Microsoft Surface Laptop 1 (Model 1866) Battery 

Microsoft Surface Laptop 1 (Model 1866) Battery 

The Microsoft 1866 battery is a premium lithium-polymer internal replacement battery, specifically designed for the Microsoft Surface Laptop 1. This battery restores your device’s original performance, offering long-lasting power and consistent reliability for work, school, or creative use.

Key Features:

• Battery Type: Lithium-Polymer (Li-Po)

• Voltage: 7.57V

• Capacity: 5087mAh to 5400mAh

• Watt-hour (Wh): 45.2Wh to 47.0Wh

• Number of Cells: 2-cell

• Color: Black (internal component)

• Average Runtime: 5 to 8 hours (depending on usage and settings)

• Recharge Cycles: Up to 500

Compatible Part Numbers:

• G3HTA038H

• G3HTA036H

• 1866

Compatible Device:

• Microsoft Surface Laptop (1st Gen, Model 1866)

Note: This is an internal battery that requires careful installation. Professional installation is recommended to avoid damage to internal components.