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BatteryCare vs Wattage: catalog facts
BatteryCare	Wattage
Free Freeware.	Free Free and open source under the GPL-3.0-or-later licence.
Windows	Linux
Detailed battery wear and capacity information Automatic power plan switching on AC or battery	Battery health and energy statistics in one window Keeps device history information
Windows only Some features target older Windows versions such as Aero themes	Linux only Focused on power devices, not general hardware monitoring
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.