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<h1 align="center">
macos-battery-exporter
</h1>
<p align="center">
<strong>
Prometheus exporter for detailed battery metrics on macOS.
</strong>
</p>
<p align="center">
<a href="https://github.com/jimeh/macos-battery-exporter/releases"><img src="https://img.shields.io/github/v/tag/jimeh/macos-battery-exporter?label=release" alt="GitHub tag (latest SemVer)"></a>
<a href="https://pkg.go.dev/github.com/jimeh/macos-battery-exporter"><img src="https://img.shields.io/badge/%E2%80%8B-reference-387b97.svg?logo=go&logoColor=white" alt="Go Reference"></a>
<a href="https://github.com/jimeh/macos-battery-exporter/issues"><img src="https://img.shields.io/github/issues-raw/jimeh/macos-battery-exporter.svg?style=flat&logo=github&logoColor=white" alt="GitHub issues"></a>
<a href="https://github.com/jimeh/macos-battery-exporter/pulls"><img src="https://img.shields.io/github/issues-pr-raw/jimeh/macos-battery-exporter.svg?style=flat&logo=github&logoColor=white" alt="GitHub pull requests"></a>
<a href="https://github.com/jimeh/macos-battery-exporter/blob/main/LICENSE"><img src="https://img.shields.io/github/license/jimeh/macos-battery-exporter.svg?style=flat" alt="License Status"></a>
</p>
A Prometheus exporter for macOS battery information, exposing wide range of
details available from `ioreg` about batteries. Includes a lot more details than
what `node_exporter` supports via its `node_power_supply_*` metrics.
## Installation
### Manually
Binary releases are available on the
[Releases](https://github.com/jimeh/macos-battery-exporter/releases) page.
### Homebrew
You can install it from the [`jimeh/tap`](https://github.com/jimeh/homebrew-tap)
Tap:
```bash
brew install jimeh/tap/macos-battery-exporter
```
#### Service
The homebrew formula has a service configuration, which can be started with:
```bash
brew services start macos-battery-exporter
```
After which battery metrics are available on
[`http://localhost:9108/metrics`](http://localhost:9108/metrics).
### Go
```bash
go install github.com/jimeh/macos-battery-exporter@latest
```
## Usage
### Help
```bash
macos-battery-exporter -h
```
```
Usage of macos-battery-exporter:
-b string
Bind address to run server on (default "127.0.0.1")
-l string
Log level (default "info")
-n string
Namespace for metrics (default "macos")
-o string
Output file to write to in Prometheus format
-p int
Port to run server on (default 9108)
-s Run as a Prometheus metrics server
-v Print version and exit
```
### Print to STDOUT
```bash
macos-battery-exporter
```
```ini
# HELP macos_battery_cell_disconnect_count Total number of times a battery cell has been disconnected.
# TYPE macos_battery_cell_disconnect_count gauge
macos_battery_cell_disconnect_count{serial="ZTMDHJEZ8JKMYVAJKU"} 0
# HELP macos_battery_charge_rate_amps Current charge rate in Ah.
# TYPE macos_battery_charge_rate_amps gauge
macos_battery_charge_rate_amps{serial="ZTMDHJEZ8JKMYVAJKU"} -1.004
# HELP macos_battery_charge_rate_watts Current charge rate in Wh.
# TYPE macos_battery_charge_rate_watts gauge
macos_battery_charge_rate_watts{serial="ZTMDHJEZ8JKMYVAJKU"} -12.712648
# HELP macos_battery_count Total number of batteries.
# TYPE macos_battery_count gauge
macos_battery_count 1
# HELP macos_battery_current_capacity_amps Current charge capacity in Ah.
# TYPE macos_battery_current_capacity_amps gauge
macos_battery_current_capacity_amps{serial="ZTMDHJEZ8JKMYVAJKU"} 5.39
# HELP macos_battery_current_capacity_watts Current charge capacity in Wh.
# TYPE macos_battery_current_capacity_watts gauge
macos_battery_current_capacity_watts{serial="ZTMDHJEZ8JKMYVAJKU"} 68.24818
# HELP macos_battery_current_percentage Current battery charge percentage.
# TYPE macos_battery_current_percentage gauge
macos_battery_current_percentage{serial="ZTMDHJEZ8JKMYVAJKU"} 91
# HELP macos_battery_cycle_count Current battery cycle count.
# TYPE macos_battery_cycle_count counter
macos_battery_cycle_count{serial="ZTMDHJEZ8JKMYVAJKU"} 15
# HELP macos_battery_design_capacity_amps Design capacity in Ah.
# TYPE macos_battery_design_capacity_amps gauge
macos_battery_design_capacity_amps{serial="ZTMDHJEZ8JKMYVAJKU"} 6.249
# HELP macos_battery_design_capacity_watts Design capacity in Wh.
# TYPE macos_battery_design_capacity_watts gauge
macos_battery_design_capacity_watts{serial="ZTMDHJEZ8JKMYVAJKU"} 79.124838
# HELP macos_battery_fully_charged Indicates if the battery is fully charged.
# TYPE macos_battery_fully_charged gauge
macos_battery_fully_charged{serial="ZTMDHJEZ8JKMYVAJKU"} 0
# HELP macos_battery_health Battery health as a percentage (0-100%).
# TYPE macos_battery_health gauge
macos_battery_health{serial="ZTMDHJEZ8JKMYVAJKU"} 100
# HELP macos_battery_info Basic details about the battery.
# TYPE macos_battery_info gauge
macos_battery_info{built_in="true",device_name="ayzo3hgs",serial="ZTMDHJEZ8JKMYVAJKU"} 1
# HELP macos_battery_is_charging Indicates if the battery is currently charging.
# TYPE macos_battery_is_charging gauge
macos_battery_is_charging{serial="ZTMDHJEZ8JKMYVAJKU"} 0
# HELP macos_battery_max_capacity_amps Design capacity in Ah.
# TYPE macos_battery_max_capacity_amps gauge
macos_battery_max_capacity_amps{serial="ZTMDHJEZ8JKMYVAJKU"} 6.271
# HELP macos_battery_max_capacity_watts Design capacity in Wh.
# TYPE macos_battery_max_capacity_watts gauge
macos_battery_max_capacity_watts{serial="ZTMDHJEZ8JKMYVAJKU"} 79.403402
# HELP macos_battery_temperature_celsius Current battery temperature in °C.
# TYPE macos_battery_temperature_celsius gauge
macos_battery_temperature_celsius{serial="ZTMDHJEZ8JKMYVAJKU"} 30.53
# HELP macos_battery_time_remaining_seconds Estimated time remaining until battery is fully charged or discharged.
# TYPE macos_battery_time_remaining_seconds gauge
macos_battery_time_remaining_seconds{serial="ZTMDHJEZ8JKMYVAJKU"} 14040
# HELP macos_battery_voltage_volts Current battery voltage in V.
# TYPE macos_battery_voltage_volts gauge
macos_battery_voltage_volts{serial="ZTMDHJEZ8JKMYVAJKU"} 12.662
```
### Write to File
```bash
macos-battery-exporter -o battery.txt
```
### Run Server
```bash
macos-battery-exporter -s
```
```bash
curl http://localhost:9108/metrics
```
## License
[MIT](https://github.com/jimeh/macos-battery-exporter/blob/main/LICENSE)
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