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BatteryInfoView vs Wattage: catalog facts
BatteryInfoView	Wattage
Free Freeware from NirSoft; it may not be sold or bundled with commercial products.	Free Free and open source under the GPL-3.0-or-later licence.
Windows	Linux
Battery health from designed versus full-charge capacity Timed log that also captures standby drain	Battery health and energy statistics in one window Keeps device history information
Serial number, manufacture date and cycle count only appear if the battery provides them Time estimates are based on the last 30 seconds of activity	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 8, 2026	Official website Full listing and sources Checked October 1, 2026

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