A proven 2kWh LiFePO4 station for home backup and RV trips with plenty of outlets. It costs less than the DELTA 3 Max Plus but has slower switchover and less output.
Amazon $1,049The EcoFlow DELTA 2 Max is the better portable power station overall, rated 4.1 to 3.9. The EcoFlow DELTA 2 Max leads on AC output, tested capacity and charging speed. The BLUETTI FridgePower wins on value and portability. The BLUETTI FridgePower costs $150 less ($899 vs $1,049).
For homeowners who want a set-and-forget battery backup that hides beside or behind the refrigerator. It is a poor fit for camping or job sites, where its weight, shape and two outlets work against it.
Amazon $1,699 BLUETTI $899Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the EcoFlow DELTA 2 Max for AC output (2,400 W continuous AC vs 1,800 W continuous AC), tested capacity (88% of rated capacity delivered (1 test) vs 86% of rated capacity delivered (1 test)) and charging speed (0-100% on AC in 1 h 20 min vs 0-100% on AC in 1 h 45 min).
- Choose the BLUETTI FridgePower for value ($0.45 per rated Wh vs $0.51 per rated Wh) and portability (102 Wh per kg (43.4 lb (19.7 kg)) vs 89 Wh per kg (50 lb (23 kg))).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | EcoFlow DELTA 2 Max | BLUETTI FridgePower |
|---|---|---|
| Overall rating | 4.1/5 | 3.9/5 |
| Value 25% | 67 $0.51 per rated Wh | 78 $0.45 per rated Wh |
| Tested capacity 15% | 81 88% of rated capacity delivered (1 test) | 71 86% of rated capacity delivered (1 test) |
| Battery life 15% | 91 LiFePO4, 3,000 cycles, 5-year warranty | 85 LiFePO4, 4,000 cycles |
| AC output 15% | 54 2,400 W continuous AC | 21 1,800 W continuous AC |
| Charging speed 10% | 84 0-100% on AC in 1 h 20 min | 71 0-100% on AC in 1 h 45 min |
| Portability 10% | 80 89 Wh per kg (50 lb (23 kg)) | 100 102 Wh per kg (43.4 lb (19.7 kg)) |
| Solar input 5% | 40 1,000 W max solar input | 41 1,000 W max solar input |
| Features 5% | 100 UPS (30 ms), expandable, 100 W USB-C, app | 80 UPS (10 ms), expandable, app |
Independent capacity tests
EcoFlow DELTA 2 Max
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| StorageReview | 1,800 Wh | 88% | AC discharge at a 350W load. Recharge took 2,370 Wh from the wall. |
BLUETTI FridgePower
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| APH Networks | 1,727 Wh | 85.7% | Constant 1,016 W electric heater load from full to shutoff (1 h 42 min). Measured AC charge 0-80% in 1 h 46 min in Standard mode. |
Specifications
| EcoFlow DELTA 2 Max | BLUETTI FridgePower | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 2,016 Wh |
| Tested usable capacity | 1,800 Wh (88%) | 1,727 Wh (86%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 to 80% | 4,000 BLUETTI rates it for over 4,000 cycles; APH Networks reports the claim as 80% capacity after 4,000 cycles |
| Expandable | Yes, up to 6,144 Wh | Yes, up to 8,064 Wh |
| Output | ||
| AC output | 2,400 W (4,800 W surge) | 1,800 W (3,600 W surge) |
| Boost mode (resistive loads) | 3,400 W | 3,000 W |
| AC outlets | 6 total | 2 |
| 120V 20A outlets (NEMA 5-20R) | 6 | - |
| AC waveform | Pure sine wave | - |
| USB-C ports | 2 (up to 100 W each) | 0 |
| USB-A ports | 4 | 0 |
| 12 V car outlet | Yes | No |
| DC5521 ports | 2 | 0 |
| UPS / pass-through | Yes (30 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,440 W |
| Full AC charge time | 1 h 20 min (0-80% in 1.1 h on AC alone; 43 min with AC and solar together) | 1 h 45 min (0-80% in 60 min, full in 105 min, as reported by APH Networks; BLUETTI's own pages read did not state a time. APH measured 0-80% in 1 h 46 min in Standard mode.) |
| Max solar input | 1,000 W | 1,000 W |
| Solar input voltage | 11-60V, 15A (2 inputs, 500W each) | 12-60V, 20 A max (XT60) |
| Car charging | 96 W | - |
| Build | ||
| Weight | 50 lb (23 kg) | 43.4 lb (19.7 kg) |
| Dimensions | 19.6 x 9.5 x 12 in | 22.83 x 13.78 x 3.07 in |
| App | EcoFlow app (Wi-Fi and Bluetooth) | BLUETTI app (Wi-Fi + Bluetooth; Alexa and Google Home) |
| Warranty | 5 years | - |
| Released | 2023-05 | 2026-06 |
