For RV owners and home-backup buyers who want 2 kWh, a TT-30 outlet and a UPS at a low price per watt-hour, and don’t need to expand it later.
Amazon $849.98 Renogy $799The Renogy PowerStation 2000 is the better portable power station overall, rated 4.0 to 3.7. The Renogy PowerStation 2000 leads on solar input and battery life. The EcoFlow DELTA 3 Max wins on portability. The Renogy PowerStation 2000 costs $100 less ($799 vs $899).
For buyers who want 2 kWh of fast-charging backup at a mid-range price and do not need heavy solar input.
Amazon $899Prices were last checked October 24, 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 Renogy PowerStation 2000 for solar input (1,200 W max solar input vs 500 W max solar input) and battery life (LiFePO4, 3,000 cycles, 3-year warranty vs LiFePO4, 5-year warranty).
- Choose the EcoFlow DELTA 3 Max for portability (101 Wh per kg (44.8 lb (20.3 kg)) vs 87 Wh per kg (51.8 lb (23.5 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 | Renogy PowerStation 2000 | EcoFlow DELTA 3 Max |
|---|---|---|
| Overall rating | 4.0/5 | 3.7/5 |
| Value 25% | 86 $0.39 per rated Wh | 79 $0.44 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 41 79% of rated capacity delivered (1 test) |
| Battery life 15% | 81 LiFePO4, 3,000 cycles, 3-year warranty | 70 LiFePO4, 5-year warranty |
| AC output 15% | 54 2,400 W continuous AC | 54 2,400 W continuous AC |
| Charging speed 10% | 79 0-100% on AC in 1 h 30 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 77 87 Wh per kg (51.8 lb (23.5 kg)) | 100 101 Wh per kg (44.8 lb (20.3 kg)) |
| Solar input 5% | 51 1,200 W max solar input | 11 500 W max solar input |
| Features 5% | 75 UPS (20 ms), 100 W USB-C, app | 75 UPS (10 ms), 100 W USB-C, app |
Independent capacity tests
Renogy PowerStation 2000
No independent test published yet.
EcoFlow DELTA 3 Max
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 79% | Efficiency test (load not stated in the review). Measured AC recharge 0-100% in 68 min; idle draw 27W. |
Specifications
| Renogy PowerStation 2000 | EcoFlow DELTA 3 Max | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 2,048 Wh |
| Tested usable capacity | - | 1,618 Wh (79%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 to 80% (0.5C, 80% DOD) | - |
| Expandable | No | - |
| Output | ||
| AC output | 2,400 W (3,600 W surge) | 2,400 W (4,800 W surge) |
| Boost mode (resistive loads) | - | 3,400 W |
| AC outlets | 5 total | 4 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | - |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 3 (up to 100 W each) |
| USB-A ports | 4 | 1 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 0 | 0 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | - | 1,800 W |
| Full AC charge time | 1 h 30 min (About 90 min 0-100% (manual); 0-80% in about 1 h (product page)) | - |
| Max solar input | 1,200 W | 500 W |
| Solar input voltage | 12-60V, 25A max | - |
| Car charging | 102 W | 96 W |
| Build | ||
| Weight | 51.8 lb (23.5 kg) | 44.8 lb (20.3 kg) |
| Dimensions | 17.72 x 10.46 x 13.74 in | 494 x 239 x 305 mm |
| App | PowerStation Manager app (Wi-Fi and Bluetooth) | Wi-Fi + Bluetooth |
| Warranty | 3 years | 5 years |
| Released | 2026-07 | 2025-09 |
