How Much Your Surface Battery Capacity in mAh?
In this guide, you will learn how to convert your Surface battery capacity in mWh to mAh and know about battery information of all Surface models.
Note Updated on June 17, 2017: We have updated this article to include battery capacity of the new Surface Laptop and new Surface Pro.
You might have a misunderstanding about battery capacity when it comes to different units. Most of the time, in mobile phones, power bank, mobile’s battery mostly defined by mAh (milliamp-hours). For Microsoft Surface family it might have noticed that the battery capacity is defined as mWh (milliwatts-hours). In this tip, we will guide you how to convert from mWh to mAh and vice-versa.
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How to Convert mWh to mAh?
In order to convert from mWh (milliwatt-hours) to mAh (milliamp-hours), we have a formula as below:
(mAh) = (mWh) / (V)
Example: Surface Pro 3 has a battery capacity of 42 Wh or 42,000 mWh has battery capacity in mAh as below:
42,000 mWh / 7.5 V = 5,600 mAh
So that, the Surface Pro 3 has a battery capacity of 5,600 mAh.
Surface Battery Capacity
Here is the list of battery capacity of all Microsoft Surface in measured of both mWh and mAh:
|Surface RT||31.5 Wh||31,500 mWh||4,200 mAh|
|Surface Power Cover||30.0 Wh||30,000 mWh||4,000 mAh|
|Surface 2||31.5 Wh||31,500 mWh||4,200 mAh|
|Surface 3||28.0 Wh||28,000 mWh||3,733 mAh|
|Surface Pro||42.0 Wh||42,000 mWh||5,600 mAh|
|Surface Pro 2||42.0 Wh||42,000 mWh||5,600 mAh|
|Surface Pro 3||42.0 Wh||42,000 mWh||5,600 mAh|
|Surface Pro 4||38.2 Wh||38,200 mWh||5,093 mAh|
|Surface Book||70.0 Wh||70,000 mWh||9,333 mAh|
|Surface Book (Clipboard)||18.0 Wh||18,000 mWh||2,387 mAh|
|Surface Book (Base)||51.0 Wh||51,000 mWh||6,800 mAh|
|Surface Book (Performance Base)||63.0 Wh||63,000 mWh||8,400 mAh|
|Surface Laptop||45.2 Wh||45,200 mWh||5,970 mAh (45,200 / 7.57v)|
|Surface Pro (2017)||45.0 Wh||45,000 mWh||5,944 mAh|