It depends. That’s my favorite Answer. Because it depends, what you are doing. If you are private user or a User of an enterprise company. You could do it on different ways:

Picture	description
	Under Settings you will find two (new) entries: Automatically pause sync when the devices is in battery saver mode Remarks: On a desktop device you do not find this entry
	With Windows 10 you will find under Setting, Battery a slider, where you will adjust, when this device will go into battery Saver mode. In the example you see, that if battery will reach only 20% then the device will switch into battery Saver Mode. That means, all OneDrive connections will be going into Pause mode automatically. You are allowed, to override these function
	So you see this as a toaster for a short time. Syncing takes more energy, therefore this will be done automatically, keeps your device running a little bit longer

As an enterprise user, the admins may set this entry as a Group Policy called

Continue syncing when devices have battery saver mode turned on

It is a Group Policy in the user configuration

This setting lets you turn off the auto-pause feature for devices that have battery saver mode turned on.

If you enable this setting, syncing will continue when users turn on battery saver mode. OneDrive will not automatically pause syncing.

If you disable or do not configure this setting, syncing will pause automatically when battery saver mode is detected and a notification will be displayed.

Users can choose not to pause syncing by clicking "Sync Anyway" in the notification. When syncing is paused, users can resume syncing by clicking the OneDrive cloud icon in the notification area of the taskbar and then clicking the alert at the top of the activity center.
Enabling this policy sets the following registry key value to 1.

[HKCU\SOFTWARE\Policies\Microsoft\OneDrive]"DisablePauseOnBatterySaver"=dword:00000001

Remarks: Keep in mind, that the group policy is working in the other direction

Source: Microsoft Docs

---

Picture	description
	Under Settings you will find two (new) entries:           Automatically pause sync when this device is on a metered network I have one example for you. In German Highspeed Railways called ICE all SSID’s in each ICE have the same name: WIFIonICE That’s good, because you may always connect automatically. But there are two things to consider: That’s most of the time a bad connection. And in second class you only have for your connection 200 MB volume
	First: You should select this connection to a metered connection: Settings – Network & Internet – Wi-Fi – Manage Know Networks Scroll down to the network, you want to set as Metered Network Klick on Properties, then activate Set as metered connection

Again, an administrator may set this function via Group Policy called:

Continue syncing on metered networks

It is a Group Policy in the user configuration and this setting lets you turn off the auto-pause feature when devices connect to metered networks.

If you enable this setting, syncing will continue when devices are on a metered network. OneDrive will not automatically pause syncing.

If you disable or do not configure this setting, syncing will pause automatically when a metered network is detected and a notification will be displayed. Users can choose not to pause by clicking "Sync Anyway" in the notification. When syncing is paused, users can resume syncing by clicking the OneDrive cloud icon in the notification area of the taskbar and then clicking the alert at the top of the activity center.

Enabling this policy sets the following registry key value to 1.
[HKCU\SOFTWARE\Policies\Microsoft\OneDrive DisablePauseOnMeteredNetwork"=dword:00000001

Remarks: Keep in mind, that the group policy is working in the other direction

Source: Microsoft Docs