What it can run, and for how long
A power station is a battery with an inverter: it stores energy as watt-hours (Wh) and delivers it as AC watts (W). The OUPES Mega 1 Home Backup & Portable Power Station stores 1,024 Wh, of which about 870 Wh reaches your appliances after losses, and its inverter limits the load to 2,000 W at a time.
| Appliance (typical) | Running / starting watts | Can it run it? | Runtime on a full charge | |
|---|---|---|---|---|
| Refrigerator (modern, about 18–22 cu ft) | 150 W / 600 W start | Yes | 14.5 h | |
| Chest freezer (about 7 cu ft) | 100 W / 400 W start | Yes | 24.9 h | |
| Sump pump (1/3 hp) | 800 W / 1,500 W start | Yes | 7.3 h | |
| Well pump (1/2 hp) | 1,000 W / 2,100 W start | Check surge | 4.4 h | |
| Gas furnace blower | 750 W / 1,500 W start | Yes | 2.3 h | |
| Window air conditioner (5,000–8,000 BTU) | 600 W / 1,800 W start | Yes | 2.4 h | |
| CPAP with heated humidifier | 70 W | Yes | 12.4 h | |
| Home oxygen concentrator | 300 W | Yes | 2.9 h | |
| Wi-Fi router and modem | 25 W | Yes | 34.8 h | |
| LED television (55 in) | 100 W | Yes | 8.7 h | |
| LED lighting (10 bulbs) | 100 W | Yes | 8.7 h | |
| Laptop and charger | 60 W | Yes | 14.5 h | |
| Phones and tablets charging (4) | 40 W | Yes | 21.8 h | |
| Ceiling or box fan | 75 W / 150 W start | Yes | 11.6 h | |
| Microwave oven (1,000 W cooking) | 1,500 W | Yes | 5.8 h | |
| Coffee maker | 900 W | Yes | 9.7 h | |
| Garage door opener (1/2 hp) | 550 W / 1,100 W start | Yes | 3.3 days | |
| Washing machine | 500 W / 1,300 W start | Yes | 4.4 h | |
| Electric space heater (1,500 W) | 1,500 W | Yes | 35 min | |
| Central air conditioner (3-ton) | 3,500 W / 10,500 W start | No | — |
Wattstanding calculationWattstanding calculation — runtime = capacity (Wh) × 85% ÷ (running watts × duty cycle). The 85% covers inverter and conversion losses; duty cycle is the share of time the appliance actually draws power. Appliance wattages are typical planning values, not measurements — read the nameplate on your own appliance. Real runtime also depends on temperature, battery age and the maker's inverter efficiency.
| Scenario | Running watts | Starting watts needed | Average draw | Fits | Estimated runtime |
|---|---|---|---|---|---|
| Essentials: refrigerator, router, lights, phones | 315 W | 765 W | 225 W | Fits | 3.9 h |
| Essentials + sump pump | 1,115 W | 1,815 W | 345 W | Fits | 2.5 h |
| Essentials + furnace blower + TV | 1,165 W | 1,915 W | 700 W | Fits | 1.2 h |
| Essentials + window air conditioner | 915 W | 2,115 W | 585 W | Check surge | 1.5 h |
Practical noteCooling appliances cycle on and off, so a refrigerator draws far less than its running watts over a day, but each start needs a brief surge. If a load's starting watts exceed the maker's surge rating, the inverter can shut down.
Recharging
Recharge time depends on the source. Solar numbers below are our calculation for the panel wattage shown, assuming 75% real-world output and the approximate annual-average peak sun hours for each region; winter and cloud cover cut them sharply.
| Panel total | Basis | Florida and the Gulf Coast | Texas | California |
|---|---|---|---|---|
| 100 W | — | 2.6 sunny days | 2.7 sunny days | 2.5 sunny days |
| 200 W | — | 1.3 sunny days | 1.4 sunny days | 1.2 sunny days |
| 400 W | — | 0.7 sunny days | 0.7 sunny days | 0.6 sunny days |
- solar input up to 800 W (as stated)
- AC wall charging up to 1,400 W (as stated) — about 0.7 h from empty at that rate before losses
See the solar recharge calculator for your own panel size and sun hours.
Connecting it to a home
You can plug appliances straight into the unit's outlets. Powering a home's circuits is different: it needs a properly rated transfer switch or the maker's home-integration hardware, installed by a licensed electrician.
SafetyNever plug a generator or battery system into a wall outlet to power the house ("backfeeding"): it can send electricity back into the utility lines and injure line workers, and it can start fires. Connecting a generator to a home's wiring is a job for a licensed electrician, with the permit and inspection your local code requires. Wattstanding does not give wiring instructions.
If you plan to connect it to the house, compare it with the equipment in our transfer switch and hookup library and read the whole-house guide.
Fit check before you buy
Checks to make against your loads and your plan before ordering.
✓ Required? Check firsti Good to know
- ✓Loads fit the outputAdd up the running watts of everything you will run together; keep the total under 2,000 W.
- ?Starting surgeNo surge rating was stated in the sources we read; confirm with the maker before running motors.
- ?Outlets and voltage4*NEMA 5-20R (120V/20A) The listing mentions 120/240 V output — confirm which model variant has it.
- iRecharge planDecide how you will refill it: wall power, solar or a generator, within its stated input limits.
- iExpansionBoost its power capacity fivefold to 5120Wh with two B2 battery packs. As your needs grow, Mega 1 portable power station 2000w is ready to e
- iWeight27.8 lb as stated — plan how you will move it.
Specifications
Each figure is labelled with where it comes from. Numbered references link to the source list below.
Manufacturer storeRetailer listingWattstanding calculationNot verified
Published specifications
| Battery capacity | 1,024 Wh[S1] | Manufacturer store |
|---|---|---|
| Continuous AC output | 2,000 W[S1] | Manufacturer store |
| 120/240 V output | Listed[S1] | Manufacturer store |
| Cycle life | 3,500 cycles to 80% capacity[S1] | Manufacturer store |
| AC outlets | 4*NEMA 5-20R (120V/20A)[S1] | Manufacturer store |
| USB-C ports | 2*USB-C (PD 100W per port)[S1] | Manufacturer store |
| UPS / switchover | < 20ms, 2000W[S1] | Manufacturer store |
| Solar input (as stated) | 800 W[S1] | Manufacturer store |
| AC charging input | 1,400 W[S1] | Manufacturer store |
| Weight | 27.8 lb[S1] | Manufacturer store |
| Dimensions | 15.1 x 9.1 x 11.6in (384 x 232 x 295mm)[S1] | Manufacturer store |
| App / connectivity | Control Mega 1 effortlessly with our smart app, allowing you to monitor and adju[S1] | Manufacturer store |
| Warranty | Up to 6 Years[S1] | Manufacturer store |
Wattstanding calculations
| Usable energy (85% of capacity) | 870 Wh | Wattstanding calculation |
|---|---|---|
| Refrigerator runtime (typical) | 14.5 h | Wattstanding calculation |
| Price per kWh of storage | $683 | Wattstanding calculation |
Limitations to weigh
- Specifications are the maker's or seller's; Wattstanding has not tested this product.
- Runtime figures are calculations with stated assumptions, not measurements.
- Prices change; confirm the price, stock and what is included before ordering.
- No surge rating was found in the sources we read.
Alternatives worth comparing
OUPES Mega 1 Lite Home Backup & Portable Power Station1,024 Wh, 2,000 W; $100 less
OUPES Mega 2 Pro Home Backup & Portable Power Station2,048 Wh, 2,500 W; same price
Dabbsson DBS2300 Portable & Home Backup Power Station2,330 Wh, 2,200 W; $200 more
Dabbsson DBS2300 Plus Portable & Home Backup Power Station2,330 Wh, 2,200 W; $200 more
Where to buy
Our link opens this exact product page. Prices and stock change; check before you order.
$699OUPES listed price (base model) · seen 30 Sep 2026
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Questions buyers ask
How long will the OUPES Mega 1 Home Backup & Portable Power Station run a refrigerator?
About 14.5 h on a full charge by our calculation (typical modern refrigerator, 40% duty cycle, 85% efficiency). Your refrigerator's nameplate and its door-opening habits change this.
Can the OUPES Mega 1 Home Backup & Portable Power Station run a sump pump or well pump?
Sump pump (1/3 hp): yes. Well pump (1/2 hp): check the starting watts. These use typical wattages; read the pump's nameplate.
Can I use it to power my whole house?
Not by plugging the house into it. With 1,024 Wh it holds about 3% of one day's energy for a home that uses 30 kWh a day (an example figure — check your own bill), and connecting it to home wiring needs a licensed electrician.
Where can I buy the OUPES Mega 1 Home Backup & Portable Power Station?
1 seller list it: OUPES.
Sources and verification
- OUPES — OUPES Mega 1 Home Backup & Portable Power Station — product page and specifications Retrieved 30 Sep 2026
Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work