Anker SOLIX S2000 vs. EcoFlow DELTA 2 Max
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Top picks at a glance
Lighter 2 kWh boxAnker SOLIX S2000Check price on Amazon
Expandable 2 kWh boxEcoFlow DELTA 2 MaxCheck price on Amazon
The Anker SOLIX S2000 is the lighter of the two 2 kWh stations here, at 35.7 lb. The EcoFlow DELTA 2 Max puts out 2,400 W and expands to 6,144 Wh. The Anker fills fully in about 2.3 hours.
This guide sizes the two stations from the makers’ published specs, current in November 2026. PowerPicked Editorial has not run tests on the two stations here.
Stored energy counts in watt-hours, written Wh. Power is tallied in watts. A watt is written W. AC output is the plug-in power for the site. Solar input caps how much panel power comes in from panels.
Anker SOLIX S2000
- Capacity
- 2,010 Wh
- AC output
- 1,500 W
- Weight
- 35.7 lb
Who it's for: Home backup buyers who want 2 kWh for a fridge and essentials in a box one person can carry.
Strengths
- Rated 6,000 cycles to 80% and 10,000 to 60%
- 10 ms UPS switchover
- Listed at 30 dB
Weaknesses
- Not expandable
- No 12V car port
How long does the S2000 run?
Count on 85% of the listed capacity for the runtime numbers below, assumed. Usable energy is 1,708.5 Wh at 85% of the listed 2,010 Wh. A 100 W load draws for about 17.1 hours on that energy. 2,010 Wh over 35.7 lb works out to about 56.3 Wh per pound.
It puts out 1,500 W. UPS switchover runs in 10 ms. It keeps 80% of its capacity for 6,000 cycles, and 60% for 10,000 cycles. AC input runs up to 1,600 W through the app, and a full charge takes about 2.3 hours. It does not link extra batteries. Read the S2000 review.
EcoFlow DELTA 2 Max
- Capacity
- 2,048 Wh
- AC output
- 2,400 W
- Solar input
- 1,000 W
- Weight
- 50 lb
Who it's for: Home backup and RV owners who want about 2 kWh now and room to grow to 6 kWh with extra batteries.
Strengths
- Expands to 6,144 Wh with two extra batteries
- 1,000 W solar input across two ports
- 2,400 W output, 3,400 W with X-Boost
Weaknesses
- Heavy at 50 lb
- UPS switchover time isn't listed
How many hours does the DELTA 2 Max last?
Count on 85% of the listed capacity for the runtime figures below, assumed. Take 85% of 2,048 Wh and the usable figure is 1,740.8 Wh. A 100 W load draws for about 17.4 hours off that amount. 41.0 Wh per pound comes from 2,048 Wh over 50 lb.
It gives 2,400 W, with a 4,800 W surge. X-Boost lifts it to 3,400 W. It takes 1,000 W of solar with two ports. Extra batteries take it from 2,048 Wh to 6,144 Wh. Read the DELTA 2 Max review.
How do the two compare?
| S2000 | DELTA 2 Max | |
|---|---|---|
| Capacity | 2,010 Wh | 2,048 Wh |
| AC output | 1,500 W | 2,400 W |
| Solar input | not listed | 1,000 W |
| Weight | 35.7 lb | 50 lb |
| Expansion | none | to 6,144 Wh |
How to choose
Match the AC output to your gear first. Solar input sets how fast the box refills from panels. Weight sets how easily it moves.
FAQ
Which one has the stronger output?
The DELTA 2 Max puts out 2,400 W. The S2000 puts out 1,500 W.
Which one holds the most?
The DELTA 2 Max holds 2,048 Wh. The S2000 holds 2,010 Wh.
Which one is the lighter one?
The S2000 weighs 35.7 lb. The DELTA 2 Max weighs 50 lb.
Can either expand?
The DELTA 2 Max reaches 6,144 Wh with two extra batteries. The S2000 does not link extra batteries.
Sources
- Anker: SOLIX S2000 product page
- EcoFlow: DELTA 2 Max product page
