Low battery warning

If a phone dies in the middle of a round, that person disappears from the map. The low battery warning tells everyone before that happens. It is always on and needs no setting.

How it works

• When a device's battery drops to 15 percent or below and it is not charging, everyone sees a notice with the name and battery level.
• The person concerned sees their own notice to charge the device.
• The warning appears at most every 10 minutes per person. The app only warns again after the battery has been above 25 percent or has been charged.
• The warning applies during the head start and the running round.

Where it works

The battery level can only be read in Chromium-based browsers, for example Chrome, Edge and Samsung Internet. This feature is missing on the iPhone (Safari) and in Firefox. Such devices send no battery warning, the other devices in the group are not affected. For these devices the radio silence warning helps once positions stop arriving.

Privacy

Only a percentage is transmitted, and only when the battery is low. Nothing is stored and no history is created.