10 Best Ecoflow Solar Generators 2025 in the United States

The EF ECOFLOW Solar Generator Delta 3 is a powerful and versatile solar generator suitable for home backup, camping, and RV use. It features a 1024Wh lithium iron phosphate (LFP) battery, known for its long lifespan—lasting up to 10 years with minimal capacity loss after thousands of charge cycles. The capacity can be expanded up to 5kWh by connecting additional battery packs, making it ideal for users needing more power over time.

This generator delivers 1800W continuous AC power and 100W through USB-C, allowing you to operate multiple devices or appliances simultaneously—up to 13 at once, including some power-hungry ones using its X-Boost feature. Charging is impressively fast, fully charging in under an hour via AC or solar input, with a 220W bifacial solar panel included. The bifacial panel is more efficient than typical ones, collecting energy from both sides to speed up outdoor charging.

Portability is reasonable for its category, weighing about 43 pounds, which is manageable but not ultra-light, making it best for users who can carry it short distances or transport it by vehicle. It offers various outlets, including AC and USB options, covering most device needs, and comes with multiple charging cables and a protective bag for added convenience. However, the size and weight make it less suited for backpacking or very remote treks. Additionally, since the solar panel and power station ship separately, setup may require some assembly. This model is a strong option for those seeking reliable, fast solar charging with robust power output and long battery life, ideal for emergency backup and outdoor activities where vehicle transport is possible.

The EF ECOFLOW Solar Generator DELTA2 is a robust option for anyone looking for a portable, eco-friendly power source, ideal for camping, RVs, or home backup. One of its standout features is the impressive battery capacity of 1kWh, expandable up to 3kWh, allowing users to tailor their power needs. With a power output of 1800W, it can run a variety of appliances, making it suitable for most off-grid scenarios. The inclusion of a 220W bifacial solar panel is a significant plus, as it captures more sunlight, enhancing the generator's efficiency and reducing charging time.

Portability is another strength, as it weighs 58 pounds and is designed for easy transport. The multiple charging options, including AC, car, and solar, add convenience and flexibility for users in different settings.

However, there are some drawbacks. While the 15 outlets provide plenty of connectivity, the weight may still be cumbersome for some users, particularly those who need to carry it over long distances. Additionally, the initial investment might be higher than other portable power stations, which could be a consideration for budget-conscious buyers. Although the LFP battery is designed to last significantly longer than traditional batteries, it may still require careful management to maximize its lifespan.

The EF ECOFLOW Solar Generator DELTA 2 Max is a versatile power solution, particularly appealing for outdoor enthusiasts and those who need a reliable backup for household power. Its standout feature is the impressive battery capacity of 2048Wh, which ensures a long-lasting power supply for various devices. The power output of up to 3400W in X-Boost mode means it can handle most household appliances, making it extremely handy during power outages or for camping trips.

One of its key strengths is the fast charging capability, achieving 80% charge in just 43 minutes when using both AC and solar inputs. This is complemented by the efficient solar panel that can capture up to 28% more energy, making it a great choice for eco-conscious users who want to leverage solar power. The generator's use of LiFePO4 battery technology is another plus, providing a long lifespan with over 3000 full charge cycles, which is notably higher than the industry average. Furthermore, with 15 outlets, it offers significant versatility for connecting multiple devices simultaneously.

Portability is fairly good, although the main unit is on the heavier side at 71 pounds, which could be cumbersome for some users. However, the solar panel is lightweight and foldable, adding to its convenience. On the downside, the separate delivery of the generator and solar panel might be an inconvenience, as it could lead to staggered receiving times. Additionally, while powerful, the charging speed may not always be as rapid in less optimal solar conditions.

In conclusion, despite some logistical considerations, the EcoFlow DELTA 2 Max is a robust and efficient solution for anyone needing a reliable source of power both at home and in the great outdoors. Its numerous charging options, high capacity, and eco-friendly features make it a strong contender in the solar generator market.