EcoFlow Review 2026
EcoFlow manufactures 4 models across batteries.
Headquartered in International · Manufacturing in Various
Founded 2017 by Eli Harris, Bruce Wang · Headquartered in Shenzhen, Guangdong, China
Parent company: EcoFlow Inc. (private)
EcoFlow at a glance
Certifications: UL 9540 (whole-home model) · UL 1973 · FCC
Warranty: 5-yr product · 5-yr performance
Key milestones
- 2017 Founded in Shenzhen, China
- 2023 Launched DELTA Pro Ultra modular whole-home backup
Source: www.ecoflow.com/us/about-us · Last updated 2026-05-27
EcoFlow Pros & Cons (data-driven)
+ Pros
- ✓ 100% of SKUs triple-verified against manufacturer datasheets
− Cons
- ✗ Distributor and installer pricing varies — direct retail rarely available
- ✗ Some 2026 models depend on regional distributor availability
Pros and cons calculated against industry baselines: 21% panel efficiency, 12yr panel warranty, -0.32%/°C temp coeff, 90% battery RTE.
Current EcoFlow Product List (4)
Batteries (4)
| Model | Capacity | Power | Chemistry | Warranty | Verified | Details |
|---|---|---|---|---|---|---|
| DELTA Pro | 2.88 kWh | 3.6 kW | LFP | 5 yr | ✓ | View → |
| DELTA 2 Max | 1.638 kWh | 2.4 kW | LFP | 5 yr | ✓ | View → |
| DELTA 2 | 0.819 kWh | 1.8 kW | LFP | 5 yr | ✓ | View → |
| RIVER 2 Pro | 0.614 kWh | 0.8 kW | LFP | 5 yr | ✓ | View → |
Spec Sheet Downloads
4 manufacturer-published datasheets available for EcoFlow products. All links go to the official PDF on the manufacturer's website.
- PDF EcoFlow RIVER 2 Pro Portable Power Station datasheet →https://us.ecoflow.com/products/river-2-pro-portable-power-station
- PDF EcoFlow DELTA 2 Portable Power Station datasheet →https://us.ecoflow.com/products/delta-2-portable-power-station
- PDF EcoFlow DELTA 2 Max Portable Power Station datasheet →https://us.ecoflow.com/products/delta-2-max-portable-power-station
- PDF EcoFlow DELTA Pro Portable Power Station datasheet →https://us.ecoflow.com/products/delta-pro-portable-power-station
Recent EcoFlow News
SolarSpec does not republish third-party news. For the latest EcoFlow news — product launches, financial filings, recalls, supply-chain updates — search Google News directly.
Search EcoFlow news on Google News →Related Brands
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Frequently Asked Questions
What is the SolarSpec Score for EcoFlow?
EcoFlow earns a SolarSpec Score of 58/100 (Grade C) based on the weighted average of all 4 models in their 2026 lineup. The score combines efficiency, warranty, temperature coefficient, and verification status. See our /methodology/ page for the full formula.
How many solar products does EcoFlow offer in 2026?
EcoFlow offers 4 products in their 2026 lineup: 4 batteries.
Where can I download EcoFlow datasheets?
We have direct manufacturer-published datasheet links for 4 of 4 EcoFlow products. See the Spec Sheet Downloads section below for direct PDF links.
How we score brands
Every EcoFlow model in our catalog is scored 0-100 using a transparent formula: efficiency (25 pts), product warranty (20 pts), performance warranty bonus (3 pts), temperature coefficient (12 pts), and datasheet verification (5 pts), on a 50-point baseline. The brand-level score is the simple average across all 4 models.
Read the full SolarSpec methodology →