Use Cases

Short answer: A rural cabin with a fridge, lights, TV, and basic tools needs 2,000–4,000 Wh daily. Without solar recharge, you need 4,000–8,000 Wh stored capacity for a 2-day buffer. With a 400W solar panel in good conditions, a 2,000–3,000 Wh system runs indefinitely for basic loads. A well pump changes the equation significantly. Cabin…

Short answer: For a beach day, you need to power phones, a bluetooth speaker, possibly a portable fan, and a small cooler. Total consumption is typically 100–400 Wh. A 500–800 Wh solar generator covers a full day with margin. You don’t need anything larger — bigger units are heavier than necessary and overkill for this…