EcoFlow DELTA 3 Max
66BatteryRank score
$749as of 2026-07-11
Good priceRecommended today
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EcoFlow DELTA 3 Max vs Fossibot F2400
Decision readout
Better station
EcoFlow DELTA 3 Max leads by 18 points overall.
Better buy today
EcoFlow DELTA 3 Max combines the performance lead with a favorable current price.
Fossibot F2400
48BatteryRank score
$669as of 2026-07-11
Good priceWhat changes the decision
- Home backup: EcoFlow DELTA 3 Max — more usable capacity and AC output
- Camping & RV: EcoFlow DELTA 3 Max — lighter and easier to carry
01 · Score evidence
Score breakdown
66
EcoFlow DELTA 3 Max
Overall
48
Fossibot F2400
67
POWER
EcoFlow DELTA 3 Max +16
51
Usable capacity and how much you can run at once.
68
TRUST
EcoFlow DELTA 3 Max +4
64
Owner reputation, safety record, warranty, and build durability.
52
CHARGING
EcoFlow DELTA 3 Max +30
22
Wall and solar recharge speed.
74
LIVABILITY
EcoFlow DELTA 3 Max +13
61
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 3 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.
Fossibot F2400
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.
03 · Sourced hardware
Key specs, side by side
| Spec | EcoFlow DELTA 3 Max | Fossibot F2400 |
|---|---|---|
| Usable capacity | 2,048 Wh | 2,048 Wh |
| Continuous power output | 2,400 W | 2,400 W |
| Surge power output | 4,800 W | 4,800 W |
| Max solar input | 500 W | 500 W |
| AC charge time (0–100%) | 68 min | 120 min |
| Weight | 20.3 kg | 22 kg |
| Rated cycle life | 4,000 cycles | 3,500 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 3 Max
$749as of 2026-07-11Good price
Fossibot F2400
$669as of 2026-07-11Good price
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- EcoFlow DELTA 3 Max #6 of 10 in Best for RV & Van Life · #9 of 10 in Best for CPAP