EcoFlow DELTA 2 Max
66BatteryRank score
$949as of 2026-07-11
Fair price← CompareCheck price on Amazon 
Check price on Amazon
EcoFlow DELTA 2 Max vs Goal Zero Yeti 1500 6th gen (LiFePO4)
Decision readout
Better station
EcoFlow DELTA 2 Max leads by 18 points overall.
Better buy today
No purchase urgency: the performance leader is not at a Good or Great price today.
Goal Zero Yeti 1500 6th gen (LiFePO4)
48BatteryRank score
$1,499.95as of 2026-07-11
Fair priceWhat changes the decision
- Home backup: EcoFlow DELTA 2 Max — more usable capacity and AC output
- Camping & RV: EcoFlow DELTA 2 Max — lighter and easier to carry
01 · Score evidence
Score breakdown
66
EcoFlow DELTA 2 Max
Overall
48
Goal Zero Yeti 1500 6th gen (LiFePO4)
67
POWER
EcoFlow DELTA 2 Max +40
27
Usable capacity and how much you can run at once.
66
TRUST
Goal Zero Yeti 1500 6th gen (LiFePO4) +18
84
Owner reputation, safety record, warranty, and build durability.
62
CHARGING
Goal Zero Yeti 1500 6th gen (LiFePO4) +10
72
Wall and solar recharge speed.
63
LIVABILITY
EcoFlow DELTA 2 Max +26
37
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
02 · Usable energy
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
EcoFlow DELTA 2 Max
Rated (on the box)2,048 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)1,741 Wh
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
Goal Zero Yeti 1500 6th gen (LiFePO4)
Rated (on the box)1,505 Wh
The marketing number — total cell capacity.
Usable (at the outlet, est.)1,279 Wh
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
03 · Sourced hardware
Key specs, side by side
| Spec | EcoFlow DELTA 2 Max | Goal Zero Yeti 1500 6th gen (LiFePO4) |
|---|---|---|
| Usable capacity | 2,048 Wh | 1,505 Wh |
| Continuous power output | 2,400 W | 2,000 W |
| Surge power output | 4,800 W | 3,600 W |
| Max solar input | 1,000 W | 900 W |
| AC charge time (0–100%) | — | 66 min |
| Weight | 23 kg | 23.9 kg |
| Rated cycle life | 3,000 cycles | 4,000 cycles |
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Hover any figure for its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
04 · Tracked street price
Price & fair-price verdict
EcoFlow DELTA 2 Max
$949as of 2026-07-11Fair price
Goal Zero Yeti 1500 6th gen (LiFePO4)
$1,499.95as of 2026-07-11Fair price
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- EcoFlow DELTA 2 Max #7 of 10 in Best for RV & Van Life · #10 of 10 in Best for CPAP