The catch
Anker SOLIX C1000
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.
Side by side
Anker SOLIX C1000 vs EcoFlow DELTA 3: C1000 starts with slightly more energy, and DELTA shortens transfer time
Quick verdict
A shorter transfer specification points to the DELTA 3. The C1000 offers a little more capacity and solar intake, and expansion works with both.
Before you buy
Why, and what it costs you
Using a common load makes reserves easier to compare
Modeled at a steady 300W load, Anker SOLIX C1000 comes to about 2.8 hours and EcoFlow DELTA 3 to 2.7 hours.
Where this comes from
Hours = nominal Wh × 0.8 / 300W, using inputs of 1056Wh and 1024Wh. The 80% factor allows for unusable energy and conversion losses and is shared for planning. It is not a measured efficiency. Idle draw, temperature and the real load will change runtime.
The catch
EcoFlow DELTA 3
A single 500W solar input can’t take advantage of the 1000W two-input setup on the Plus model.
Anker SOLIX C1000
- Why pick it
- Take in up to 600W of compatible solar
- Hold a little more energy in the base battery
- 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.
EcoFlow DELTA 3
- Why pick it
- Put a 10ms transfer limit first
- A slightly lighter cabinet appeals to you
- The catch
- A single 500W solar input can’t take advantage of the 1000W two-input setup on the Plus model.
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What this page compares
The DELTA 3 is the choice for the shorter transfer specification. The C1000 has a little more capacity and solar intake, and each supports expansion.
The energy gap is minor
Which one fits
Pick the situations that sound like you
Take a solar input from just above 500W up to 600W
DELTA 3 accepts 500W, while C1000 accepts up to 600W of compatible solar input. Voltage and current limits have to be satisfied by the panels as well.
- Anker SOLIX C1000
- Better fit
- EcoFlow DELTA 3
- Not suitable
Put a 10ms transfer limit first
C1000 has a 20ms transfer limit, while DELTA 3 publishes 10ms. Test the connected equipment, since a transfer specification alone can’t guarantee uninterrupted operation.
- Anker SOLIX C1000
- Not suitable
- EcoFlow DELTA 3
- Better fit
The battery has to carry a steady 300W load
In the shared planning case, Anker SOLIX C1000 reaches 2.8 hours and EcoFlow DELTA 3 reaches 2.7. Measure the actual wattage before choosing a required overnight reserve.
- Anker SOLIX C1000
- Depends
- EcoFlow DELTA 3
- Depends
I want solar to refill the battery
Anker SOLIX C1000 allows 600W of maximum input and EcoFlow DELTA 3 allows 500W. Compare your actual panel strings with the voltage and current limits as well as this total.
- Anker SOLIX C1000
- Depends
- EcoFlow DELTA 3
- Depends
In practice
Differences you will notice
Using a common load makes reserves easier to compare
Modeled at a steady 300W load, Anker SOLIX C1000 comes to about 2.8 hours and EcoFlow DELTA 3 to 2.7 hours.
How we worked this out
Hours = nominal Wh × 0.8 / 300W, using inputs of 1056Wh and 1024Wh. The 80% factor allows for unusable energy and conversion losses and is shared for planning. It is not a measured efficiency. Idle draw, temperature and the real load will change runtime.
The return on every pound you carry
EcoFlow DELTA 3 stores 37.1 nominal watt-hours per pound, and Anker SOLIX C1000 stores about 37.1.
How we worked this out
Nominal energy over published weight gives 1056 / 28.44 and 1024 / 27.6. It is a comparison of stored energy per lifting weight and not of measured efficiency or handle comfort.
A very small energy step comes with a 100W solar step
Compared with DELTA 3, C1000 accepts 20% more maximum solar input yet stores only about 3% more nominal energy.
How we worked this out
Solar: (600 / 500 - 1) × 100 = 20%. Energy: (1056 / 1024 - 1) × 100 = 3.1%.
Option A
Anker SOLIX, A1761
C1000
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.
- Best for
- Compact backup that leaves room to add capacity
Facts we checked
- 1,800W rated AC output from a 1,056Wh LFP battery
- Six AC outlets and 100W USB-C, at about 28.44 lb
- A 20ms transfer mode, up to 600W solar and support for a matching 1,056Wh expansion battery
Option B
EcoFlow, DELTA 3
DELTA 3
This expandable DELTA 3 is for buyers who can do without the extra solar input of the Plus model. Battery and inverter are the same size, so the simpler charging setup may be all you need.
- Best for
- Camping loads and home essentials paired with a moderate solar array.
Facts we checked
- 1800W rated AC output from a 1024Wh battery.
- About 27.6 lb.
- A single 500W solar input, with a range of 11V to 60V.
- Six AC outlets and two 100W USB-C ports.
- Support for compatible DELTA-series expansion batteries.
- 1500W AC charging and under-10ms transfer.
Spec by spec
Where they really differ
| Spec | Anker SOLIX C1000 | EcoFlow DELTA 3 | In practice |
|---|---|---|---|
| Nominal battery energy | 1056 Wh | 1024 Wh | The starting runtime budget comes from stored energy. |
| Continuous AC output | 1800 W | 1800 W | Load screening uses this sustained rating, which is separate from surge and boost modes. |
| Lifting weight | 28.44 lb | 27.6 lb | Flat ground is where wheels help. A trunk, step or shelf still takes a lift. |
| Maximum solar input | 600 W | 500 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 | 10 ms | Check the exact device being connected. Even a short transfer specification can’t guarantee that every load runs without interruption. |
Trade-offs
What each pick costs you
With Anker SOLIX C1000
- To reach the 600W solar ceiling you need the right panel voltage. The input-current limit is 10A below 32V and rises to 12.5A from 32V to 60V.
With EcoFlow DELTA 3
- Each USB-C port tops out at 100W instead of 140W.
Decision guide
How to decide
Pick the DELTA 3 for the shorter transfer specification. Pick the C1000 for a little more capacity and solar intake, since both support expansion.
The energy gap is minor
The C1000 has 32Wh more, worth roughly five modeled minutes at 300W. Capacity is close here, and this is not a full runtime upgrade.
Accessories you already own can settle the choice
Each expands only within its own compatible system. If you already own a supported battery, compare the complete system cost before replacing the main unit.
Keep UPS timing apart from marketing labels
The DELTA 3 lists 10ms and the C1000 lists 20ms. Before you rely on either for work that can’t tolerate a restart, test the exact computer or network setup.
What this page can’t tell you
- Published capacity underlies these runtime figures. They are planning estimates. No hands-on discharge tests were run.
- Connecting a station to home wiring requires approved transfer equipment and qualified installation. A battery station is not guaranteed to provide medical continuity.
By the numbers
What the data shows
What we found across the portable power stations we compare, plus the checked facts behind each finding.
How many fit
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 checkedShow the facts and the math
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.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Anker SOLIX C1000 |
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| EcoFlow DELTA 3 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Anker SOLIX C1000
Take in up to 600W of compatible solar
See price & reviews on AmazonEcoFlow DELTA 3
Put a 10ms transfer limit first
See price & reviews on AmazonEach link opens in a new tab.
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