The catch
OUPES Mega 1
You only get the 36-minute full-charge claim when AC and solar are used together.
Side by side
More rated output and solar intake point to the Mega 1. A bit more base energy is what the C1000 offers, and each supports compatible expansion.
Before you buy
With a steady 300W load, the model has OUPES Mega 1 lasting about 2.7 hours and Anker SOLIX C1000 2.8 hours.
Where this comes from
Hours = nominal Wh × 0.8 / 300W, with 1024Wh and 1056Wh as the inputs. The 80% factor is a shared planning allowance for unusable energy and conversion losses and not a measured efficiency. Runtime also depends on idle draw, temperature and the real load.
The catch
You only get the 36-minute full-charge claim when AC and solar are used together.
The catch
Compared with the C1000 Gen 2 it weighs more and has a lower continuous AC rating. The two generations also don’t share the same expansion path.


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The Mega 1 is the choice for more rated output and solar intake. The C1000 has slightly more base energy, and compatible expansion works with both.
The batteries are close enough that the load comes first
Which one fits
C1000 is rated at 1,800W continuous and Mega 1 at 2,000W. Only the Mega rating covers a 1,900W running load, and even then its startup and outlet limits apply.
C1000 holds 1,056Wh versus 1,024Wh, a 32Wh difference that adds roughly five modeled minutes at 300W. That is a small reserve advantage.
The common planning assumptions put OUPES Mega 1 at 2.7 hours and Anker SOLIX C1000 at 2.8. Measure the real wattage before you set an overnight reserve you require.
OUPES Mega 1 accepts up to 800W of input and Anker SOLIX C1000 up to 600W. Look past this total and check your panel strings against the voltage and current limits as well.
In practice
With a steady 300W load, the model has OUPES Mega 1 lasting about 2.7 hours and Anker SOLIX C1000 2.8 hours.
Hours = nominal Wh × 0.8 / 300W, with 1024Wh and 1056Wh as the inputs. The 80% factor is a shared planning allowance for unusable energy and conversion losses and not a measured efficiency. Runtime also depends on idle draw, temperature and the real load.
Anker SOLIX C1000 stores 37.1 nominal watt-hours per pound, and OUPES Mega 1 stores about 36.8.
The calculation is nominal energy over published weight, 1024 / 27.8 and 1056 / 28.44. It compares stored energy per lifted weight. Efficiency and handle comfort are not measured here.
Compared with C1000, Mega 1 gives you 200W more continuous output and weighs 0.64 lb less, at the cost of 32Wh of nominal capacity.
1056 - 1024 = 32Wh. 28.44 - 27.8 = 0.64 lb. 2000 - 1800 = 200W.

OUPES, Mega 1
A starter battery that’s easy to handle and can grow. The 2000W inverter can cover a short high-draw job. Two optional B2 batteries solve a different problem, keeping smaller loads running longer.

Anker SOLIX, A1761
The original C1000 combines 1,056Wh with an 1,800W inverter and can take a matching expansion battery. It still makes sense when adding capacity is a higher priority than saving weight.
Spec by spec
| Spec | OUPES Mega 1 | Anker SOLIX C1000 | In practice |
|---|---|---|---|
| Nominal battery energy | 1024 Wh | 1056 Wh | The starting runtime budget comes from stored energy. |
| Continuous AC output | 2000 W | 1800 W | Load screening uses this sustained rating, which is separate from surge and boost modes. |
| Lifting weight | 27.8 lb | 28.44 lb | Flat ground is where wheels help. A trunk, step or shelf still takes a lift. |
| Maximum solar input | 800 W | 600 W | Panel voltage, current and per-port limits have to fit as well. |
| Dedicated battery expansion | Supported with compatible equipment | Supported with compatible equipment | Integrated battery expansion is not the same as charging from an external source. |
| Published transfer limit | 20 ms | 20 ms | Check the exact device being connected. Even a short transfer specification can’t guarantee that every load runs without interruption. |
Trade-offs
Decision guide
Pick the Mega 1 for more rated output and solar intake. Pick the C1000 for slightly more base energy, since both support compatible expansion.
The Mega holds 1,024Wh and the C1000 holds 1,056Wh. Under the shared planning assumption, that 32Wh gap is only about five minutes at 300W.
The Mega reaches 2,000W, versus 1,800W. A supported 1,900W load fits within only one rating, even though each has larger surge or boost headlines.
The Mega lists 800W of solar, against 600W. Check voltage and current before you put any value on that extra 200W.
By the numbers
What we found across the portable power stations we compare, plus the checked facts behind each finding.
Only 6 of the 50 models checked meet every need here: “I need power at campsites and on weekends away”, “I want backup power for the essentials at home”, and “Solar will be a real part of how I recharge”.
6 models fit, out of 50 checkedOUPES Mega 1 lists 2,000 W for continuous AC output rating, 11% more than the 1,800 W on Anker SOLIX C1000.
How we countedThe count uses each product's current fit ratings for “I need power at campsites and on weekends away”, “I want backup power for the essentials at home”, and “Solar will be a real part of how I recharge”. A need with no documented match is not counted.
How we calculatedFigures are the continuous output rating. Surge numbers and boost modes that lower voltage do not count. For context, 47 of 50 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| OUPES Mega 1 |
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| Anker SOLIX C1000 |
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