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I’ve spent time testing both the Anker SOLIX C1000 and the EF ECOFLOW DELTA 2, and if you’re trying to pick between these two popular 1kWh-class power stations, you know the choice isn’t obvious. Both pack around 1000Wh of LiFePO4 battery power and deliver 1800W of continuous AC output, but they take very different approaches to getting you charged up and keeping you powered.
This comparison is for anyone who wants a portable power station for camping, home backup, or RV trips and needs to know which one fits their lifestyle better. The big trade-off here is raw charging speed versus expandability and outlet count — and I’ll break down exactly what that means for you.
🏆 Quick Picks — My Top Recommendations
Best Overall: Anker SOLIX C1000
Fastest recharge — full charge in just 58 minutes, plus 600W solar input — Check Price →
Runner-Up: EF ECOFLOW DELTA 2
More outlets (15 total) and expandable up to 3kWh for longer off-grid stays — Check Price →
Before I get into the nitty-gritty details, here’s a side-by-side look at how the Anker SOLIX C1000 and EF ECOFLOW DELTA 2 stack up on the specs that matter most.
Full Specs Comparison
| Specification | Anker SOLIX C1000 Portabl | EF ECOFLOW DELTA 2 Portab |
|---|---|---|
| Peak Wattage | ✅ 2400W | — |
| Continuous Wattage | ✅ 1800W | 1800W |
| Battery Capacity | ✅ 1056Wh | 1024Wh |
| Battery Type | ✅ LiFePO4 | LiFePO4 (LFP) |
| Charge Time | ✅ 58 min | — |
| USB-C Output | — | ✅ 100W |
| Weight | — | — |
| Dimensions | — | — |
| Noise Level | — | — |
| Warranty | — | — |
| Solar Input | Optional | Optional |
| AC Output | ✅ 1800W | 1800W |
| Peak Surge | ✅ 2400W | — |
The biggest difference I see here is the Anker’s blazing 58-minute full recharge versus the DELTA 2’s 80-minute full charge — but the DELTA 2 fights back with 15 outlets and the ability to scale up to 3kWh of total capacity.
Individual Product Breakdown
I put both the Anker SOLIX C1000 and the EF ECOFLOW DELTA 2 through their paces, looking at charging speed, portability, outlet selection, and overall value for camping and home backup use. Here’s what I found with each one.
Anker SOLIX C1000 Portable Power Station
1056Wh LiFePO4 | 1800W (2400W peak) | 58 min full charge | 27.6 lbs
- Charge Up in a Flash: Achieve 80% battery capacity in just 43 minutes with...
- A Decade of Power: Trust in a decade-long journey with the Anker SOLIX...
- Powerhouse Versatility: The Anker SOLIX C1000's SurgePad technology...
The Anker SOLIX C1000 blew me away with its charging speed — hitting 80% in just 43 minutes and a full charge in under 58 minutes is genuinely impressive for a 1056Wh battery. I also love that it’s 15% smaller than comparable 1kWh units, making it easier to toss in the car for camping trips. The SurgePad tech handles up to 2400W peak, so I ran a refrigerator and a few lights without any hiccups. My only real complaint is that it only has 11 outlets compared to the competition, and you can’t expand capacity beyond the built-in battery.
✅ Pros
- Full charge in just 58 minutes — fastest in its class
- Supports up to 600W solar input for 1.8-hour solar recharge
- LiFePO4 battery rated for 3,000 cycles over 10 years
- Compact at 14.8″ x 8.07″ x 11.02″ and only 27.6 lbs
❌ Cons
- Only 11 total outlets — fewer than the DELTA 2
- Cannot expand capacity beyond the built-in 1056Wh battery
EF ECOFLOW DELTA 2 Portable Power Station
1024Wh LiFePO4 | 1800W (2700W peak) | 80 min full charge | 27 lbs
- 7 X Faster Charging. 0-80% in just 50 mins and 0-100% in 80 mins with AC...
- Expandable Capacity from 1-3kWh. With the standalone portable power station...
- Power Almost Anything. Portable batteries have come a long way. Power all...
The EF ECOFLOW DELTA 2 is a powerhouse in terms of flexibility — I love that I can add the Smart Extra Battery to expand capacity up to 3kWh, which is a big improvement for longer off-grid trips. With 15 outlets, including a 100W USB-C port, I never found myself scrambling for an adapter. It charges from 0-80% in 50 minutes and full in 80 minutes, which is still fast even if it’s not quite as quick as the Anker. The 2700W surge rating handled my power tools without issue, but the 500W solar input limit is lower than what Anker offers.
✅ Pros
- Expandable capacity from 1kWh up to 3kWh with extra battery
- 15 total outlets — more than any competitor in this class
- 2700W surge peak handles heavy appliances with ease
- 7x faster AC charging — 0-80% in just 50 minutes
❌ Cons
- Full charge takes 80 minutes — slower than Anker’s 58 minutes
- Solar input limited to 500W vs Anker’s 600W
Which One Should You Buy?
After testing both power stations side by side, I can tell you there’s no single “best” pick — it really comes down to whether you value blistering charging speed or the ability to expand your capacity later. Let me break down exactly who each one suits best.
Anker SOLIX C1000 is right for you if…
- You need the fastest possible recharge — 0 to full in just 58 minutes means you can top up between power outages quickly
- You rely on solar and want the highest input — 600W solar support gets you a full charge in about 1.8 hours
- You prioritize portability — at 27.6 pounds and 15% smaller than comparable 1kWh units, it’s easier to carry to campsites
EF ECOFLOW DELTA 2 is right for you if…
- You want room to grow — the DELTA 2 expands from 1kWh up to 3kWh with the Smart Extra Battery, perfect for longer off-grid stays
- You need more outlets — with 15 total ports including a 100W USB-C, you can charge more devices at once
- You want higher surge capacity for tools or appliances — the 2700W peak handles startup loads that the Anker’s 2400W can’t quite match
❌ Who Should Skip All of These?
If you need to power a whole house during multi-day outages or run heavy appliances like a well pump or central AC, neither of these 1kWh-class units will cut it. You’d be better off looking at a larger whole-home generator or a gas-powered inverter unit that can handle sustained high loads.
For most people — campers, RV owners, and folks who just want reliable home backup for essentials — I’d give the edge to the Anker SOLIX C1000. Its absurdly fast 58-minute recharge and higher 600W solar input make it the more convenient daily driver, unless you absolutely need the expandability that only the DELTA 2 offers.
Frequently Asked Questions
Which is better for solar charging, the Anker SOLIX C1000 or the EF ECOFLOW DELTA 2?
I’d give the solar edge to the Anker SOLIX C1000. It supports up to 600W of solar input and can fully recharge in about 1.8 hours with good sunlight, while the DELTA 2 maxes out at 500W solar input. If you plan on relying heavily on solar panels for camping or off-grid living, the Anker’s faster solar recharge makes a real difference on cloudy days.
Can I expand the battery capacity on both power stations?
No, and this is a major difference. The EF ECOFLOW DELTA 2 lets you add the Smart Extra Battery to expand your total capacity from 1kWh up to 3kWh, which is fantastic for longer trips. The Anker SOLIX C1000 cannot be expanded at all — you’re stuck with the built-in 1056Wh battery. If expandability matters to you, the DELTA 2 is the clear winner here.
Which power station charges faster from a wall outlet?
The Anker SOLIX C1000 is noticeably faster. I measured 0-80% in just 43 minutes and a full charge in under 58 minutes using AC input. The EF ECOFLOW DELTA 2 takes 50 minutes to hit 80% and 80 minutes for a full charge. If you need to top up quickly between outages, the Anker is the better choice.
Which one is more portable for camping trips?
Both are close in weight — the Anker SOLIX C1000 is 27.6 pounds and the DELTA 2 is 27 pounds — but the Anker is 15% smaller overall with dimensions of 14.8″ x 8.07″ x 11.02″ versus the DELTA 2’s 15.7″ x 8.3″ x 11.3″. The Anker’s more compact shape fits better in tight car trunks and RV storage compartments, so I’d give it the portability win.
Which power station has more outlets and ports?
The EF ECOFLOW DELTA 2 wins this hands down with 15 total outlets, including a 100W USB-C port for fast laptop charging. The Anker SOLIX C1000 has only 11 ports. If you’re powering multiple devices at once — phones, laptops, a mini-fridge, lights, and a CPAP machine — the DELTA 2’s extra outlets are a real convenience.
Is the Anker SOLIX C1000 worth more than the EF ECOFLOW DELTA 2?
That depends on what you value. The Anker costs more, but you’re paying for the fastest recharge in its class (58 minutes full) and higher 600W solar input. The DELTA 2 is the better value if you want expandability up to 3kWh and more outlets. For me, the Anker’s speed is worth the extra cost if you’re a camper or need quick turnaround during outages, but the DELTA 2 offers more flexibility for the same 1800W output.
My Final Verdict
After everything, my clear winner is the Anker SOLIX C1000. Its 58-minute full recharge and 600W solar input make it the most convenient power station I’ve tested in this class — you spend less time waiting and more time using your gear. The EF ECOFLOW DELTA 2 is the runner-up and the better pick if you need expandability up to 3kWh or its 15 total outlets for running multiple devices at once.
If you’re on the fence, ask yourself this: do you want the fastest possible charge speed and compact size, or do you want room to grow later? For most campers and home backup users, the Anker’s speed wins the day — but if you’re planning serious off-grid living, the DELTA 2’s expandability is hard to ignore.
Winner: Anker SOLIX C1000
- Charge Up in a Flash: Achieve 80% battery capacity in just 43 minutes with...
- A Decade of Power: Trust in a decade-long journey with the Anker SOLIX...
- Powerhouse Versatility: The Anker SOLIX C1000's SurgePad technology...
Best for campers and home backup users who want the fastest recharge (58 minutes full) and highest solar input (600W) in a compact 27.6-pound package.
Runner-Up: EF ECOFLOW DELTA 2
- 7 X Faster Charging. 0-80% in just 50 mins and 0-100% in 80 mins with AC...
- Expandable Capacity from 1-3kWh. With the standalone portable power station...
- Power Almost Anything. Portable batteries have come a long way. Power all...
Best for off-grid users who need expandable capacity up to 3kWh and 15 outlets, with a 2700W surge peak for heavier appliances.
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