Battery Cycle Tracker is a desktop battery monitor for Linux laptops. A lightweight Linux alternative to BatteryCare for tracking battery wear, charge cycles and calibration needs. It reads the real kernel power-supply interface (/sys/class/power_supply).

Features:

• Live battery panel: charge level, status, AC state, voltage, power draw, and health (full-charge capacity vs design capacity) with every raw sysfs property listed.
• Persistent history log: samples charge, power and capacity to a CSV file you can export.
• Cycle tracking: shows the kernel cycle counter when the firmware reports it, plus equivalent full cycles computed from your own logged discharge.
• Calibration reminder: tells you when no deep discharge has been logged for 30 days.
• Power settings view: CPU governors, sleep states, platform profile, load and uptime.
• On machines without a battery (desktops, VMs) the app says so honestly and shows system power settings only. It does not change any power setting.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by the authors or owners of BatteryCare.