---
title: "readAttributeBatPercentRemaining(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterpowersource/readattributebatpercentremaining(completion:)"
---

# readAttributeBatPercentRemaining(completion:)

## Declaration

```swift
func readAttributeBatPercentRemaining(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeBatPercentRemaining() async throws -> NSNumber
```