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Microsoft Surface Go Replacement Battery 7.6V 3100mAh

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From $46.99 USD $57.99
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Fits Microsoft Surface Go tablets with part numbers G16QA043H or Q16QA043H.
This 7.6V, 3100mAh lithium-polymer cell restores full charge capacity to aging Surface Go units after repeated charge cycles degrade the original pack.
Connector type is a two-pin proprietary dock that seats flush into the battery cavity with no locking tab — orientation marked on the housing.
We bench-tested this pack in a Surface Go unit; the BMS accepted charge negotiation on first insertion and voltage held steady under WiFi-plus-display load.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge IC calibration and corrects inaccurate percentage display.
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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

7.6V

Amp

3100mAh

Microsoft Surface Go — 7.6V Li-Polymer Replacement Battery (G16QA043H)

This 7.6V, 3100mAh lithium-polymer battery fits the Microsoft Surface Go tablet, covering models 1824, 4415Y, and Surface Go 10. It replaces part numbers G16QA043H and Q16QA043H directly. Capacity is rated at 23.56Wh, matching the original cell specification.

  • Surface Go 1824 and 4415Y compatibility: Both variants share the same battery bay dimensions, connector pinout, and BMS communication protocol. The fuel gauge IC on each board talks to the same register set, so one cell covers both revisions without any firmware conflict.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Surface Go 1824 unit. The BMS accepted the new cell without fault flags, charge IC stepped through CC/CV phases cleanly, and the tablet exited low-battery lockout as expected.
  • Fuel gauge recalibration after swap: After fitting this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. The Surface Go's fuel gauge IC calibrates against the new cell during that first complete cycle, eliminating the inaccurate percentage readings that appear immediately after a battery swap.

Surface Go shutting down at 15–25% remaining after battery replacement

This is a voltage cliff issue, not a defective cell. Under combined display-backlight and Wi-Fi load, the battery terminal voltage drops sharply in the lower state-of-charge range. The fuel gauge IC, still calibrated to the old cell's discharge curve, triggers a low-voltage cutoff earlier than the actual remaining capacity warrants. Run one full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% — this writes a new discharge curve to the gauge and moves the cutoff point back to the correct voltage floor near 6.0V.

Fast charging unavailable after Surface Go battery swap

The Surface Go uses USB-PD for charging negotiation between the charger and the charge IC. On a freshly fitted cell, the charge controller may not immediately complete a successful PD handshake at higher wattage, so the tablet defaults to the standard 5V profile. Connect the original Microsoft charger and let the device complete one full charge cycle from below 20% to 100%. After that cycle the PD negotiation completes normally and the charge IC accepts the higher voltage rail on subsequent sessions.

Compatible Models

Surface Go 4415Y Surface Go 10 1824

Replaces Part Numbers

G16QA043H Q16QA043H

Technical Specifications

Voltage7.6V
Amp Hours3100mAh
Capacity3100mAh
Rate23.56Wh
Net Weight105.8g /3.73 oz
Gross Weight245.8g /8.67 oz
Approximate Weight245.8g /8.67 oz
Dimension 177.38 x 74.45 x 3.90mm

Product Highlights

  • Brand: Microsoft
  • 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

My Surface Go shows 100% for a few minutes then drops to 80% — is the new battery faulty?

This is fuel gauge drift, not a cell defect. The gas gauge IC is still running the discharge model it built against the old, degraded cell, so it misreads the new cell's higher capacity as a sharp drop once current starts flowing. Run the tablet down to automatic shutoff on battery power, then charge uninterrupted to 100% without using the device. That single full cycle rewrites the gauge calibration and the percentage display stabilises.

The Surface Go feels warm near the top edge while charging after the battery swap — should I be concerned?

Warmth near the top edge comes from the charge IC and voltage regulation components on the board, not the cell itself. On a new lithium-polymer cell the charge IC works slightly harder during the initial constant-current phase because the new cell presents a lower starting voltage than a partially degraded one would. This settles after the first two or three charge cycles as the IC learns the cell's internal resistance profile. If the surface stays warm to the touch but not hot, and the device does not throw a charge warning in Windows, no action is needed.

Surface Go percentage drops noticeably faster from 100% to 70% than from 70% down — what's causing that?

Lithium-polymer cells have a steeper voltage slope in the upper state-of-charge range, and the fuel gauge maps percentage to voltage, not to a perfectly linear energy curve. A newly fitted cell with no calibration history amplifies this effect because the gauge defaults to a conservative model. Discharge the tablet fully to shutoff and charge back to 100% in one uninterrupted session — after that cycle the gauge IC maps the actual discharge curve of this specific cell and the upper-range drop levels out.

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