Battery Limit settings

Battery Limit option is a UEFI setting that changes how the Surface device battery is charged and may prolong its longevity. This setting is recommended in cases in which the device is continuously connected to power, for example when devices are integrated into kiosk solutions.

Battery Limit information

Setting the device on Battery Limit changes the protocol for charging the device battery. When Battery Limit is enabled, the battery charge will be limited to 50% of its maximum capacity. The charge level reported in Windows will reflect this limit. Therefore, it will show that the battery is charged up to 50% and will not charge beyond this limit. If you enable Battery Limit while the device is above 50% charge, the Battery icon will show that the device is plugged in but discharging until the device reaches 50% of its maximum charge capacity.

Adding the Battery Limit option to Surface UEFI will require a Surface UEFI firmware update, which will be made available through Windows Update or via the MSI driver and firmware packages on the Microsoft Download Center. Check Enable "Battery Limit" for Surface devices that have to be plugged in for extended periods of time for the specific Surface UEFI version required for each device and supported devices. Currently, Battery Limit is only supported on Surface Pro 4 and Surface Pro 3. However, the setting will be available in the future on other Surface device models.

Enabling Battery Limit in Surface UEFI (Surface Pro 4 and later)

The Surface UEFI Battery Limit setting can be configured by booting into Surface UEFI (Power + Vol Up when turning on the device). Choose boot configuration, and then, under Advanced Options, toggle Enable Battery Limit Mode to On.

Screenshot of Advanced options

Enabling Battery Limit in Surface UEFI (Surface Pro 3)

The Surface UEFI Battery Limit setting can be configured by booting into Surface UEFI (Power + Vol Up when turning on the device). Choose Kiosk Mode, select Battery Limit, and then choose Enabled.

Screenshot of Advanced options

Screenshot of Advanced options

Enabling Battery Limit using Surface Enterprise Management Mode (SEMM) or Surface Pro 3 firmware PowerShell scripts

The Surface UEFI battery limit is also available for configuration via the following methods:

Using Microsoft Surface UEFI Configurator

To configure Battery Limit mode, set the Kiosk Overrides setting on the Advanced Settings configuration page in SEMM (Surface Pro 4 and later).

Screenshot of advanced settings

Using Surface UEFI Manager PowerShell scripts

The battery limit feature is controlled via the following setting:

407 = Battery Profile

Description: Active management scheme for battery usage pattern

Default: 0

Set this to 1 to enable Battery Limit.

Using Surface Pro 3 firmware tools

The battery limit feature is controlled via the following setting:

Name: BatteryLimitEnable

Description: BatteryLimit

Current Value: 0

Default Value: 0

Proposed Value: 0

Set this to 1 to enable Battery Limit.

Note

To configure this setting, you must use SP3_Firmware_Powershell_Scripts.zip.