EcoFlow Delta 2
Portable power station · 2022
Corsair RM850e
850W · 80+ Gold · 12VHPWR
Corsair RM850e takes it — here’s why.
In our weighted Specdex score, EcoFlow Delta 2 lands at 88 and Corsair RM850e at 89. That puts Corsair RM850e ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick EcoFlow Delta 2 if…
- ✓LiFePO4 chemistry on modern SKUs (4000+ cycles)
- ✓Solar input
- ✓Multiple AC/DC/USB-C outputs
Pick Corsair RM850e if…
- ✓Sub-$150 12VHPWR-ready PSU
- ✓80+ Gold + Cybenetics Gold
- ✓7-year warranty
Winner by scenario
Derived from the sub-score breakdown · not a separate testEfficiency
Corsair RM850eCompared on the efficiency sub-score
Corsair RM850e leads on efficiency (92 vs 83).
Value for money
Corsair RM850eSpecdex score per dollar at MSRP
Corsair RM850e more score per dollar ($139 vs $999).
Score breakdown
Specs side-by-side
| Spec | EcoFlow Delta 2 | Corsair RM850e |
|---|---|---|
| Type | Portable power station | — |
| Release year | 2022 | — |
| Wattage | — | 850W |
| Efficiency | — | 80+ Gold |
| Cooling | — | 120 mm rifle-bearing fan |
| Modular | — | Fully modular |
| 12VHPWR | — | 1× 600W native |
| Warranty | — | 7 years |
EcoFlow Delta 2
- +LiFePO4 chemistry on modern SKUs (4000+ cycles)
- +Solar input
- +Multiple AC/DC/USB-C outputs
- −Heavy
- −Pricey per Wh
- −Shipping restrictions (Li-ion)
Corsair RM850e
- +Sub-$150 12VHPWR-ready PSU
- +80+ Gold + Cybenetics Gold
- +7-year warranty
- −Single-rail design (mostly fine)
- −Cables ribbon-flat (some prefer round)
- −No iCUE Link
FAQ: EcoFlow Delta 2 vs Corsair RM850e
Which is better, EcoFlow Delta 2 or Corsair RM850e? +
Corsair RM850e scores 89 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is EcoFlow Delta 2 worth the price? +
At $999, EcoFlow Delta 2 delivers a Specdex score of 88 — strongest in cables.
Is Corsair RM850e worth the price? +
At $139, Corsair RM850e delivers a Specdex score of 89 — strongest in value.
Does EcoFlow Delta 2 or Corsair RM850e last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for efficiency, EcoFlow Delta 2 or Corsair RM850e? +
Corsair RM850e — leads on efficiency (92 vs 83). Compared on the efficiency sub-score.
Which is the better value, EcoFlow Delta 2 or Corsair RM850e? +
Corsair RM850e — more score per dollar ($139 vs $999). Specdex score per dollar at MSRP.