be quiet! Straight Power 12 850W
850 W · Platinum
EcoFlow Delta 2
Portable power station · 2022
be quiet! Straight Power 12 850W takes it — here’s why.
In our weighted Specdex score, be quiet! Straight Power 12 850W lands at 90 and EcoFlow Delta 2 at 88. That puts be quiet! Straight Power 12 850W ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick be quiet! Straight Power 12 850W if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Pick EcoFlow Delta 2 if…
- ✓LiFePO4 chemistry on modern SKUs (4000+ cycles)
- ✓Solar input
- ✓Multiple AC/DC/USB-C outputs
Winner by scenario
Derived from the sub-score breakdown · not a separate testCables
EcoFlow Delta 2Compared on the cables sub-score
EcoFlow Delta 2 leads on cables (90 vs 86).
Efficiency
be quiet! Straight Power 12 850WCompared on the efficiency sub-score
be quiet! Straight Power 12 850W leads on efficiency (90 vs 83).
Noise
TieCompared on the noise sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
be quiet! Straight Power 12 850WSpecdex score per dollar at MSRP
be quiet! Straight Power 12 850W more score per dollar ($199 vs $999).
Score breakdown
Specs side-by-side
| Spec | be quiet! Straight Power 12 850W | EcoFlow Delta 2 |
|---|---|---|
| Wattage | 850 W | — |
| Efficiency | Platinum | — |
| Type | — | Portable power station |
| Release year | — | 2022 |
be quiet! Straight Power 12 850W
- +Modular cabling on most
- +ATX 3.1 / 12V-2x6 support
- +10-year warranty on many
- −Bulky on higher wattages
- −Fan noise varies by load
- −Cable length may not fit some cases
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)
FAQ: be quiet! Straight Power 12 850W vs EcoFlow Delta 2
Which is better, be quiet! Straight Power 12 850W or EcoFlow Delta 2? +
be quiet! Straight Power 12 850W scores 90 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is be quiet! Straight Power 12 850W worth the price? +
At $199, be quiet! Straight Power 12 850W delivers a Specdex score of 90 — strongest in efficiency.
Is EcoFlow Delta 2 worth the price? +
At $999, EcoFlow Delta 2 delivers a Specdex score of 88 — strongest in cables.
Does be quiet! Straight Power 12 850W or EcoFlow Delta 2 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 cables, be quiet! Straight Power 12 850W or EcoFlow Delta 2? +
EcoFlow Delta 2 — leads on cables (90 vs 86). Compared on the cables sub-score.
Which is better for efficiency, be quiet! Straight Power 12 850W or EcoFlow Delta 2? +
be quiet! Straight Power 12 850W — leads on efficiency (90 vs 83). Compared on the efficiency sub-score.