“When powered by sunlight, how long to charge a Jackery 290 for fully efficient use? And how long will the charge last? As compared with the 100W solar panel?”
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Thank you for your question. Using the Jackery Explorer 290 (E290) with a 40 W mini solar panel: Charging Time The E290 battery capacity is ~292 Wh. With a 40 W solar panel, under optimal sunlight conditions, the estimated charging time is roughly:9.5–10ℎ𝑜𝑢𝑟𝑠 Actual time may vary depending on sunlight intensity, panel angle, and weather conditions. Compared to a 100 W solar panel, charging time would be faster:4 -5hours Battery Runtime How long the charge lasts depends on the power draw of connected devices: • 50 W device: ~4–5 hours • 100 W device: ~2.5–3 hours • 150 W device: ~1.5–2 hours 📌 Remember: Solar charging efficiency can fluctuate, and cloudy or low-light conditions may increase charging time. If you need further assistance, feel free to contact Jackery: 📧 [email protected] 📞 +1‑888‑502‑2236 (Mon–Fri, 9 AM–5 PM PST)
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