Battery Health Viewer

Battery Health Viewer shows the real condition of your laptop battery: design capacity, actual full-charge capacity, wear, cycle count, voltage, charge/discharge power and estimated time remaining. A lightweight Linux alternative to BatteryInfoView for checking how worn a battery is.

Everything is read from the Linux kernel power-supply interface (/sys/class/power_supply) and normalised to watt-hours; health is full-charge capacity divided by design capacity. One health record per day is kept locally so you can see the trend. On machines without a battery (desktops, servers, virtual machines) the app says so and still shows the AC adapter, raw power-supply attributes and system power/thermal context.

Key Features:
- Health, wear %, charge level, status, chemistry, manufacturer, model and serial when the firmware exposes them.
- Live charge-level and power-draw charts sampled every 5 seconds.
- Raw sysfs attribute browser for every power supply plus system power context (CPU governor, thermal zones, sleep states).
- Daily health history log and exportable TXT report.
- Bilingual donate banner (Vietnamese / English).

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by NirSoft.