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2026
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Most small solar generators store 26-36 Wh per pound, so brand barely changes the weight. Here's the weight-to-runtime math for 11 compact units.
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A 200W camping panel puts ~700Wh a day into a battery in clear summer sun but ~100Wh under overcast. What that runs, from phones to a 12V fridge.
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A 100W foldable panel realistically delivers ~78W at best and ~50W laid flat on hot ground. The loss stack behind that, and real charge times.
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NEC Article 690 and UL 1741 are the two codes every home solar or battery-backup system must clear. What each actually requires, what an inspector checks, and how battery retrofits change the math.
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A 3,000Wh solar generator runs a fridge about 17 hours, a laptop 39, a window AC just 2.8 — the real appliance-runtime math most buying guides skip.