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Microsoft Surface Pro 7 Replacement Battery G3HTA061H 7.57V

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From $60.99 USD $75.99
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Fits Microsoft Surface Pro 7 tablet, replaces OEM part G3HTA061H battery.
This 7.57V 5650mAh Li-Polymer cell delivers the capacity your Surface Pro 7 needs after original degradation reduces runtime and charge hold.
Connector seats flat against the internal dock with no locking tab — orientation marked on the cell body aligns with slot alignment.
We cycled this pack through three full charge-discharge runs on a Surface Pro 7 unit; BMS accepted the cell without negotiation delay or thermal event.
After installation, discharge the tablet fully to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge calibration and corrects inaccurate percentage display after the swap.
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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

7.57V

Amp

5650mAh

Microsoft Surface Pro 7 — 7.57V Li-Polymer Replacement Battery (G3HTA061H)

This is a 7.57V, 5650mAh (42.77Wh) Li-Polymer battery for the Microsoft Surface Pro 7 and Surface Pro 7 1866. It replaces OEM part number G3HTA061H. The battery slots into the internal bay and connects to the same charge controller and fuel gauge IC as the original cell.

  • Surface Pro 7 and 7 1866 compatibility: Both model numbers share the same chassis geometry, connector pinout, and BMS handshake protocol — one cell fits both. The charge IC communicates over the same SMBus line as the factory unit.
  • Bench tested on actual hardware: We ran charge and discharge cycles on the Surface Pro 7 platform. The BMS accepted charge handshake on first connection, balanced across cells without fault codes, and held voltage within spec through load transitions from idle to display-on plus active WiFi.
  • Fuel gauge recalibration after swap: After installing this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. The fuel gauge IC calibrates its internal model against the new cell's voltage curve — skipping this step causes Windows to report incorrect percentages from day one.

Surface Pro 7 shutting down at 15–25% remaining

The Surface Pro 7 combines a high-resolution display and always-on WiFi on a single power rail. Under combined load, voltage drops sharply below 3.4V per cell — faster than the fuel gauge predicts from resting voltage. The BMS reads this as a low-voltage cutoff condition and shuts down before the reported percentage reaches zero. Running one full calibration cycle after installation gives the fuel gauge accurate data to predict these voltage drops under real load conditions.

Fast charging not available after battery replacement

The Surface Pro 7 uses USB Power Delivery negotiation between the charger and the charge IC on the battery. After a battery swap, the charge IC on the new cell has not yet completed an accepted charge cycle with the system firmware. Until that first full cycle completes, the system defaults to a lower charge rate as a protection measure. Plug in the original Microsoft Surface Connect charger, let the device charge fully without interruption, and USB-PD fast charge negotiation restores on the next connection.

Compatible Models

Surface Pro 7 Surface Pro 7 1866

Replaces Part Numbers

G3HTA061H

Technical Specifications

Voltage7.57V
Amp Hours5650mAh
Capacity5650mAh
Rate42.77Wh
Net Weight193g /6.81 oz
Gross Weight333g /11.75 oz
Approximate Weight333g /11.75 oz
Dimension 227.70 x 106.00 x 4.00mm

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

Windows is showing 80% battery right after I charged it to full — why is the percentage wrong after I swapped the battery?

The fuel gauge IC in the Surface Pro 7 stores a learned voltage curve from the old cell. When a new cell goes in, that stored model no longer matches actual cell chemistry, so Windows reports stale data. Run one complete discharge to automatic shutoff, then charge uninterrupted to 100%. After that single cycle, the fuel gauge IC recalibrates its curve against the new cell and percentage reporting returns to normal.

My Surface Pro 7 is shutting itself off at around 20% — it was never doing this before the battery swap.

Under combined display and WiFi load, voltage drops sharply below 3.4V per cell before the fuel gauge expects it to. The BMS treats this as a low-voltage cutoff and shuts down while Windows still shows charge remaining. This happens because the fuel gauge IC is still calibrated to the old cell's discharge curve. Complete one full discharge-to-shutoff and uninterrupted charge-to-100% cycle — after that, the gauge accurately predicts voltage drop under load and shutdowns at 15–25% stop.

The Surface Pro 7 feels warm near the back while it's charging after I put in the replacement battery — is something wrong?

Warmth during charging on a new cell is normal. The charge IC runs a conditioning phase on the first few cycles, pushing a slightly higher current while it characterises the new cell's internal resistance. This generates more heat than steady-state charging on a broken-in cell. Surface temperature should stay below 40°C to the touch — if the device gets uncomfortably hot or triggers a Windows battery warning, disconnect the charger and check that the battery connector is fully seated flat before reconnecting.

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