Anker SOLIX 555 and EcoFlow DELTA 2 look similar on paper because both are 1024Wh LiFePO4 power stations. The real difference is what each one can comfortably handle after you compare output, recharging speed, solar input, and expansion options.
Quick Answer
Bottom Line First
- Choose EcoFlow DELTA 2 if you want stronger AC output, much faster charging, better solar input, app control, and future battery expansion.
- Choose Anker SOLIX 555 if your power needs are lighter, you prefer a simpler setup, and the price difference is large enough to matter.
- Do not choose based on 1024Wh capacity alone. These two are similar in battery size, but very different in real-world capability.
Specs That Matter
| Feature | Anker SOLIX 555 | EcoFlow DELTA 2 |
|---|---|---|
| Battery capacity | 1024Wh | 1024Wh |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3000 cycles to 80%+ | 3000 cycles to 80%+ |
| AC output | 1000W | 1800W |
| AC recharging speed | About 4.1 hours to 100% | About 50 min to 80%, 80 min to 100% |
| Solar input | Up to 200W | Up to 500W |
| Expansion | No major expansion path | Supports extra battery expansion |
| Connectivity | Hardware-focused setup | Wi-Fi and Bluetooth app control |
| Weight | About 13.1kg | About 12kg |
Real Differences
1 Output: 1000W vs 1800W
Both models have 1024Wh capacity, but output decides what you can actually run. Anker SOLIX 555 is a 1000W-class power station, which is enough for phones, laptops, routers, lights, cameras, and many small appliances.
The EcoFlow DELTA 2 offers 1800W AC output, which gives it more room for heavier appliances, mixed home-backup use, and running multiple devices at the same time.
2 Charging Speed: DELTA 2 Is Much Faster
Anker SOLIX 555 takes about 4.1 hours to fully recharge with the AC adapter and a 100W USB-C charger. EcoFlow DELTA 2 can reach 80% in about 50 minutes and 100% in about 80 minutes under official test conditions.
This may not matter for overnight charging, but it matters if you need the power station ready again quickly.
3 Solar Input: 200W vs 500W
If solar charging matters, EcoFlow DELTA 2 is the stronger platform. Anker SOLIX 555 supports up to 200W DC input, while DELTA 2 supports up to 500W solar input.
That means DELTA 2 can make better use of portable panels and recover faster off-grid. For occasional camping, Anker SOLIX 555 may still be fine. For solar as a serious part of your setup, DELTA 2 makes more sense.
4 Expansion: DELTA 2 Has the Better Upgrade Path
Anker SOLIX 555 is a simpler standalone 1kWh power station. It works best if you do not plan to expand your setup later.
EcoFlow DELTA 2 is more flexible because it supports extra battery expansion. If your power needs may grow later, DELTA 2 gives you a better path forward.
5 Price: Anker SOLIX 555 Wins Only When the Discount Is Strong
Anker SOLIX 555 makes the most sense when it is meaningfully cheaper than DELTA 2.
If the price gap is small, DELTA 2 usually gives you more useful capability for the money because it offers stronger output, faster charging, better solar input, app control, and expansion support.
Best Use Cases
Use these scenarios to match each model with your actual power needs.
SOLIX 555 Makes More Sense For…
- Light home backup, such as phones, laptops, routers, lights, cameras, and small devices.
- Weekend camping or simple outdoor power needs.
- Users who usually recharge overnight and do not need fast turnaround.
- Buyers who prefer a simpler hardware-focused setup.
- Price-sensitive buying, but only when Anker SOLIX 555 is much cheaper than DELTA 2.
EcoFlow DELTA 2 Makes More Sense For…
- Mixed home backup with more appliances or multiple devices.
- Users who want much faster recharging.
- Solar-focused camping, RV use, or off-grid recovery.
- Buyers who want app control and a more flexible setup.
- Users who may add extra battery capacity later.
Common Buying Traps to Avoid
- Do not buy Anker SOLIX 555 if you need to run high-wattage appliances regularly. Its 1000W AC output is better for lighter loads.
- Do not buy EcoFlow DELTA 2 only for phone, laptop, router, or camera backup if it costs much more than Anker SOLIX 555.
- Do not assume either model can run every fridge. Check the fridge’s running wattage and surge or startup wattage before buying.
- Do not compare only 1024Wh capacity. Output, recharging speed, solar input, app control, and expansion can matter more in daily use.
How to Choose
Simple Decision Rule
- If the Anker SOLIX 555 is only slightly cheaper, choose EcoFlow DELTA 2.
- If the Anker SOLIX 555 is heavily discounted and your loads are light, choose Anker SOLIX 555.
- If you want one power station for more situations, choose EcoFlow DELTA 2.
Common Questions
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