Microsoft Surface Laptop Studio Compatible Battery 11.38V 4900mAh
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Microsoft Surface Laptop Studio Compatible Battery 11.38V 4900mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Microsoft Surface Laptop Studio Compatible Battery 11.38V 4900mAh - is backordered and will ship as soon as it is back in stock.
Voltage
11.38V
Amp
4900mAh
Microsoft Surface Laptop Studio 1964 — 11.38V Li-Polymer Replacement Battery (G3HTA071H)
This is a Li-Polymer replacement battery for the Microsoft Surface Laptop Studio 1964 14.4-inch laptop. It replaces OEM part number G3HTA071H and fits both the full "Surface Laptop Studio 1964 14.4"" and "Surface Laptop Studio 1964" variants. Rated at 11.38V and 4900mAh (55.76Wh), it restores portable power to units where the original cell has degraded.
- Surface Laptop Studio 1964 fit: Both listed model variants share the same battery bay geometry, connector pinout, and BMS handshake protocol — the G3HTA071H form factor covers them without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Surface Laptop Studio 1964 unit, confirming BMS communication, charge acceptance to full capacity, and correct voltage reporting under CPU and display load.
- Post-install calibration on the Surface Laptop Studio: After fitting, run the laptop down to hibernate-cutoff on a real workload, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears in Surface diagnostics after every cell swap.
BIOS reporting poor battery health immediately after fitting the G3HTA071H
The Surface BIOS reads health data from the EEPROM on the battery's BMS board. When a new cell is installed, the EEPROM contains factory-default data that doesn't match the BIOS's stored discharge history from the old cell. This mismatch triggers a "poor health" or "replace battery" flag even though the cell is new. One full discharge-to-hibernate followed by an uninterrupted charge to 100% lets the BIOS re-learn the cell's actual capacity baseline and clears the flag.
Laptop shuts down at 20–30% charge shown after battery replacement
This happens when the fuel gauge IC hasn't yet calibrated against the new cell's actual voltage curve. The Surface firmware maps a reported percentage to a voltage threshold — if that map is still tuned to the old, degraded cell, it miscalculates the cutoff point. Under full CPU and display load, the new cell's voltage drops faster than the stale map predicts, triggering a hard shutdown. Run two full discharge-to-hibernate and full-charge cycles to recalibrate the fuel gauge; the shutdown percentage will stabilise once the IC has accurate voltage-curve data, typically above 11.5V at the point of cutoff.
Compatible Models
Replaces Part Numbers
Technical Specifications
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
Why does Windows show the replacement battery Wh rating as different from the 55.76Wh spec?
The Wh figure Windows reads comes from a static value stored in the battery's EEPROM — this is the rated capacity written at the factory, not a live measurement. New cells occasionally carry a slightly different EEPROM value depending on the firmware revision on the BMS board, even when the actual chemistry is identical. This doesn't affect real-world charge capacity. To confirm the cell is performing correctly, check the full charge capacity in Battery Report (run `powercfg /batteryreport` in Command Prompt) after two full calibration cycles — it should read at or close to 55,760mWh.
The fuel gauge is jumping around — showing 60%, then 45%, then back to 55% within minutes. Is the cell faulty?
No — the fuel gauge IC needs calibration cycles against the new cell. The Surface's battery reporting firmware learned the old cell's voltage-to-capacity curve over many cycles, and that map doesn't transfer to the replacement cell. The IC is interpolating against incorrect reference data, which causes erratic percentage jumps. Run two full discharge-to-hibernate cycles followed by uninterrupted charges to 100%, and the readings will stabilise as the IC builds a new accurate curve.
Charge stops at 80% and won't go higher — is this a fault with the replacement cell?
Almost certainly not the cell. The Surface BIOS includes a firmware-controlled charge limit that caps charging at 80% when "Battery limit" mode is active in Surface settings or via the UEFI. This is a Microsoft power management feature, not a battery fault. Open the Surface app or navigate to UEFI settings (hold Volume Up + Power at boot) and confirm the battery limit toggle is off — once disabled, the cell will charge to 100%.
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