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Battery, demystified

Battery health science, practical tips, and the occasional look behind the app.

Stop ignoring battery warnings: designing alerts you'll actually notice

macOS gives you two battery warnings you've learned to dismiss. Here's how to build alerts you won't.

Lithium-ion batteries hate two things: heat and sitting full. Here's the science, and the simple habit that slows the wear.

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macOS 14.0 or later · Apple Silicon & Intel