Main trade-off
Anker SOLIX C2000 Gen 2
The 58-minute full-charge claim combines AC and solar. US AC-only charging is listed at 88 minutes.
Head-to-head
Choose C2000 Gen 2 for easier lifting and faster transfer. DELTA 2 Max suits a larger solar-input plan with the same base battery capacity.
Before you choose
For a steady 300W load, Anker SOLIX C2000 Gen 2 models to about 5.5 hours and EcoFlow DELTA 2 Max to 5.5 hours.
What this is based on
Hours = nominal Wh × 0.8 / 300W. Inputs 2048Wh and 2048Wh. The 80% factor is a shared planning allowance for unusable energy and conversion losses, not a measured efficiency. Idle draw, temperature and the real load change runtime.
Main trade-off
The 58-minute full-charge claim combines AC and solar. US AC-only charging is listed at 88 minutes.
Main trade-off
At about 50 pounds, stairs and repeated lifting matter more than the carry handles suggest. The unit supplies 120V, not native split-phase 240V.


Choose C2000 Gen 2 for easier lifting and faster transfer. DELTA 2 Max suits a larger solar-input plan with the same base battery capacity.
The base runtime is a tie
Winner by situation
Both have 2,048Wh, but C2000 Gen 2 weighs 41.7 lb against 50 lb. It saves 8.3 lb each time the station leaves the shelf without reducing the nominal battery capacity.
DELTA 2 Max accepts up to 1,000W of compatible solar input. C2000 Gen 2 stops at 800W. Check voltage, current and individual input limits before choosing the panels.
The shared planning case gives 5.5 hours from Anker SOLIX C2000 Gen 2 and 5.5 from EcoFlow DELTA 2 Max. Measure actual wattage before choosing a required overnight reserve.
The maximum input is 800W for Anker SOLIX C2000 Gen 2 and 1000W for EcoFlow DELTA 2 Max. Compare your actual panel strings with the voltage and current limits as well as this total.
What matters in practice
For a steady 300W load, Anker SOLIX C2000 Gen 2 models to about 5.5 hours and EcoFlow DELTA 2 Max to 5.5 hours.
Hours = nominal Wh × 0.8 / 300W. Inputs 2048Wh and 2048Wh. The 80% factor is a shared planning allowance for unusable energy and conversion losses, not a measured efficiency. Idle draw, temperature and the real load change runtime.
Anker SOLIX C2000 Gen 2 stores about 49.1 nominal watt-hours per pound, compared with 41 for EcoFlow DELTA 2 Max.
Nominal energy divided by published weight: 2048 / 41.7 and 2048 / 50. This compares stored energy per lifting weight, not measured efficiency or handle comfort.
C2000 Gen 2 cuts the carry weight by about 17% while retaining the same 2,048Wh and 2,400W baseline as DELTA 2 Max.
50 - 41.7 = 8.3 lb. 8.3 / 50 × 100 = 16.6%. Capacity and continuous output are equal.

Anker, A1783
A lighter 2kWh station for RV and home use, with expansion left open. Two 140W USB-C ports are handy for modern laptops, while its low height can make under-bed storage easier.

EcoFlow, EFD350
An expandable 2,048Wh station with 2,400W output and two independent 500W solar inputs. Best suited to equipment that can stay close to its parking spot.
Meaningful differences
| What changes | Anker SOLIX C2000 Gen 2 | EcoFlow DELTA 2 Max | Why it matters |
|---|---|---|---|
| Nominal battery energy | 2048 Wh | 2048 Wh | Stored energy determines the starting runtime budget. |
| Continuous AC output | 2400 W | 2400 W | This is the sustained rating used for load screening, separate from surge and boost modes. |
| Lifting weight | 41.7 lb | 50 lb | Wheels help on flat ground. A trunk, step or shelf still requires a lift. |
| Maximum solar input | 800 W | 1000 W | The panel voltage, current and per-port limits must also fit. |
| Dedicated battery expansion | Supported with compatible equipment | Supported with compatible equipment | Charging from an external source is different from integrated battery expansion. |
| Published transfer limit | 10 ms | 30 ms | Verify the exact connected device. A short transfer specification does not guarantee uninterrupted operation for every load. |
What you give up
What matters in practice
Both store 2,048Wh and deliver 2,400W continuously. A higher price or newer model name does not produce longer modeled runtime from the base battery.
C2000 Gen 2 weighs 41.7 pounds against 50 for DELTA 2 Max. The difference matters every time the station leaves a garage shelf.
The respective maximum solar totals are 800W and 1,000W. That extra 200W matters only if the planned panels and input layout can actually deliver it.
What the facts say
Useful conclusions from the current portable power stations comparison, followed by the checked facts used to reach them.
Only 6 of 50 models checked match every need here: “I want power for campsites and weekends away”, “I need backup for household essentials”, and “Solar is a real part of my recharge plan”.
6 matching models from 50 checkedMatch countThe count uses the current product-to-need assignments for “I want power for campsites and weekends away”, “I need backup for household essentials”, and “Solar is a real part of my recharge plan”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Anker SOLIX C2000 Gen 2 |
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| EcoFlow DELTA 2 Max |
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Ready to choose?
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Move a two-kilowatt-hour station yourself
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Use more than 800W of compatible solar
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