Brand New Original Microsoft Surface Book 2 Battery. Battery Model: G3HTA040H / G3HTA041H. Capacity: 62.2Wh / 5473mAh, Voltage: 11.36V, 4 cells, Lithium-Ion type. Compatible with Microsoft Surface Book 2 Gen 15 Inch Keyboard. Replacement Part Numbers: G3HTA040H and G3HTA041H. Ideal for replacing an old, weak or damaged battery and restoring reliable performance. Please confirm your original battery model and part number before purchasing to ensure proper compatibility. Brand-new condition and ready for installation. Contact us for availability.