Is the EcoFlow DELTA 2 Max Your Answer to Slow Solar Charging?
You've invested in portable power, but your current solar setup takes forever to recharge. Watching your power station drain faster than weak panels can replenish it during critical moments.
Without proper solar charging capability, you're stuck rationing power or running back to wall outlets, defeating the whole purpose of portable independence. Your expensive power station becomes just another device tethered to the grid.
The EcoFlow DELTA 2 Max with 400W portable solar panel eliminates charging anxiety with a perfectly matched system designed for maximum efficiency. This isn't just any power station and panel combo - it's an engineered solution that delivers reliable off-grid power when you need it most.
- 2048Wh LiFePO4 capacity - Powers essential devices for days, not hours, with 3000+ cycle lifespan
- 400W high-efficiency solar input - Recharges from 0-80% in under 3 hours of good sunlight
- Perfect compatibility guarantee - No guesswork with voltage matching or connector compatibility
- Portable yet powerful design - Foldable 400W panel weighs just 35lbs, sets up in minutes
- Multiple charging options - Combine solar with AC/car charging for fastest possible recharge times
- 2400W AC output - Run power tools, appliances, and sensitive electronics simultaneously

DELTA 2 Max Features & Performance
Advanced LiFePO4 Battery Technology
The 2048Wh LiFePO4 battery delivers consistent power output through 3000+ cycles while maintaining 80% capacity. Unlike cheaper lithium-ion alternatives, LiFePO4 handles temperature extremes and provides stable voltage under load.
Rapid Solar Charging Capability
The included 400W portable solar panel features high-efficiency monocrystalline cells optimized for the DELTA 2 Max's charging profile. Built-in MPPT controller maximizes power harvest even in partial shade conditions.
Expandable Power System
Connect up to 800W of solar panels total, or add DELTA 2 Max expansion batteries to reach 6144Wh capacity. The modular design grows with your power needs without starting over.
See full specifications below for complete technical details.

Ideal Use Cases for the DELTA 2 Max Solar Bundle
- Extended RV and camping trips - Keep refrigerators, lights, and devices running for weeks without hookups or generator noise
- Home backup power - Maintain essential circuits during outages with silent, emission-free operation
- Remote work locations - Power laptops, monitors, and communication equipment at job sites without grid access
- Outdoor events and tailgating - Run sound systems, lighting, and food service equipment with professional reliability
- Emergency preparedness - Store charged and ready for natural disasters with solar recharging capability
Not sure if this is the right fit for your specific power needs? Check our FAQs below or contact our power specialists for personalized recommendations.

Why Choose the DELTA 2 Max over Smaller Portable Power Stations
While 500-1000Wh units work for basic device charging, the DELTA 2 Max handles real appliances and tools that smaller stations can't touch. The 2400W AC output runs refrigerators, power tools, and multiple devices simultaneously without voltage sag or shutdown.
EcoFlow has sold over 3 million portable power stations worldwide, with the DELTA series earning recognition for reliability and innovation. The LiFePO4 battery chemistry provides 6x longer lifespan than standard lithium-ion, making this bundle a long-term investment rather than a disposable gadget.
Traditional gas generators require fuel, maintenance, and produce noise and emissions. This solar bundle operates silently with zero ongoing costs after purchase.
DELTA 2 Max Specifications
| Battery Capacity | 2048Wh (51.2V, 40Ah) |
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Cycle Life | 3000+ cycles to 80% capacity |
| AC Output | 2400W continuous, 4800W surge |
| AC Outlets | 6 x 120V outlets |
| USB Ports | 4 x USB-A, 2 x USB-C (100W max) |
| DC Output | 2 x 12V/10A car outlets |
| Solar Input | 11-60V, 15A max, 500W max |
| AC Charging | 1800W max (0-80% in 50 minutes) |
| Car Charging | 12V/24V, 8A/4A |
| Weight | 23kg (50.7 lbs) |
| Dimensions | 49.7 x 24.2 x 30.5 cm |
| Solar Panel Power | 400W monocrystalline |
| Panel Efficiency | 22.4% |
| Panel Weight | 16kg (35.3 lbs) |
| Panel Folded Size | 54 x 61 x 2.5 cm |
| Operating Temperature | -10°C to 45°C (14°F to 113°F) |
| Warranty | 5 years |
What's in the Box
- EcoFlow DELTA 2 Max portable power station
- 400W portable solar panel
- MC4 to XT60 solar charging cable
- AC charging cable
- Car charging cable
- User manual and warranty card

Frequently Asked Questions
How long will the DELTA 2 Max run my refrigerator?
A typical 150W refrigerator will run approximately 12-14 hours on a full charge, accounting for compressor cycling. With the 400W solar panel providing daytime charging, you can run refrigeration indefinitely in good weather conditions.
Can I use other solar panels with the DELTA 2 Max?
Yes, the DELTA 2 Max accepts 11-60V solar input up to 500W total. However, the included 400W panel is specifically matched for optimal charging performance and includes the correct connectors for plug-and-play setup.
Is the price worth it compared to separate purchases?
Buying the power station and solar panel separately would cost significantly more. This bundle provides guaranteed compatibility, matched performance, and substantial savings over individual component purchases.
How does solar charging work in cloudy conditions?
The 400W panel will still generate power in overcast conditions, typically 10-25% of rated output depending on cloud density. The built-in MPPT controller maximizes power harvest even in suboptimal conditions.
Warranty & Authorized Dealer
EcoFlow provides a comprehensive 5-year warranty covering both the power station and solar panel. This industry-leading coverage demonstrates confidence in long-term reliability and performance.
Order your DELTA 2 Max solar bundle from Mighty Generators, an authorized EcoFlow dealer, for full warranty coverage, expert technical support, and fast shipping. Don't risk warranty issues with unauthorized sellers.
Questions about power requirements or system compatibility? Our power specialists are here to help before and after your purchase. Contact us for personalized recommendations based on your specific needs.