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README.md

battery Build Status Go Report Card GoDoc

Cross-platform, normalized battery information library.

Gives access to a system independent, typed battery state, capacity, charge and voltage values recalculated as necessary to be returned in mW, mWh or V units.

Currently supported systems:

  • Linux 2.6.39+
  • OS X 10.10+
  • Windows XP+
  • FreeBSD
  • DragonFlyBSD
  • NetBSD
  • OpenBSD
  • Solaris

Installation

$ go get -u github.com/distatus/battery

Code Example

import (
	"fmt"

	"github.com/distatus/battery"
)

func main() {
	batteries, err := battery.GetAll()
	if err != nil {
		fmt.Println("Could not get battery info!")
		return
	}
	for i, battery := range batteries {
		fmt.Printf("Bat%d: ", i)
		fmt.Printf("state: %f, ", battery.State)
		fmt.Printf("current capacity: %f mWh, ", battery.Current)
		fmt.Printf("last full capacity: %f mWh, ", battery.Full)
		fmt.Printf("design capacity: %f mWh, ", battery.Design)
		fmt.Printf("charge rate: %f mW, ", battery.ChargeRate)
		fmt.Printf("voltage: %f V, ", battery.Voltage)
		fmt.Printf("design voltage: %f V\n", battery.DesignVoltage)
	}
}

CLI

There is also a little utility which - more or less - mimicks the GNU/Linux acpi -b command.

Installation

$ go get -u github.com/distatus/battery/cmd/battery

Usage

$ battery
BAT0: Full, 95.61% [Voltage: 12.15V (design: 12.15V)]
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