OUPESPower stationLiFePO4
Mega 3
3600W portable power station with 3072Wh capacity and expandable battery system up to 15.36kWh
Capacity
3,072 Wh
AC output
3,600 W
Surge
7,000 W
duration not stated
Solar input
960 W
Cycle life
3,500
Weight
83.33 lb
Max system
15,360 Wh
Warranty
5 yr
Best price
Updated 3h ago
$1,049
via OUPES Direct · ships free
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Price history · 90 days
OUPES Direct
OUPES Direct
$1,049
90-day low
$1,049 (2026-06-01)
Sale-window patterns arrive after we accumulate ≥6 months of price history. Set a price alert to catch flash dips below the 90-day low — we email you the moment it hits.
What reviewers said about this exact unit
10 sources · linked & timestampedWe don't review power stations ourselves. We aggregate verbatim quotes from trusted reviewers, link to the source video with timestamps, and flag where they disagree.
TH
The Solar Labestablished tier★ Verifiedtop pick
OUPES Mega 3 Review: Surprisingly Good Budget Alternative to Delta Pro“for the first time since us being on the hunt for a more affordable um Power Station this one is not an oops it's actually not a bad little unit”Open at 13:43
TH
The Solar Labestablished tier★ Verifiedcaution noted
OUPES Mega 3 Review: Surprisingly Good Budget Alternative to Delta Pro“when you go on the Opus website it's more of an oops the whole website is basically a recreation of eof flow's website and I get why but it doesn't give me confidence at all”Open at 10:38
TH
The Solar Labestablished tier★ Verifiedranked
OUPES Mega 3 Review: Surprisingly Good Budget Alternative to Delta Pro“this unit Stacks up pretty well against the Delta Pro this is the main reason that a lot of companies actually exist in the first place”Open at 12:37
TH
The Solar Labestablished tier★ Verifiedcaution noted
OUPES Mega 3 Review: Surprisingly Good Budget Alternative to Delta Pro“this unit advertises Peak shaving on their website but there is no peak shaving functionality on the app which is just kind of a little bit of a buzz kill”Open at 11:17
TH
The Solar Labestablished tier★ Verifiedtop pick
OUPES Mega 3 Review: Surprisingly Good Budget Alternative to Delta Pro“1,700 bucks that is a good deal for this”Open at 3:15
UN
Under the Medianmid tier★ Verifiedcaution noted
OUPES Mega 3: Powerful 3600W Station with Notable Weight Trade-off“this power station is a brute it weighs about 83 pounds it has an awful lot of components in it and that very large battery does have some weight to it”Open at 2:52
UN
Under the Medianmid tier★ Verifiedtop pick
OUPES Mega 3: Powerful 3600W Station with Notable Weight Trade-off“this unit is very well designed and engineered and has a lot of really good built-in features that I'm going to talk about”Open at 1:33
UN
Under the Medianmid tier★ Verifiedtop pick
OUPES Mega 3: Powerful 3600W Station with Notable Weight Trade-off“it can be charged up with six solar panels in about two and a half hours if you have really good Sun I think that is incredibly fast”Open at 4:22
UN
Under the Medianmid tier★ Verifiedranked
OUPES Mega 3: Powerful 3600W Station with Notable Weight Trade-off“the one thing that I can say that's the major difference between my gas generator and the Opus unit is that the Opus is much quieter”Open at 6:36
UN
Under the Medianmid tier★ Verifiedcaution noted
OUPES Mega 3: Powerful 3600W Station with Notable Weight Trade-off“the only item in your home that this will not power is your central air that is usually because most central air conditioning units are 220 volts and this just does not supply 220 volts”Open at 2:29
Runtime predictions for your loads
Based on 3,072 Wh capacity · 95% LiFePO4 DoD · 90% AC inverter efficiency. Solar column assumes ~25% of rated input as sustained sun average. Phase-1 uses constant-load math; time-resolved multi-day SOC simulation is the Phase-2 north star.
| Load profile | Continuous draw | Runtime estimate |
|---|---|---|
| CPAP only (overnight) | 60W | 1.8 days |
| Fridge only (cycle-averaged) | 70W | 1.6 days |
| Wifi router + LED lights | 55W | 2.0 days |
| Your full continuous load (215W) | 215W | 12.2 hr |
| Microwave + base load (peak) | 1300W | 2.0 hr |
| Window AC 8,000 BTU (avg) | 700W | 3.8 hr |
Detailed specs
Sourced from manufacturer datasheet · verified 1mo agoFor advanced shoppers. Plug types matter if you have a 30A RV; MPPT range matters if you plan custom solar arrays.
Battery behavior
| Cell chemistry | LiFePO4 |
| Cycle life @ 80% capacity | 3,500 |
| Dimensions | 25.5×11.9×17.2 |
| Parasitic loss (idle, AC off) | pending verification |
Why parasitic loss matters: for store-and-forget hurricane prep, even ~2W idle drain adds up — a fully charged unit can drain in months sitting in a closet.
Inputs
Solar — Solar InputMC4
18–140V · 15A max · 2100W max
How Mega 3 compares to alternatives
Mega 3 specs verified from automated extraction with cross-source verification. Alternatives marked “pending verify” haven't been through the verification pipeline yet.
Capacity
Mega 33,072 Wh
EcoFlow RIVER 2 Pro768 Wh
Bluetti Apex 3002,765 Wh
AC continuous
Mega 33,600 W
EcoFlow RIVER 2 Pro800 W
Bluetti Apex 3003,840 W
Surge
Mega 37,000 W
EcoFlow RIVER 2 Pro1,600 W
Bluetti Apex 3007,680 W
Cycle life
Mega 33,500
EcoFlow RIVER 2 Pro3,000
Bluetti Apex 3006,000
Solar input
Mega 3960 W
EcoFlow RIVER 2 Pro220 W
Bluetti Apex 3002,400 W
Native 240V
Mega 3—
EcoFlow RIVER 2 Pro—
Bluetti Apex 300no — requires Hub A1 for parallel connection
Max system
Mega 315,360 Wh
EcoFlow RIVER 2 Pro—
Bluetti Apex 30019,354 Wh
Weight
Mega 383.33 lb
EcoFlow RIVER 2 Pro18.2 lb
Bluetti Apex 30083.8 lb
Best price now
Mega 3$1,049
EcoFlow RIVER 2 Pro$499
Bluetti Apex 300$1,499
Wh per dollar
Mega 32.93
EcoFlow RIVER 2 Pro1.54
Bluetti Apex 3001.84
| Metric | Mega 3 | EcoFlow RIVER 2 Pro | Bluetti Apex 300 |
|---|---|---|---|
| Capacity | 3,072 Wh | 768 Wh | 2,765 Wh |
| AC continuous | 3,600 W | 800 W | 3,840 W |
| Surge | 7,000 W | 1,600 W | 7,680 W |
| Cycle life | 3,500 | 3,000 | 6,000 |
| Solar input | 960 W | 220 W | 2,400 W |
| Native 240V | — | — | no — requires Hub A1 for parallel connection |
| Max system | 15,360 Wh | — | 19,354 Wh |
| Weight | 83.33 lb | 18.2 lb | 83.8 lb |
| Best price now | $1,049 | $499 | $1,499 |
| Wh per dollar | 2.93 | 1.54 | 1.84 |
Output ports comparison
How many of each plug-type does each unit have? Match against your real loads — TT-30R if you have a 30A RV, L14-30R if you want a transfer switch, USB-C PD if you charge laptops.
120V AC outlets
Standard 15A outlet
NEMA 5-15R
Mega 3—
EcoFlow RIVER 2 Pro×4
Bluetti Apex 300×2
| Plug | Mega 3 | EcoFlow RIVER 2 Pro | Bluetti Apex 300 |
|---|---|---|---|
Standard 15A outlet NEMA 5-15R | — | ×4 | ×2 |
USB
USB-A
USB-A (Type A)
Mega 3—
EcoFlow RIVER 2 Pro×3
Bluetti Apex 300×2
| Plug | Mega 3 | EcoFlow RIVER 2 Pro | Bluetti Apex 300 |
|---|---|---|---|
USB-A USB-A (Type A) | — | ×3 | ×2 |
Low-voltage DC
12V cigarette / car
12V DC cigarette socket
Mega 3—
EcoFlow RIVER 2 Pro×1
Bluetti Apex 300×2
| Plug | Mega 3 | EcoFlow RIVER 2 Pro | Bluetti Apex 300 |
|---|---|---|---|
12V cigarette / car 12V DC cigarette socket | — | ×1 | ×2 |
Counts are output-direction only. Charging cables (input ports) live in the Detailed specs section above.