EcoFlow DELTA 3 Plus vs Anker SOLIX C1000: Which 1kWh Station Wins?

EcoFlow DELTA 3 Plus vs Anker SOLIX C1000: Which 1kWh Station Wins?

The 1kWh portable power station segment is one of the most competitive in the market, and two products consistently rise to the top of buyer shortlists: the EcoFlow DELTA 3 Plus and the Anker SOLIX C1000. Both offer roughly the same battery capacity, both come from well-established brands, and both promise to keep your essentials running during outages or off-grid adventures. But the similarities end once you dig into the details. One charges at record-breaking speed and scales up to a full home battery system, while the other delivers outstanding value at a lower price point. Let’s break down exactly how they compare so you can pick the right station for your needs.

Head-to-Head Spec Comparison

Spec	EcoFlow DELTA 3 Plus	Anker SOLIX C1000
Capacity	1024Wh	1056Wh
AC Output	1800W (3600W surge)	1800W (2400W surge)
Battery Type	LFP (LiFePO4)	LFP (LiFePO4)
Cycle Life	4000+ cycles to 80%	3000+ cycles to 80%
AC Charging Speed	0-100% in 56 minutes	0-100% in 58 minutes
Solar Input	500W max	600W max
Expandable	Yes, up to 5kWh	Yes, up to 2kWh
UPS Mode	Yes (20ms switchover)	No
Weight	27.6 lbs	28.6 lbs
Price (MSRP)	$899	$699

Capacity

Both stations land squarely in the 1kWh class. The Anker SOLIX C1000 edges ahead with 1056Wh compared to the DELTA 3 Plus’s 1024Wh, but that 32Wh difference is negligible in real-world use. It might run a laptop for an extra 15 minutes, but it is not a deciding factor on its own.

Where the EcoFlow pulls far ahead is expandability. The DELTA 3 Plus can accept additional batteries to scale up to 5kWh of total storage, turning it from a portable station into a legitimate home backup system. The Anker SOLIX C1000 supports one expansion battery for a maximum of roughly 2kWh. If you anticipate needing more capacity in the future, the EcoFlow’s expansion ecosystem gives it a significant edge.

Output

On paper, the two stations share an 1800W continuous AC output rating. However, the EcoFlow DELTA 3 Plus boasts a 3600W surge capability, which gives it more headroom for starting motor-driven appliances like refrigerators or small power tools. The Anker’s 2400W surge is respectable but more limited in comparison. For most everyday devices this won’t matter, but if you plan to run anything with a high startup draw, the DELTA 3 Plus provides extra peace of mind.

The EcoFlow also features a UPS (uninterruptible power supply) mode with a 20ms switchover time. This means you can keep it plugged into the wall and connected to sensitive equipment like a desktop computer or networking gear, and it will seamlessly take over if the grid goes down. The Anker SOLIX C1000 does not offer this functionality, which is a notable gap for home backup users.

Charging Speed

Both stations charge remarkably fast for the 1kWh class. The EcoFlow DELTA 3 Plus reaches a full charge in approximately 56 minutes via wall outlet, while the Anker SOLIX C1000 is right behind at about 58 minutes. In practical terms, you won’t notice the difference.

For solar charging, the Anker takes a slight lead with 600W of maximum solar input versus 500W on the EcoFlow. If you’re running a large solar array, the C1000 can harness more of that power. That said, the difference only matters if you actually have panels capable of exceeding 500W of output, which is a fairly large setup for a portable station.

Portability

Neither of these stations qualifies as ultralight, but both are manageable for one person. The EcoFlow DELTA 3 Plus weighs 27.6 lbs, edging out the 28.6 lb Anker by a pound. Both feature integrated handles and compact rectangular form factors that fit easily in a car trunk or storage closet. The weight difference is trivial, and neither station will present a challenge for most adults to carry short distances.

Price

This is where the comparison gets interesting. The Anker SOLIX C1000 carries an MSRP of $699, while the EcoFlow DELTA 3 Plus comes in at $899. That $200 gap is significant, especially when the core capacity and charging speeds are so similar. The Anker represents one of the best values in the 1kWh class, making it an attractive choice for budget-conscious buyers who want reliable power without premium pricing.

However, the EcoFlow’s higher price buys you meaningful extras: deeper expandability, UPS mode, a higher surge rating, and a longer 4000-cycle battery life versus 3000 cycles. Over the long term, that extra longevity could offset the upfront cost difference.

Verdict

These are both excellent 1kWh power stations, but they serve slightly different buyer profiles.

Choose the EcoFlow DELTA 3 Plus if you want a future-proof system that can expand up to 5kWh, need UPS functionality for home backup, or value the longer 4000-cycle battery life. The extra $200 buys real features that matter for power users.

Choose the Anker SOLIX C1000 if you want the best value in the 1kWh class, don’t need UPS mode or extensive expandability, and prefer to save $200 upfront. It delivers nearly identical core performance at a more accessible price point.

Looking for the latest? The Anker SOLIX C1000 Gen 2 now offers 2,000W output, 49-minute charging, UPS mode, and 140W USB-C PD 3.1 — closing every gap with the DELTA 3 Plus. See our updated Gen 2 vs DELTA 3 Plus comparison.