EF ECOFLOW Delta 3 Ultra 3072Wh Solar Generator with 400W Solar Panel

Reviews updated 20 hours ago

The summaries below are AI-rewritten and translated from public Amazon reviews. We do not publish original review text — each summary links to its source.

Customer review summaries

✓ Verified
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Great performance, but 400W panel is unwieldy

The power station performs well, but the 400W solar panel is too floppy and heavy. It comes with a carrying case that doubles as a stand, though it only supports the middle section, so handling it risks damage. A smaller panel option is recommended. The unit powered a 24 cu. ft. side-by-side fridge for 34 hours, charged from a wall outlet in about an hour, and the solar panel charged at roughly 6.5% per hour on a partly cloudy day, with input ranging from 120W to 394W.

Pros
  • + powers a 24 cu. ft. side-by-side fridge for 34 hours
  • + wall charging in about an hour
  • + solar charging at about 6.5% per hour on a partly cloudy day
  • + input power ranging from 120W to 394W
Cons
  • − 400W solar panel is too floppy and heavy
  • − carrying case stand only supports the middle section
  • − risk of damaging the panel during handling
AI-assisted summary of a verified Amazon customer review. · May 17, 2026 · United States Read original on Amazon ↗
✓ Verified
AI-assisted

Heavy but capable power station with strong output

This unit is well made and simple to set up, though it is heavy and the 400W solar panel is large and difficult to move. A ground-floor central location is recommended, as stairs would be hard. Charging from the grid at 1800W draws significant power, so older or lighter-gauge wiring may warm up and should be checked before use. It operates reliably and can run a camper, a fridge, or a computer during a power outage.

Pros
  • + well-made unit
  • + simple setup
  • + reliable operation
  • + runs camper, fridge, and computer
Cons
  • − generator is heavy
  • − 400W solar panel is large and hard to move
  • − high grid draw may stress older or lighter wiring
AI-assisted summary of a verified Amazon customer review. · May 16, 2026 · United States Read original on Amazon ↗
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AI-assisted

Worth the Purchase

This product is described as worth buying. The recommendation is to purchase it, with the overall assessment being that it justifies the cost. No specific features, drawbacks, or use cases are mentioned.

Pros
  • + worth the purchase
AI-assisted summary of a verified Amazon customer review. · September 4, 2026 · United States Read original on Amazon ↗
✓ Verified
AI-assisted

Powerful, Quiet Solar Generator Combo for Home and Travel

The DELTA 3 Ultra with 400W solar panel keeps essentials like a fridge, lights, laptop, and tools running, and recharges quickly via solar, even on cloudy days. It supports off-grid use, outages, and camping. Setup is simple, the display is clear, and the app tracks everything in real time. It runs quietly and without fumes. The unit delivers 3,600 W continuous and up to 7,200 W surge with X-Boost up to about 4,600 W, and at 74.3 lb it can be moved around the house.

Pros
  • + fast solar recharging
  • + works on cloudy days
  • + quiet and fume-free
  • + clear display
  • + simple setup
  • + real-time app tracking
  • + portable for its weight
AI-assisted summary of a verified Amazon customer review. · October 20, 2025 · United States Read original on Amazon ↗
✓ Verified
AI-assisted

Powerful and Fast-Charging, but Heavy

A highly recommended, very powerful unit that charges extremely fast. It weighs 79 lbs including the box. It can connect to whatever you want to plug into it.

Pros
  • + Very powerful
  • + Charges extremely fast
  • + Can connect whatever you want
Cons
  • − Weighs 79 lbs including the box
AI-assisted summary of a verified Amazon customer review. · July 13, 2026 · United States Read original on Amazon ↗

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