Side by side
BatteryBar vs Telegraf
Both stand on hardware monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
BatteryBar provides taskbar battery monitoring and estimated remaining time, with Pro adding alerts and configuration options. Check the listed Windows requirements and whether the battery reports rate data before relying on those readings.
Visit BatteryBar Free plan Open source APILinuxMac+3
Choose the free open source edition for personal, small, or simple metric pipelines across infrastructure, applications, and devices. Consider Enterprise if you need centralized management, fleet visibility, access controls, or Enterprise Support; its plans start at $18,000 / year.
Visit TelegrafThe facts
| BatteryBar | Telegraf | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Windows | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | BatteryBar Pro: $4, paid once | Telegraf Enterprise: $18,000 a year |
| Plans published | 1 | 3 |
| Maker | Not published | Not published |
| Website | osirisdevelopment.com | influxdata.com |
| On hardware monitoring software | #17 of 59 | #4 of 59 |
BatteryBar: what it does well
- Free version is available.
- Displays battery details in the taskbar popup.
- Uses historical data to estimate remaining time.
- Pro adds low and critical battery alerts.
- Pro includes 20 configurable settings.
What to know first
- Listed supported systems are Windows XP, Vista, or 7.
- A system battery is required.
- Windows XP requires .NET Framework 2.0.
- Some batteries do not report charge or discharge rates.
Telegraf: what it does well
- Open source edition is free.
- 400+ community-tested plugins connect data sources and destinations.
- Collects real-time IoT and edge signals via MQTT, Modbus, and OPC-UA.
- Can monitor Kubernetes, Docker, and Prometheus.
- Enterprise adds fleet visibility and role-based access control.
What to know first
- Open source Telegraf has no native access control.
- Enterprise starts at $18,000 / year.
- Free Controller is limited to 20 configurations and 100 reporting agents.
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