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10 Best Small Solar Generators 2025 in the United States

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Our Top Picks

#1

Winner

EF ECOFLOW Solar Generator DELTA2 with 220W Solar Panel, LFP(LiFePO4) Battery, Fast Charging, Portable Power Station for Home Backup Power, Camping & RVs

Rating
9.9
Chosen by1,286
Battery Capacity
Power Output
Charging Options

Most important from
4137 reviews

Battery Capacity
The Delta 2's battery technology, using LiFePO4, offers significant advantages like safety, longevity, and better performance in extreme temperatures compared to NMC batteries.
Power Output
The Delta 2 Solar Generator is a reliable backup for power outages, capable of running small devices and appliances effectively.
Charging Options
The rapid charging capability from 0 to 80% in just 50 minutes is impressive, though the fan can be quite loud during this time.
Durability and Build Quality
The build quality is solid with no rattles or creaks, and the fan noise during operation is minimal for most users.

The EF ECOFLOW Solar Generator DELTA2 is a solid choice for those seeking a portable power solution for camping, RVs, or home backup. It features an impressive battery capacity of 1kWh, which can be expanded up to 3kWh, making it versatile for various needs. The generator offers a powerful output of 1800W, allowing users to run a wide range of appliances, which is particularly beneficial for outdoor activities or emergency situations.

One of the standout features is its 220W bifacial solar panel, which is designed to capture more energy, enhancing charging efficiency during sunny days. This solar generator is built with LFP battery technology, promising a longevity of over 3000 cycles, and its robust battery management system ensures safety during use.

The design prioritizes portability, weighing 58 pounds, which makes it manageable for transport. With 15 outlets available, it accommodates multiple device connections simultaneously, which is a major plus for group outings or extensive power needs. The DELTA2 is a robust and durable option for those who need reliable power in outdoor situations or as a backup at home, with its high output and expandable capacity being key strengths. Potential buyers should weigh the portability aspect and cost against their specific needs.

Rating
9.9
Chosen by1,286
Battery Capacity
Power Output
Charging Options

Most important from
4137 reviews

Battery Capacity
The Delta 2's battery technology, using LiFePO4, offers significant advantages like safety, longevity, and better performance in extreme temperatures compared to NMC batteries.
Power Output
The Delta 2 Solar Generator is a reliable backup for power outages, capable of running small devices and appliances effectively.
Charging Options
The rapid charging capability from 0 to 80% in just 50 minutes is impressive, though the fan can be quite loud during this time.
Durability and Build Quality
The build quality is solid with no rattles or creaks, and the fan noise during operation is minimal for most users.
#2

EF ECOFLOW Solar Generator 120V/3.6KWh DELTA Pro with 400W Portable Solar Panel, 23% High Efficiency, 5 AC Outlets, 3600W Portable Power Station for Home Backup Outdoors Camping RV Emergency

Rating
9.8
Battery Capacity
Power Output
Portability

Most important from
803 reviews

Battery Capacity
Users appreciate the expandable nature of the Delta Pro, which offers the flexibility to add more units for increased power.
Power Output
With its 3600W output, the EcoFlow Delta Pro can handle almost anything thrown at it, making it a versatile power solution for both home and RV use.
Portability
Despite its hefty 100 lbs, the Delta Pro is easily maneuverable thanks to its wheels and handle, making portability less of a hassle.
Charging Options
The fast charging capability from a wall outlet, taking about two hours, adds significant convenience.

The EF ECOFLOW Solar Generator DELTA Pro is a robust option for those seeking a reliable power source for home backup or outdoor activities. Its standout feature is the impressive 3600Wh battery capacity, which, when paired with a 3600W AC output, makes it capable of handling most household appliances. The addition of x-boost technology further enhances its utility by allowing it to power devices up to 4500W.

One of its strengths is the high-efficiency solar panel with a 22.4% conversion rate, ensuring good energy capture even in less-than-ideal weather conditions. The option to fully recharge the generator in about 3.5 hours with three 400W panels is convenient for those on the go. Portability is another highlight, with the solar panel weighing only 16kg and designed to be easily carried.

The DELTA Pro also offers versatility with 15 different outlets, including AC, USB, and DC ports, accommodating a wide range of devices. The inclusion of a smart app allows users to monitor and control the generator remotely, adding an extra layer of convenience.

However, the generator is relatively heavy at 99 pounds, which might pose challenges for portability despite the foldable solar panel design. Additionally, while it has strong solar capacity, the initial setup might require patience, especially since the generator and solar panel are shipped separately.

This solar generator is best suited for those who need a substantial power supply, such as homeowners seeking backup solutions or campers who use multiple power-hungry devices. Its durable build and ease of control through a smart app make it a reliable and user-friendly choice, albeit with some portability trade-offs due to its weight.

Rating
9.8
Battery Capacity
Power Output
Portability

Most important from
803 reviews

Battery Capacity
Users appreciate the expandable nature of the Delta Pro, which offers the flexibility to add more units for increased power.
Power Output
With its 3600W output, the EcoFlow Delta Pro can handle almost anything thrown at it, making it a versatile power solution for both home and RV use.
Portability
Despite its hefty 100 lbs, the Delta Pro is easily maneuverable thanks to its wheels and handle, making portability less of a hassle.
Charging Options
The fast charging capability from a wall outlet, taking about two hours, adds significant convenience.
#3

EF ECOFLOW Solar Generator DELTA 2 Max 2048Wh with 2x220W Solar Panel, LFP Battery Portable Power Station, Up to 3400W AC Output, AC + Solar Fast Dual Charging Full Charge in 1 Hr For Camping RV

Rating
9.6
Power Output
Solar Panel Compatibility
Portability

Most important from
1506 reviews

Power Output
The generator's 2400W output can power a wide range of appliances, from refrigerators to smaller electronics, making it versatile for various needs.
Solar Panel Compatibility
Charging the unit with solar panels is less efficient than using a household outlet, but the option is valuable for extended outages.
Portability
The panels are easy to set up and the generator, despite being a bit heavy, is solid and manageable even for someone with physical limitations.
Charging Options
The generator offers multiple ways to charge and has ports to keep essential devices like cell phones powered during outages.
Durability and Build Quality
The design is clean and practical, with well-placed outlets and durable build quality.

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.

Rating
9.6
Power Output
Solar Panel Compatibility
Portability

Most important from
1506 reviews

Power Output
The generator's 2400W output can power a wide range of appliances, from refrigerators to smaller electronics, making it versatile for various needs.
Solar Panel Compatibility
Charging the unit with solar panels is less efficient than using a household outlet, but the option is valuable for extended outages.
Portability
The panels are easy to set up and the generator, despite being a bit heavy, is solid and manageable even for someone with physical limitations.
Charging Options
The generator offers multiple ways to charge and has ports to keep essential devices like cell phones powered during outages.
Durability and Build Quality
The design is clean and practical, with well-placed outlets and durable build quality.

Buying Guide for the Best Small Solar Generators

Choosing the right small solar generator can be a game-changer for your energy needs, whether you're camping, dealing with a power outage, or just looking for a sustainable energy solution. The key is to understand your specific needs and how different features of solar generators can meet those needs. Here are some important specifications to consider when selecting a small solar generator.
Battery CapacityBattery capacity, measured in watt-hours (Wh), indicates how much energy the generator can store. This is crucial because it determines how long the generator can power your devices. If you need to run small devices like phones and lights, a lower capacity (100-300Wh) might suffice. For larger devices or longer usage, look for higher capacities (500Wh and above). Assess your energy consumption needs to choose the right capacity.
Power OutputPower output, measured in watts (W), tells you how much power the generator can provide at any given moment. This is important for understanding what devices you can run simultaneously. Small solar generators typically range from 100W to 1000W. For basic needs like charging phones and laptops, lower outputs (100-300W) are adequate. For running appliances like mini-fridges or power tools, you'll need higher outputs (500W and above). Match the power output to the devices you plan to use.
Solar Panel CompatibilitySolar panel compatibility refers to the types and sizes of solar panels that can be used with the generator. This is important because it affects how quickly you can recharge the generator using solar energy. Some generators come with built-in panels, while others require separate panels. Look for generators that support a range of panel sizes (measured in watts) and types (monocrystalline, polycrystalline). Ensure the solar panel setup matches your recharging needs and available sunlight.
PortabilityPortability is about the size, weight, and design of the generator, which affects how easy it is to transport. This is crucial if you plan to use the generator for outdoor activities or need to move it frequently. Small solar generators can weigh anywhere from a few pounds to over 20 pounds. For camping or travel, lighter and more compact models are ideal. For home use, portability might be less of a concern, so you can opt for larger models with more features.
Charging OptionsCharging options refer to the different ways you can recharge the generator, such as solar panels, wall outlets, or car chargers. This is important for ensuring you can keep the generator powered in various situations. Some generators offer multiple charging methods, providing flexibility. If you need a reliable backup during power outages, ensure the generator can be charged via wall outlets. For off-grid use, prioritize solar and car charging capabilities.
Inverter TypeThe inverter type determines the quality of the power output, with pure sine wave inverters providing cleaner and more stable power compared to modified sine wave inverters. This is important for sensitive electronics like laptops and medical devices. Pure sine wave inverters are generally better but can be more expensive. If you plan to power sensitive equipment, opt for a pure sine wave inverter. For basic devices, a modified sine wave inverter might be sufficient.
Durability and Build QualityDurability and build quality refer to how well the generator is constructed and its ability to withstand various conditions. This is important for ensuring the generator lasts and performs well over time. Look for generators with robust materials, weather-resistant features, and solid warranties. If you plan to use the generator outdoors or in harsh conditions, prioritize models with higher durability. For indoor or occasional use, standard build quality may be adequate.

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