OUPES Mega 3
#5 in Home backupFull review
A big home-backup station with a 3600W inverter, RV outlet and massive solar input, for households that want to run large appliances through outages.
OUPES $1,199$1,199
The OUPES Mega 3 is the better portable power station overall, rated 4.0 to 3.9. The OUPES Mega 3 leads on solar input and features. The Jackery HomePower 3000 wins on portability. The OUPES Mega 3 costs $150 less ($1,199 vs $1,349).
Jackery HomePower 3000
#12 in Home backupFull review
A big, affordable 3kWh station for RV owners and home backup who don’t need 240V or expansion.
Amazon $1,349 Jackery $1,349$1,349
Prices were last checked October 20, 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 3 for solar input (2,100 W max solar input vs 1,000 W max solar input) and features (UPS (20 ms), expandable, 100 W USB-C, app vs UPS (20 ms), 100 W USB-C, app).
- Choose the Jackery HomePower 3000 for portability (114 Wh per kg (59.5 lb (27 kg)) vs 81 Wh per kg (83.3 lb (37.8 kg))).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every home backup portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | OUPES Mega 3 | Jackery HomePower 3000 |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 25% | 86 $0.39 per rated Wh | 79 $0.44 per rated Wh |
| Tested capacity 15% | 73 86% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 96 LiFePO4, 3,500 cycles, 5-year warranty | 100 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 37 3,600 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 57 0-100% on AC in 2 h 12 min |
| Portability 10% | 66 81 Wh per kg (83.3 lb (37.8 kg)) | 100 114 Wh per kg (59.5 lb (27 kg)) |
| Solar input 5% | 63 2,100 W max solar input | 21 1,000 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 75 UPS (20 ms), 100 W USB-C, app |
Independent capacity tests
OUPES Mega 3
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 86% | 2,968W appliance load ran for 53.5 minutes. The article states 3,720Wh capacity in one place; the runtime math matches the rated 3,072Wh. |
Jackery HomePower 3000
No independent test published yet.
Specifications
| OUPES Mega 3 | Jackery HomePower 3000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,072 Wh | 3,072 Wh |
| Tested usable capacity | 2,642 Wh (86%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,500 to 80% | 4,000 to 70%+ |
| Expandable | Yes, up to 15,360 Wh | No |
| Output | ||
| AC output | 3,600 W (7,000 W surge) | 3,600 W (7,200 W surge) |
| AC outlets | 6 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 5 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 4 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | - |
| UPS / pass-through | Yes (20 ms switchover) | Yes (20 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | - |
| Full AC charge time | - | 2 h 12 min (2.2 hr from a 15A wall outlet) |
| Max solar input | 2,100 W | 1,000 W |
| Solar input voltage | 12-148V (MPPT 18-140V, 15A) | 16-60V (2 x DC8mm, combined) |
| Build | ||
| Weight | 83.3 lb (37.8 kg) | 59.5 lb (27 kg) |
| Dimensions | 25.2 x 11.9 x 17.2 in | 16.4 x 12.8 x 12 in |
| App | OUPES app (Wi-Fi/Bluetooth) | Jackery app |
| Warranty | 5 years | 5 years |