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Microsoft
Microsoft

Microsoft Surface Book 2 G3HTA049H Keyboard Base Battery

Brand:
Other
Capacity Wh:
57.3 Wh
Nominal Voltage:
11.36 V

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Manufacturer: Microsoft Last updated: 2026-09-28

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Microsoft Surface Book 2 G3HTA049H Keyboard Base Battery Review

Microsoft Surface Book 2 G3HTA049H (also G3HTA050H) keyboard base battery, an 11.36V 57.3Wh (5042mAh) pack for the Surface Book 2 13.5-inch base model 1835 and Surface Book 3 13.5-inch bases 1907 and 1909.

This is the larger of the Surface Book 2's two batteries, in the keyboard base. iFixit notes it does not fit the Surface Book 3 13.5-inch base model 1900. The screen half has its own 18Wh G3HTA044H battery.

What to check before you buy

Check the base model number printed under the hinge: 1835 (Surface Book 2 13.5) or 1907/1909 (Surface Book 3 13.5) take this pack. Base model 1900 does not.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

  • Surface Book 2 13.5 keyboard base battery replacement

Not for

  • Surface Book 3 13.5 base model 1900
  • Surface Book 2 15-inch

Specifications

What these specs mean
BrandOther
Battery Model CodeG3HTA049H
Nominal Voltage11.36 V
Capacity Wh57.3 Wh
Capacity mAh5042 mAh
Capacity BasisSeller Claim
Compatible ModelsMicrosoft Surface Book 2 13.5 keyboard base (1835), Surface Book 3 13.5 keyboard base (1907, 1909)
Replaces Part NumbersG3HTA050H