---
title: "init(batteryLevel:)"
framework: carplay
role: symbol
role_heading: Initializer
path: "carplay/cproutedetail/init(batterylevel:)"
---

# init(batteryLevel:)

Creates additional route information for battery percentage.

## Declaration

```swift
convenience init(batteryLevel: Double)
```

## Parameters

- `batteryLevel`: The battery level as a percentage from 0.0 (empty) to 100.0 (full). Values outside this range will be clamped.

## Return Value

Return Value A new @c CPRouteDetail instance representing the battery level

## Discussion

Discussion Use this method to display the estimated battery level upon arrival at the destination for electric vehicles. Display as a percentage (0.0 to 100.0) to show state of charge. Percentage-based battery display is familiar to most users and provides an intuitive understanding of remaining range. The system formats this as a percentage with appropriate visual indicators. Values are clamped to the 0.0-100.0 range if necessary. note: For more technical users or when absolute capacity is more relevant, consider using @c routeDetailWithKilowattHours: to show energy in kilowatt-hours instead.