Corsair
Corsair RM850e
850W · 80+ Gold · 12VHPWR
89
/ 100
From $139
VS
EcoFlow Delta Pro 3 wins by 3
EcoFlow
EcoFlow Delta Pro 3
Portable power station · 2024
92
/ 100
From $3,699
Specdex verdict
EcoFlow Delta Pro 3 takes it — here’s why.
In our weighted Specdex score, Corsair RM850e lands at 89 and EcoFlow Delta Pro 3 at 92. That puts EcoFlow Delta Pro 3 ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Corsair RM850e if…
- ✓Sub-$150 12VHPWR-ready PSU
- ✓80+ Gold + Cybenetics Gold
- ✓7-year warranty
Pick EcoFlow Delta Pro 3 if…
- ✓LiFePO4 chemistry on modern SKUs (4000+ cycles)
- ✓Solar input
- ✓Multiple AC/DC/USB-C outputs
Corsair RM850e 89
vs 92 EcoFlow Delta Pro 3
Score breakdown
Corsair RM850e
89 efficiency 92
build 90
features 88
value 96
noise 0
cables 0
EcoFlow Delta Pro 3
92 efficiency 87
build 0
features 0
value 80
noise 86
cables 90
Specs side-by-side
| Spec | Corsair RM850e | EcoFlow Delta Pro 3 |
|---|---|---|
| Wattage | 850W | — |
| Efficiency | 80+ Gold | — |
| Cooling | 120 mm rifle-bearing fan | — |
| Modular | Fully modular | — |
| 12VHPWR | 1× 600W native | — |
| Warranty | 7 years | — |
| Type | — | Portable power station |
| Release year | — | 2024 |
Corsair RM850e
Pros
- +Sub-$150 12VHPWR-ready PSU
- +80+ Gold + Cybenetics Gold
- +7-year warranty
Cons
- −Single-rail design (mostly fine)
- −Cables ribbon-flat (some prefer round)
- −No iCUE Link
EcoFlow Delta Pro 3
Pros
- +LiFePO4 chemistry on modern SKUs (4000+ cycles)
- +Solar input
- +Multiple AC/DC/USB-C outputs
Cons
- −Heavy
- −Pricey per Wh
- −Shipping restrictions (Li-ion)
FAQ: Corsair RM850e vs EcoFlow Delta Pro 3
Which is better, Corsair RM850e or EcoFlow Delta Pro 3? +
EcoFlow Delta Pro 3 scores 92 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Corsair RM850e worth the price? +
At $139, Corsair RM850e delivers a Specdex score of 89 — strongest in value.
Is EcoFlow Delta Pro 3 worth the price? +
At $3,699, EcoFlow Delta Pro 3 delivers a Specdex score of 92 — strongest in cables.
Does Corsair RM850e or EcoFlow Delta Pro 3 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.