Microsoft Surface Book 2/3 15-inch G3HTA040H Keyboard Base Battery
- Brand:
- Other
- Capacity Wh:
- 62.2 Wh
- Nominal Voltage:
- 11.36 V
Quick facts
G3HTA040H is a battery that fits 2 laptop models: Microsoft Surface Book 2 15-inch keyboard base, Surface Book 3 15-inch keyboard base.
| Part number | G3HTA040H |
|---|---|
| Part type | Battery |
| Capacity | 62.2 Wh |
| Voltage | 11.36 V |
| Last checked | 2026-09-28 |
Compatible models (2)
- Microsoft Surface Book 2 15-inch keyboard base
- Surface Book 3 15-inch keyboard base
Laptops compatible with G3HTA040H
Fits 2 laptops: 0 OEM confirmed, 2 seller listed, 0 reported by users.
- Microsoft Surface Book 2 15-inch keyboard baseSeller listedMatched on: part number G3HTA040H
- Surface Book 3 15-inch keyboard baseSeller listedMatched on: part number G3HTA040H
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Microsoft Last updated: 2026-09-28
Microsoft Surface Book 2/3 15-inch G3HTA040H Keyboard Base Battery Review
Microsoft G3HTA040H keyboard base battery, an 11.36V 62.2Wh (5473mAh) pack for the Surface Book 2 and Surface Book 3 15-inch.
This is the keyboard base battery for the 15-inch Surface Book 2 and 3. The 15-inch screen half has a separate 3500mAh 7.57V tablet battery that iFixit sells without a published part code. iFixit's listing also names the Surface Laptop 3 15-inch, but that laptop uses a 7.55V DYNT02 pack, so we have left it off the compatible list.
What to check before you buy
Confirm you have the 15-inch Surface Book 2 or 3. The 13.5-inch models take the G3HTA049H base battery instead.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Surface Book 2 and 3 15-inch keyboard base battery replacement
Not for
- Surface Book 2 13.5-inch
- Surface Laptop 3
Specifications
What these specs mean| Brand | Other |
|---|---|
| Battery Model Code | G3HTA040H |
| Nominal Voltage | 11.36 V |
| Capacity Wh | 62.2 Wh |
| Capacity mAh | 5473 mAh |
| Capacity Basis | Seller Claim |
| Compatible Models | Microsoft Surface Book 2 15-inch keyboard base, Surface Book 3 15-inch keyboard base |