Head-to-head comparison · Portable Power Stations
EcoFlow DELTA 3 Plus vs DELTA 2
Same capacity, same 1,800 W of AC output. The DELTA 3 Plus is the newer design, with longer-rated cells, double the solar input and faster USB-C.
By Watt Versus Editorial· Updated
This page was drafted with AI assistance from manufacturers' specs and manuals, and is checked by our editor.
Why the EcoFlow DELTA 3 Plus Portable Power Station wins
The DELTA 3 Plus improves on the DELTA 2 in every row that EcoFlow publishes for both, with only a small weight penalty.
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EcoFlow DELTA 3 Plus Portable Power Station
A 1,024 Wh LiFePO4 station with 1,800 W of AC output, a 56-minute wall recharge, 1,000 W of solar input and room to grow to 5 kWh.
EcoFlow DELTA 2 Portable Power Station
A 1,024 Wh LiFePO4 power station with 1,800 W of AC output that can grow to about 3 kWh with an extra battery.
Side-by-side
Specs compared
| Specification | EcoFlow DELTA 3 Plus Portable Power StationOur pick | EcoFlow DELTA 2 Portable Power Station |
|---|---|---|
| Editorial score | Editorial score:8.8/10 | Editorial score:8.0/10 |
| Best for | Best 1 kWh Overall | — |
| Capacity | 1,024 Wh | 1,024 Wh |
| Battery chemistry | LiFePO4 (LFP) | LiFePO4 (LFP) |
| Rated cycle life | 4,000 cycles to 80% capacity | 3,000+ cycles to 80% capacity |
| AC output | 1,800 W (2,200 W with X-Boost) | 1,800 W |
| Peak output | 3,600 W surge | 2,700 W surge |
| AC outlets | 6 (US model) | — |
| USB-C output | 2 x 140 W | — |
| Wall recharge | 0-100% in 56 minutes (1,500 W AC input) | 0-80% in 50 minutes, full in 80 minutes (EcoFlow lab figures) |
| Max solar input | 1,000 W (2 x 500 W MPPT) | 500 W |
| Expandable to | About 5 kWh with DELTA 3, DELTA 2 or DELTA 2 Max extra batteries | About 3 kWh with a DELTA 2 or DELTA 2 Max extra battery |
| Backup switchover | Under 10 ms | — |
| Weight | 27.6 lb (12.5 kg) | 27 lb (12 kg) |
| Dimensions | 15.7 x 8 x 11.2 in | 15.7 x 8.3 x 11 in |
| Warranty | 5 years | 5 years |
| Where to buy | Check Latest Price on Amazon (paid link) | Check Latest Price on Amazon (paid link) |
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At a glance
Key differences
- 1Cycle life: 4,000 cycles to 80% for the DELTA 3 Plus, 3,000 for the DELTA 2.
- 2Solar input: 1,000 W against 500 W.
- 3USB-C: two 140 W ports on the DELTA 3 Plus.
- 4Expansion: about 5 kWh for the DELTA 3 Plus, about 3 kWh for the DELTA 2.
- 5Backup switchover: under 10 ms on the DELTA 3 Plus; EcoFlow gives no figure for the DELTA 2.
Product by product
Pros and cons
EcoFlow DELTA 3 Plus Portable Power Station
The most complete 1 kWh station we cover: fast to recharge, strong on solar, and expandable when you need more. Pick it unless weight or a lower budget matters more.
Pros
- 4,000-cycle LFP rating, a step up from the DELTA 2's 3,000
- Full recharge from a wall outlet in 56 minutes, by EcoFlow's figures
- 1,000 W of solar input, double the DELTA 2
- Two 140 W USB-C ports charge most laptops at full speed
Cons
- At 27.6 lb it is heavier than the Jackery Explorer 1000 v2 and Anker SOLIX C1000 Gen 2
- Reaching 5 kWh needs extra batteries, sold separately
- X-Boost runs high-wattage heaters and kettles at reduced power, not at their full rating
EcoFlow DELTA 2 Portable Power Station
The DELTA 2 is still a capable 1 kWh station, and the option to add a battery later is its best feature. Buy it for that; if you want the longest-lasting cells in this size, look at newer models first.
Pros
- Charges from a wall outlet to 80% in 50 minutes, by EcoFlow's figures
- Capacity can roughly triple with one extra battery
- LiFePO4 cells rated for 3,000+ cycles, backed by a 5-year warranty
- X-Boost mode lets it run some appliances rated up to 2,200 W at reduced power
Cons
- An older design: EcoFlow now sells the DELTA 3, which it rates for 4,000 cycles and a faster recharge
- Solar input tops out at 500 W, below the 600 W the Anker SOLIX C1000 accepts
- EcoFlow describes the backup switchover only as "almost instant" and gives no figure in milliseconds
Choose the EcoFlow DELTA 3 Plus if
- You are buying new today: it is the current model, with better-rated cells and charging.
- You use solar, or might add a second battery later.
- You want to use it as a UPS for a computer or network gear.
Choose the EcoFlow DELTA 2 if
- You already own DELTA 2 or DELTA 2 Max extra batteries and want a matching unit.
- You find it at a clearly lower price and do not need more than 500 W of solar.
What we could not confirm
EcoFlow does not publish a switchover time for the DELTA 2; it describes the backup function only as almost instant.
Frequently asked questions
- Is the DELTA 3 Plus worth it over the DELTA 2?
- If the price gap is small, yes: it adds 1,000 more rated cycles, double the solar input, faster USB-C and a published sub-10 ms switchover.
- Can the DELTA 3 Plus use DELTA 2 extra batteries?
- Yes. EcoFlow lists the DELTA 2 and DELTA 2 Max extra batteries among those that work with the DELTA 3 Plus.
- Which is lighter?
- The DELTA 2, at 27 lb against 27.6 lb for the DELTA 3 Plus: a negligible difference.
More comparisons
VS comparison
EcoFlow DELTA 3 Plus Portable Power Station vs Anker SOLIX C1000 Gen 2 Portable Power Station
Both store about 1 kWh in LFP cells rated for 4,000 cycles. The Anker puts out more power and charges faster from the wall; the EcoFlow takes twice the solar and can grow to 5 kWh.
Updated October 15, 2026
VS comparison
EcoFlow DELTA 2 Portable Power Station vs Anker SOLIX C1000 Portable Power Station
Two of the most compared 1 kWh stations: same 1,800 W of output and LFP cells rated for 3,000 cycles. They differ in charging, solar and how far each can expand.
Updated October 15, 2026
VS comparison
Anker SOLIX C1000 Gen 2 Portable Power Station vs Anker SOLIX C1000 Portable Power Station
The Gen 2 is lighter, more powerful and longer-rated. The original C1000 keeps one advantage: it can take an expansion battery.
Updated October 15, 2026