A 2kWh LiFePO4 station with an RV outlet and large expansion for home backup and RV owners on a budget.
OUPES $699The OUPES Mega 2 Pro is the better portable power station overall, rated 4.1 to 3.5. The OUPES Mega 2 Pro leads on value, battery life and portability. The BLUETTI Premium 200 V2 wins on AC output. The OUPES Mega 2 Pro costs $850 less ($699 vs $1,549).
For buyers who want 2 kWh with higher output than the Elite 200 V2 for running larger appliances.
BLUETTI $1,549Prices 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 OUPES Mega 2 Pro for value ($0.34 per rated Wh vs $0.75 per rated Wh), battery life (LiFePO4, 4,000 cycles, 5-year warranty vs LiFePO4, 5-year warranty) and portability (93 Wh per kg (48.8 lb (22.1 kg)) vs 86 Wh per kg (53.4 lb (24.2 kg))).
- Choose the BLUETTI Premium 200 V2 for AC output (2,700 W continuous AC vs 2,500 W continuous AC).
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 | OUPES Mega 2 Pro | BLUETTI Premium 200 V2 |
|---|---|---|
| Overall rating | 4.1/5 | 3.5/5 |
| Value 25% | 94 $0.34 per rated Wh | 31 $0.75 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 4,000 cycles, 5-year warranty | 70 LiFePO4, 5-year warranty |
| AC output 15% | 58 2,500 W continuous AC | 67 2,700 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 82 0-100% on AC in 1 h 24 min |
| Portability 10% | 87 93 Wh per kg (48.8 lb (22.1 kg)) | 74 86 Wh per kg (53.4 lb (24.2 kg)) |
| Solar input 5% | 40 1,000 W max solar input | 39 1,000 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 140 W USB-C, app | 75 UPS (15 ms), 100 W USB-C, app |
Specifications
| OUPES Mega 2 Pro | BLUETTI Premium 200 V2 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 2,073.6 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 4000+ cycles to 80% | - |
| Expandable | Yes, up to 10,240 Wh | No |
| Output | ||
| AC output | 2,500 W | 2,700 W |
| Boost mode (resistive loads) | 3,600 W | 3,900 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 |
| USB-C ports | 2 (up to 140 W each) | 2 (up to 100 W each) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 0 | 0 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | - | 1 h 24 min (0-80% in about 1 h; AC + solar up to 2400W) |
| Max solar input | 1,000 W | 1,000 W |
| Solar input voltage | 12-80V (MPPT 18-80V, 30A) | 12-60V, 20A |
| Car charging | 96 W | 192 W |
| Build | ||
| Weight | 48.8 lb (22.1 kg) | 53.4 lb (24.2 kg) |
| Dimensions | 18.8 x 11.6 x 11.6 in | 13.78 x 9.84 x 12.74 in |
| App | OUPES app (Wi-Fi/Bluetooth) | Wi-Fi + Bluetooth |
| Warranty | 5 years | 5 years |
| Released | 2026-06 | 2025-04 |
