Shopping for a portable solar power generator can feel like decoding a secret language of watts, watt‑hours, and acronyms. This guide unpacks power, capacity, and efficiency so you can match real devices to real runtimes without guesswork. We’ll translate specs into plain steps, show simple math you can reuse, and flag trade‑offs you’ll actually notice. If you want reliable, quiet energy for camping, emergency backup, or van life, you’re in the right place.