10 Best Solar Generators 2026 in the United States

The EF ECOFLOW Solar Generator DELTA Pro 3 is a robust and versatile solar generator designed for home use, camping, emergencies, power outages, and RVs. One of its primary strengths is its substantial 4096Wh battery capacity, which can be expanded up to 48kWh, making it capable of providing 2-4 days of backup power for an entire home. The 4000W AC output (scalable up to 12000W) ensures it can power nearly all essential appliances, including heavy-duty ones like a 3-ton central AC or a water pump. This makes it a suitable option for those needing a dependable, high-power solution during outages or off-grid scenarios.

The unit is highly flexible with multiple charging options, including solar panels, AC wall outlets, and even EV charging piles, which means users can recharge it in various situations without relying on fuel. Its portability is enhanced by a handle design, but at 115 pounds, it may not be easy to move around frequently. The generator operates quietly at 30 dB, ensuring minimal disturbance whether used indoors or outdoors. Another major advantage is its quick 10 ms switch-over capability, which ensures uninterrupted power supply to sensitive devices.

The build quality is reliable, featuring automotive-grade LFP cells and IP65-rated battery technology for an extended lifespan and durability. It also comes with a 5-year warranty, which adds peace of mind. However, potential buyers should be prepared for the bulkiness and weight, and note that the generator and solar panels are shipped separately, which may require some patience. This solar generator is ideal for someone looking for a powerful and reliable backup solution for home use or outdoor activities.

The MARBERO 237Wh Solar Generator offers a compact and portable power solution, especially suited for camping, hiking, and emergency use. Its 237Wh lithium-ion battery can comfortably charge smaller devices such as phones, tablets, and laptops. With a 300W pure sine wave output, it supports sensitive electronics well, but it’s important to avoid high-power appliances like heaters, as exceeding 300W may cause damage. The included 60W foldable solar panel is efficient, with a conversion rate above 21%, allowing for decent solar recharging when placed in direct sunlight.

Multiple output ports—two AC outlets, several USB-A and USB-C ports, plus a DC output—make it versatile for charging different devices simultaneously. Weighing around 9 pounds and measuring roughly 12 by 10 by 16 inches, it strikes a good balance between portability and capacity, though it may be a bit bulky for long backpacking trips. The built-in LED flashlight with multiple modes adds practical value for emergencies.

A downside is the relatively limited runtime of about an hour at full 300W load, which means it’s best for light to moderate power needs rather than long-term off-grid use. Safety features like smart charging and protection against overloading enhance reliability. This solar generator is a solid pick for outdoor enthusiasts and emergency preparedness if you need reliable power for smaller devices and appreciate the convenience of included solar charging.

The Anker SOLIX C300 is a compact and portable solar generator with a 288Wh LiFePO4 battery, providing 300W of continuous power and a 600W surge for short bursts. This capacity is suitable for charging multiple small devices and running modest electronics during camping or emergencies. It offers eight charging ports, including three AC outlets and fast two-way USB-C ports with up to 140W, which is versatile for powering a range of devices at once. Portability is a strong point here—its size is smaller than many competitors and it weighs about 9 pounds, making it easy to carry for outdoor adventures.

Recharge speed is impressive, with the ability to reach 80% in about 50 minutes from a wall outlet, and it supports solar recharging with recommended 60W or 100W Anker solar panels (note some panels are not compatible). This flexibility means you can keep it charged even off-grid. The LiFePO4 battery is built for longevity with up to 3,000 cycles and a 10-year lifespan, plus it includes safety features like smart temperature control and impact resistance. It operates quietly at 25dB, so it won’t disturb your outdoor relaxation.

On the downside, the 288Wh capacity might be limiting if you need to power larger devices or longer usage times without recharging. Also, solar panel compatibility is limited to specific Anker models, which could restrict your options if you want to mix and match panels. The weight, while manageable, is heavier than some ultra-light models, so it’s not the best fit if you’re backpacking. This generator suits campers, travelers, and emergency users who want reliable, fast charging in a durable, quiet package without needing very high power output or full solar panel flexibility.