Our editorial team weighed EFECOFLOW's published specifications and how it stacks up against similar products in the generators category. What stands out: Lightning-Fast Charging, Exceptional Build for Marine/Off-Grid, and Quiet, No Emissions, Indoor-Safe. Where it falls short: Heavy at 50 lbs and Occasional App Connectivity Issues. That puts it at 8.5/10 on our WG Score – an excellent, well-rounded option.
Reviewed byTristanFor most homeowners, the EF ECOFLOW Delta 2 Solar Generator with 220W Panel – 1024Wh LiFePO4, 1800W Output for Camping, RV, Home Backup stands out as the best solar generators for power outages because it combines a robust 1800W AC output with a 1024Wh LFP battery that lasts over 3000 cycles, all packaged with a 220W bifacial solar panel for efficient charging. This 5-model lineup covers everything from compact portable units to expandable whole-home solutions, ensuring you find the right fit for your power needs. For more context on how we evaluate these units, see our solar generator for power outage guide.
Pros
- Long-lasting LiFePO4 battery with exceptional 3000+ cycle lifespan
- High 1800W output supports most appliances with 15 outlets
- Includes 220W bifacial solar panel for immediate off-grid use
- App integration and fast charging enhance user convenience
- Expandable capacity up to 3kWh for versatile applications
Cons
- At 58 lbs, it is somewhat heavy for solo handheld portability
- Power station and solar panel ship separately
- No specified peak wattage beyond 1800W running output
The EF ECOFLOW Delta 2 is a versatile portable power station paired with a 220W bifacial solar panel, delivering 1024Wh of LiFePO4 battery capacity and 1800W AC output. Designed for home backup, camping, and RV trips, it provides clean, fume-free power through 15 outlets, including USB-C up to 100W.
Ideal for outdoor enthusiasts and homeowners seeking reliable off-grid solutions, this solar generator stands out with its X-Stream fast charging, app control for real-time monitoring, and expandability to 3kWh. The weatherproof panel captures up to 25% more energy, ensuring quick recharges even in partial shade.
Build quality shines with a sophisticated BMS for safety, pure sine wave inverter for sensitive devices, and UPS functionality for seamless backup. At 15.7 x 8.3 x 11.1 inches and 58 lbs, it balances portability with robust performance, backed by a 5-year warranty.
Minor drawbacks include its weight for frequent transport and separate shipping of components. Overall, the Delta 2 excels as a durable, high-output solar generator for demanding users.
Power Output: 1800W running watts
Battery: 1024Wh LiFePO4, 3000+ cycles
Solar Input: 500W max
Weight & Size: 58 lbs, 15.7 x 8.3 x 11.1 inches
Outlets: 15 versatile outlets
Features: App Control, Fast Charging, Pure Sine Wave, UPS, Solar Compatible
Pros
- Lightning-fast 56-minute full charge with 1500W AC input
- Durable LiFePO4 battery with 4000 cycles and 10-year lifespan
- Powers 13 devices simultaneously via abundant outlets
- Expandable up to 5kWh with EcoFlow ecosystem
- IP65 weatherproofing for outdoor reliability
Cons
- Weighs 27.5 pounds, making it less portable for solo carrying
- Solar panel required separately for solar charging option
- New release with no customer reviews yet available
The EcoFlow DELTA 3 is a compact yet powerful 1024Wh portable power station designed for home backup, camping, and RV use. Featuring a robust LiFePO4 battery, it delivers 1800W AC output with X-Boost up to 2600W, allowing it to run multiple high-demand appliances simultaneously through 13 outlets, including 100W USB-C ports.
Standout performance includes a full charge in just 56 minutes using 1500W AC input, or rapid solar charging up to 500W. In real-world scenarios, it excels at powering essentials like refrigerators, CPAP machines, or tools during blackouts or off-grid trips, with expandable capacity up to 5kWh via EcoFlow extra batteries for extended runtime.
Build quality shines with an IP65-rated battery pack that resists splashes, dust, and oil, plus a lightweight extra battery option that's one-third smaller than predecessors. Operating quietly below 30dB at lower loads, it suits noise-sensitive environments, backed by a 5-year warranty.
Drawbacks include its 27.5-pound weight, which may challenge portability for some, and the need to purchase solar panels separately. Overall, the DELTA 3 offers exceptional value for reliable, fast-charging power in diverse settings.
Verdict: Highly recommended for anyone seeking a durable, high-performance solar generator that balances speed, capacity, and versatility without compromise.
Capacity: 1024Wh LiFePO4 Battery
AC Output: 1800W (2600W X-Boost)
Charging: 1500W AC Input (56 min full), 500W Solar Input
Dimensions: 15.7 x 8 x 11.2 inches
Weight: 27.5 pounds
Outlets: 13 Total (including 100W USB-C)
Expandability: Up to 5kWh with EcoFlow Batteries
Durability: 4000 Cycles to 80%, IP65 Rated
Pros
- Lightning-fast charging keeps you powered during critical times
- Exceptional build quality and durability praised in reviews for marine and off-grid use
- Quiet fans and no emissions allow safe indoor operation
- Powers high-demand devices like fridges for days on a single charge
- Intuitive app and display for easy monitoring and control
Cons
- Weighs 50 pounds, challenging to move solo for some users
- Occasional app connectivity issues require software updates
- Solar panels sold separately for full off-grid capability
The EF ECOFLOW DELTA 2 Max is a high-capacity portable power station designed for home backup, RV camping, outdoor adventures, and professional uses like filmmaking or boat maintenance. With 2048Wh LFP battery and 2400W output (expandable to 3400W via X-Boost), it powers nearly all household appliances, from fridges running for over 24 hours to power tools and heaters.
Standout performance includes world-leading charging: 80% in 43 minutes with AC and solar, or 1.1 hours on AC alone. Reviewers rave about its reliability, with one running a mini-fridge for 53 hours and a freezer for 26 hours. The quiet 30dB operation and app control make it ideal for overnight use without disturbance, while expandability to 6kWh prepares users for extended blackouts.
Build quality feels premium and rugged, with a 10-year battery lifespan from 3000 cycles. It's lighter than competitors at 50 pounds yet robust for harsh environments. The app provides real-time stats, though some note initial Bluetooth setup needs updates.
Drawbacks include its weight for frequent transport and lack of included solar panels. Still, for versatile, fume-free power without gas generator hassles, it excels.
Verdict: A top-tier solar generator for anyone needing fast, expandable, and quiet backup power. Highly recommended for preppers, campers, and homeowners facing outages.
Capacity: 2048Wh LFP Battery (3000 cycles to 80%)
Output: 2400W Continuous, 3400W X-Boost, 15 Outlets
Charging: 80% in 43 Min (AC+Solar), 1.1 Hr AC, 2.3 Hr Solar
Dimensions: 12.2 x 9.7 x 20 inches, 50 lbs
Special Features: Expandable to 6kWh, 30dB Quiet, App Control, Indoor Safe
Users praise its speed and power: 'Charged to 80% in under an hour, handles multiple appliances flawlessly' (5 stars). Sailboat owners love its portability and durability in marine settings. Off-grid fans note it outperforms competitors like Bluetti in runtime and recharge speed for fridges and freezers.
Common theme: Beastly performance for home backup and camping, with quiet operation and long battery life standing out.
Pros
- Lightweight and portable at 3.3lbs, easy to carry for camping or emergencies
- Includes 40W foldable solar panel and all cables for immediate use
- Multiple fast-charging USB ports and AC/DC outputs handle diverse devices
- Built-in flashlight with SOS adds emergency utility
- Positive feedback on quick customer service and real-world charging performance
Cons
- Solar panel may underperform in low-light conditions or with incompatible generators
- Limited to 100W continuous power, not for high-wattage appliances
- Occasional reports of unit charging issues after extended use
The Apowking R100 is a compact 146Wh portable solar generator designed for campers, RV enthusiasts, and anyone needing reliable backup power during outages or off-grid adventures. Paired with a 40W foldable solar panel, it offers versatile charging for essentials like phones, laptops, tablets, fans, and lights, making it ideal for short trips or emergency kits rather than whole-home backup.
Standout features include seven output ports: two 110V AC outlets (100W rated, 200W peak), multiple USB options with quick charge, and a DC port for car accessories. Users praise its real-world performance, like fast phone charging via solar on sunny days and full recharges in a few hours from AC or car. The built-in dual LED flashlight with SOS mode proves handy for nighttime emergencies, while the BMS ensures safe operation with temperature and voltage control.
Build quality impresses with a sturdy, lightweight 3.3lb body and cooling vents to prevent overheating. The digital display shows battery status clearly, and its backpack-friendly size enhances portability. Most reviews highlight excellent value, though some note slower solar input in shade and minor compatibility quirks with other panels.
Drawbacks include power limits that exclude heavy appliances and isolated complaints about solar efficiency or longevity. Overall, this generator earns its 4.2-star rating as a budget-friendly, feature-packed choice for portable power needs.
Verdict: Buy the Apowking R100 if you want an affordable, all-in-one solar solution for daily essentials during camping or blackouts. It's not for high-demand use but excels where convenience and solar readiness matter.
Capacity: 146Wh / 39600mAh Lithium Ion
Output: 100W Rated / 200W Peak; 2x AC 110V, USB-A/C ports, 1x DC 9-12.6V/10A
Input: Solar (40W panel included), AC adapter, Car charger
Weight: 3.3 pounds; Dimensions: 7.6 x 3.7 x 6.1 inches
Extras: Dual LED flashlight (3 modes), BMS safety, 1-year warranty
Apowking 146Wh solar generator, 40W solar panel, AC power adapter, car charging cable, carport output cable, user manuals (2).
Pros
- Includes efficient 40W solar panel for true portability
- Multiple output ports handle diverse devices effectively
- Lightweight and easy to carry for outdoor adventures
- Built-in flashlight adds emergency utility
- Quick customer support responsiveness in many cases
Cons
- Solar panel performance varies in cloudy or low-light conditions
- Limited to 100W continuous output for larger loads
- Occasional reports of charging compatibility issues
The Apowking R100 is a compact 146Wh portable solar generator bundled with a 40W foldable solar panel, designed for users needing reliable power during camping, travel, home outages, or outdoor activities. It outputs 200W peak and 100W rated power across seven ports, making it suitable for charging phones, tablets, laptops, fans, and small appliances without relying on grid electricity.
Standout features include the high-conversion-efficiency monocrystalline solar panel that recharges the unit even in suboptimal light, alongside AC, USB-C quick charge, and DC ports for broad compatibility. Real-world users praise its ability to fully charge devices like phones quickly via solar or car adapter, with the digital display showing battery status clearly. The dual LED flashlight with SOS functionality proves handy for emergencies, and cooling vents maintain safe temperatures during use.
Build quality features a durable aluminum and tempered glass construction in an orange-and-black design, weighing just 3.3lb for easy portability in backpacks. The BMS system ensures protection from common risks, enhancing longevity. While some note slower solar recharges in poor weather and minor compatibility quirks, its value shines for lightweight, everyday backup needs.
Overall, the Apowking R100 delivers solid performance for off-grid enthusiasts and preparedness-minded buyers, offering a balance of power, portability, and safety at an accessible level. Ideal if you want a no-fuss solar kit without bulk.
Capacity: 146Wh/39600mAh Lithium Ion
Output: 200W Peak/100W Rated (2x AC 110V, USB ports, 1x DC 9-12.6V/10A)
Input: Solar (40W panel included), AC adapter, Car charger
Dimensions: 7.5"L x 3.7"W x 6.1"H; Weight: 6.63lb total
Includes: Solar panel, AC adapter, car cable, cigarette lighter adapter, manuals
Choose this for short trips or basic backups powering small electronics; upgrade to larger capacities for heavy appliances. Test solar input in your typical conditions. Verify device wattage stays under 100W continuous. Great starter solar generator for beginners.
Quick Picks for 2026
Best Overall: EF ECOFLOW Delta 2 Solar Generator with 220W Panel – 1024Wh LiFePO4, 1800W Output for Camping, RV, Home Backup
This kit delivers an outstanding balance of power and portability. With 1800W AC output and a 1024Wh LiFePO4 battery rated for 3000+ cycles, it can run essential appliances like a refrigerator or sump pump for hours. The included 220W bifacial solar panel captures light from both sides, boosting charging efficiency in low-light conditions. Its expandable capacity from 1kWh to 3kWh makes it a future-proof choice for growing power needs.
Skip this if: you need a higher continuous output for heavy-duty tools or want a unit that charges in under an hour; the Delta 2 takes about 1.8 hours via AC and up to 4 hours with solar, depending on conditions.
View on Amazon.comBest Value: Apowking 146Wh Solar Generator 200W Peak/100W Rated Power Station with 40W Solar Panel – Portable for Camping, Home Backup
This compact unit offers a 146Wh capacity and 100W rated (200W peak) output, enough to charge phones, tablets, a laptop, or run small LED lights for several hours. The included 40W solar panel provides a practical entry point into solar backup without a large investment. Its seven output ports include two 110V AC outlets and dual USB-C, making it versatile for short outages or outdoor use.
Skip this if: you need to power larger appliances like a refrigerator or sump pump; its 100W continuous output limits it to small electronics and low-wattage devices.
View on Amazon.comBest for Whole-Home Backup: EF ECOFLOW DELTA 2 Max: 2400W 2048Wh LFP Portable Solar Generator, 80% Charge in 43 Min, Home Backup & RV Power
With 2400W continuous output and a 2048Wh LiFePO4 battery that can be expanded up to 6kWh, this generator can power 99% of household devices including refrigerators, well pumps, and HVAC systems during an outage. Its 15 outlets and X-Boost mode handle high-wattage appliances up to 3400W. The unit recharges to 80% in just 43 minutes when using AC plus solar input simultaneously, minimizing downtime.
Skip this if: you need a truly silent solution for overnight use; while it operates at a quiet 30 dB, the fan can be audible in a bedroom. Also, it requires a separate solar panel purchase if you want off-grid charging.
View on Amazon.comBuying Guide for 2026
Battery Capacity and Chemistry
Battery capacity, measured in watt-hours (Wh), determines how long your generator can run your devices. For example, the EF ECOFLOW Delta 2 has a 1024Wh battery. If you run a 100W light bulb continuously, it would last roughly 10 hours (1024Wh / 100W = 10.24 hours). For a typical refrigerator drawing 150W, you would get about 6.8 hours. Lithium iron phosphate (LiFePO4) batteries, used in all EcoFlow models here, offer 3000 to 4000 cycles to 80% capacity, meaning they last 6 to 10 years with daily use. The Apowking units use a different lithium chemistry with a shorter lifespan, but they are still suitable for occasional backup.
Output Power and Inverter Type
The inverter’s continuous wattage rating tells you what appliances you can run simultaneously. A 1800W unit like the Delta 2 or DELTA 3 can power a refrigerator (150-800W), a few lights (100W total), and a laptop (50W) at the same time. The DELTA 2 Max’s 2400W output can handle a well pump (1000W) plus a refrigerator. Pure sine wave inverters, used in all these models, provide clean power safe for sensitive electronics. The Apowking’s 100W rated output limits it to small electronics like phones, tablets, and a fan.
Solar Charging Input and Panel Compatibility
Solar input wattage determines how fast the generator recharges from panels. The Delta 2 accepts up to 500W solar input, allowing a full charge in about 2 hours with adequate sunlight. The DELTA 3 can accept 500W solar plus 1500W AC simultaneously for a 56-minute full charge. The DELTA 2 Max supports up to 1000W solar input. The Apowking units include a 40W panel and can accept up to 60W input, taking roughly 4-6 hours to fully charge from solar. When comparing, consider the solar panel wattage included or required; some kits come with panels, others are sold separately.
Portability and Expandability
Weight and size matter if you plan to move the generator between locations. The Apowking units weigh under 3 pounds, making them truly portable for camping or car trips. The Delta 2 and DELTA 3 weigh around 27-30 pounds, manageable for rolling on included wheels. The DELTA 2 Max is heavier at about 50 pounds, best for stationary home backup. Expandability is a key differentiator: the Delta 2 can be expanded from 1kWh to 3kWh with extra batteries, while the DELTA 2 Max can go up to 6kWh. The DELTA 3 supports expansion up to 5kWh. The Apowking units are not expandable.
Number and Type of Outlets
Check the number of AC outlets, USB ports, and DC outputs. The Delta 2 and DELTA 3 each have 15 outlets, including 6 AC outlets, multiple USB-A and USB-C ports, and a car outlet. The DELTA 2 Max also has 15 outlets. The Apowking units have 7 outlets: 2 AC, 2 USB-A, 1 USB-C, 1 DC, and a car port. More outlets allow you to power multiple devices without needing a power strip. For home backup, having at least 4 AC outlets is recommended to run a refrigerator, lights, a router, and a CPAP machine simultaneously.
Why Trust Our Reviews
Our recommendations are based on thorough analysis of manufacturer specifications, user feedback across multiple platforms, and comparison of key performance metrics like battery capacity, output wattage, charging speed, and portability. We do not perform hands-on testing; instead, we aggregate data from verified buyers and expert sources to identify the best options for each use case. Our goal is to provide objective, data-driven guidance so you can make an informed purchase decision. We also monitor product updates and market changes to keep our recommendations current.
Frequently Asked Questions
How long does a solar generator take to charge from solar panels?
Charging time depends on the generator’s battery capacity and the solar panel wattage. For example, the EF ECOFLOW Delta 2 with its 1024Wh battery and 220W included panel takes about 4-5 hours in full sun. The Apowking 146Wh unit with its 40W panel takes roughly 3-4 hours. Higher-wattage panels or multiple panels can reduce charging time significantly.
Can I run a refrigerator on a solar generator?
Yes, if the generator’s continuous output is sufficient. A typical refrigerator draws 150-800W. The EF ECOFLOW Delta 2 (1800W) and DELTA 2 Max (2400W) can easily handle a refrigerator. The Apowking 146Wh unit (100W rated) cannot. Always check the refrigerator’s starting surge wattage, which can be 2-3 times its running wattage; generators with X-Boost or similar surge capability handle this better.
What is the lifespan of a LiFePO4 battery in a solar generator?
LiFePO4 batteries typically last 3000 to 4000 charge cycles to 80% capacity. With daily use, that translates to about 8-10 years. For occasional use during power outages, the battery can last much longer. The EcoFlow models use LFP chemistry, while the Apowking units use a different lithium chemistry with a shorter cycle life (around 500 cycles).
Do I need a solar panel included with the generator?
It depends on your intended use. If you plan to recharge solely from the grid, a panel is optional. For off-grid camping or backup during extended outages, a panel is essential. The EF ECOFLOW Delta 2 kit includes a 220W panel; the Apowking units include a 40W panel. The DELTA 3 and DELTA 2 Max are sold without panels, so you would need to purchase compatible panels separately. For more on panel compatibility, see our portable power stations with solar panel guide.
Quick Comparison: Side by Side
- – 3,000+ Cycle LiFePO4 Battery.
- – 1800W Output, 15 Outlets.
- – Includes 220W Bifacial Panel.
- – 56-Minute Full Charge.
- – 4,000-Cycle, 10-Year Battery.
- – Powers 13 Devices at Once.
- – Lightning-Fast Charging.
- – Exceptional Build for Marine/Off-Grid.
- – Quiet, No Emissions, Indoor-Safe.
- – Lightweight at 3.3 lbs.
- – Includes 40W Solar Panel & Cables.
- – Multiple Fast-Charging Ports.
- – Includes 40W Solar Panel.
- – Versatile Output Ports.
- – Lightweight & Easy to Carry.
- – Heavy at 58 lbs.
- – Ships Separately From Panel.
- – No Peak Wattage Specified.
- – Heavy at 27.5 lbs.
- – Solar Panel Sold Separately.
- – No Reviews Yet.
- – Heavy at 50 lbs.
- – Occasional App Connectivity Issues.
- – Solar Panels Sold Separately.
- – May Underperform in Low Light.
- – 100W Continuous Limit.
- – Occasional Charging Issues Over Time.
- – Varies in Cloudy/Low-Light Conditions.
- – 100W Continuous Limit.
- – Occasional Charging Compatibility Issues.
