-reference to the same physical cell format and EEPROM profile.
  • Bench tested on actual hardware: We cycled this cell on a Pro 13 unit and confirmed the BMS accepted the new cell without error flags. Charge termination triggered correctly at 8.4V and the protection circuit tripped cleanly at the low-voltage cutoff threshold.
  • First-cycle calibration on the VAIO Pro 13: After installing, run one full discharge until the laptop hibernates, then charge uninterrupted to 100%. This forces the VAIO's fuel gauge IC to recalibrate against the new cell and clears the inaccurate battery health warning that appears after every cell swap.

VAIO Pro 13 shutting down at 20–30% after a battery swap

This is a voltage cliff issue, not a faulty cell. Under combined CPU and display load, the new cell's voltage drops faster than the BIOS fuel gauge expects based on the old cell's discharge curve. The BIOS reads the voltage drop as critically low and triggers an emergency shutdown before the displayed percentage reaches zero. Running two to three full calibration cycles — discharge to hibernate, charge to 100% — lets the fuel gauge IC remap the new cell's actual discharge curve and eliminates the premature shutdown.

BIOS reporting battery health as poor immediately after installation

The VAIO BIOS reads health data from EEPROM registers written by the original cell's charge history. A new cell carries different cycle count and state-of-health values in those registers, which the BIOS flags as degraded. This is a data mismatch — not a physical fault with the replacement cell. To clear it, enter VAIO Care or the battery diagnostics utility and run a full battery learn cycle; the BIOS will rewrite the health registers against the new cell's actual capacity and the warning will not return.

Compatible Models

VAIO Pro 13 SVP1322YCW SVP13229PW SVP13218PW SVP13213CW SVP132A1CM SVP1322X2E SVP1321D6E SVP1321N2E SVP1321Z9E SVP1322M2E SVP13218PT SVP1321M1R SVP1321U6R SVP1322C5E SVP1321F4R SVP1321N6R P132200C SVP1322M9R SVP13219PT SVP1321M2R SVP1321V9R SPV132A1CM SVP13212ST SVP1321I6R SVP1321Q4R P13227SC SVP1322V8E SVP1321B6E SVP1321M8E SVP1321X9E SVP1322L1E SVP13213ST SVP1321J1R SVP1321S2E SVP13217SC SVP1322V9R SVP1321C5ER SVP1321M9R SVP1321Y9E SVP1322M1R SVP13218PG SVP1321L1R SVP1321T6R SVP13226PXS SVP1321E4R SVP1321N4R SVP1321Z9R SVP132190X SVP1321M2E SVP1321V9E SVP132A1CW SVP13211ST SVP1321HGXBI SVP1321O6R P11226SCBI SVP1322V2E SVP1321ACXB SVP1321M4R SVP1321W9E SVP1322M8E SVP13213CXB SVP1321J1E SVP1321S1E P13226SC SVP1322V9E SVP1321BPXR SVP1321M9E SVP1321X9R SVP1322M1E SVP13215PXB SVP1321L1E SVP1321S9E SVP112100C SVP1321BPXB SVP13218SCB SVP132A1CP SVP1321M9EB SVP1321L1EBI SVP132A2CM SVP1322F4EB SVP13213CGB SVP13215PXS SVP132A1CV SVP1322YCG SVP13216PG SVP132A1CL SVP1122YCG SVP11229PGB SVP1322F4E SVP11217PG SVP11217SCS SVP1321C5E VAIO Pro 11

Replaces Part Numbers

VGP-BPS38 VGP-BPS37 VGP-BPSE38

Technical Specifications

Voltage7.5V
Amp Hours4740mAh
Capacity4740mAh
Rate35.55Wh
Net Weight186g /6.56 oz
Gross Weight446g /15.73 oz
Approximate Weight446g /15.73 oz
Dimension 306.18 x 128.67 x 6.25mm

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 13 shows a completely wrong Wh rating in system info after fitting the new battery — is the cell faulty?

No — this is an EEPROM mismatch, not a physical fault. The Wh value displayed in Windows or VAIO Care is pulled from the battery's EEPROM registers, which still hold the rated figures from the original cell's chemistry batch. The replacement cell's actual electrochemistry may report a marginally different value before the fuel gauge IC recalibrates. Run one full discharge-to-hibernate and uninterrupted charge-to-100% cycle; after calibration the displayed Wh figure will align with the cell's actual 35.55Wh rating.

My VAIO Pro 13 fuel gauge jumps around wildly — showing 80%, then 45%, then 70% within minutes of unplugging — what is happening?

The fuel gauge IC is reading the new cell's voltage curve against calibration data built for the old, degraded cell. Until it has reference points across the full discharge range of the new cell, its state-of-charge estimates are unreliable. Run two to three complete cycles — discharge until the laptop hibernates on battery, then charge uninterrupted to 100% each time — and the gauge will stabilise. After the third cycle the percentage should track smoothly with no large jumps.

The replacement battery is not charging above 80% on the VAIO Pro 13 — is the cell defective?

This is almost always a BIOS-controlled charge limit, not a cell fault. Sony's VAIO Care software includes a battery care mode that caps charging at 80% to reduce long-term cell stress — check VAIO Care or Sony's battery settings utility and confirm that mode is switched off. If no software limit is active, reset the battery controller by fully discharging to hibernate, removing the AC adapter for 30 seconds, reconnecting, and charging to 100% in one uninterrupted session. Confirm the charge ceiling is gone by checking the battery percentage once the power LED indicates a full charge.

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