10 Best Small Solar Generators 2026 in the United States

The EF ECOFLOW Solar Generator DELTA 2 Max 2048Wh is a solid choice for those needing a reliable portable power source, especially for camping or RV use. With a 2048Wh battery capacity, it offers ample power storage. The power station can handle up to 2400W output, with a peak of 3400W in X-Boost mode, making it capable of running many household appliances and high-wattage devices. This versatility is supported by 15 outlets, accommodating a wide range of devices.

The included 2x220W solar panels are efficient, capturing up to 28% more solar energy with dual-sided panels, and can fully charge the unit in about 5.8 hours using both panels. This fast charging option is enhanced by the ability to combine solar and AC charging, reaching 80% capacity in just 43 minutes. The generator features a long-lasting LFP battery with up to 3000 cycles, ensuring more than 10 years of use. Portability is a highlight, as the solar panels are lightweight and foldable, and the overall build is durable with an IP68 rating for water and dust resistance.

However, the unit is somewhat heavy at 92 pounds, which may make transport challenging without assistance. Additionally, it ships in separate packages, which could cause delays in setup. This generator is best for those who need a high-capacity, efficient, and versatile portable power solution for outdoor activities or backup power at home.

The EF ECOFLOW DELTA 2 solar generator is a solid pick if you need reliable, portable power for camping, RV trips, or home backup. It comes with a 1024Wh lithium iron phosphate (LFP) battery, which is known for lasting much longer than typical batteries—about 3000+ charge cycles—so you won’t need to replace it anytime soon. The power output is strong at 1800W continuous and 2700W surge, capable of running most household appliances without the noise or fumes of gas generators. With 15 outlets, it can charge many devices simultaneously.

It pairs well with the included two 100W solar panels that have a good 23% efficiency rate, allowing you to recharge the generator in about 5 hours using solar power, which is pretty fast for this type of device. You can also expand the battery capacity up to 3kWh if you need more energy for longer trips or power outages. While it weighs 27 pounds, it remains portable enough for most outdoor uses and features a smart battery management system for safety.

The solar panels and generator arrive separately, so you’ll need to set both up yourself. This generator combines durability, fast charging, and flexible solar compatibility, making it a versatile and eco-friendly power solution for users wanting clean, quiet energy on the go.

The EF ECOFLOW DELTA 3 is a solid choice for anyone needing a portable solar generator for camping, RV trips, or home backup. It packs a 1024Wh LiFePO4 battery, which offers good energy storage and long-lasting durability with up to 4000 charge cycles—meaning it’s designed to last about 10 years of regular use. The 1800W AC power output (2200W surge with X-Boost) is powerful enough to run multiple household appliances simultaneously—up to 13 devices at once—making it versatile for emergencies or outdoor activities.

Charging is a strong point here: the DELTA 3 can fully recharge in just 56 minutes using AC power and accepts up to 500W input from solar panels (sold separately), so it pairs well with solar setups. It also supports multiple fast charging methods, giving you flexibility. The built-in inverter ensures clean and stable power for sensitive electronics.

On portability, it weighs about 27.5 pounds and measures roughly 16 x 8 x 11 inches. While not the lightest in its class, it remains manageable for transport during camping or RV use. The unit’s build quality is robust, with IP65-rated protection against dust, splashes, and oil, which is great for outdoor environments. The DELTA 3 offers strong power output, fast and versatile charging, durable construction, and good expandability—making it a reliable, though somewhat heavier, portable solar generator ideal for serious campers, RV owners, or those wanting a dependable home backup power source.