Goal Zero Yeti 1500 vs. EcoFlow DELTA 3 Ultra Plus
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Top picks at a glance
Best cold 1.5 kWh boxGoal Zero Yeti 1500Check price on Amazon
Best 3,600 W home boxEcoFlow DELTA 3 Ultra PlusCheck price on Amazon
The Goal Zero Yeti 1500 holds 1,505 Wh with 2,000 W and a cold rating, while the EcoFlow DELTA 3 Ultra Plus holds 3,072 Wh with 3,600 W and room to grow. The Yeti suits cold trips at a lighter weight, while the Ultra Plus suits home backup with more output.
This guide weighs the Yeti 1500 and the Ultra Plus on the makers’ published specs, current in November 2026. PowerPicked Editorial has not tested the two stations here.
What do the numbers mean?
The unit that counts stored energy is the watt-hour, written Wh. A watt is the unit that counts power, written W. AC output is the plug-in power for the RV. Solar input sets the panel power limit.
Goal Zero Yeti 1500
Goal Zero Yeti 1500
- Capacity
- 1,505 Wh
- AC output
- 2,000 W
- Solar input
- 900 W
- Weight
- 52.75 lb
Who it's for: People who want a mid-size station for cold trips and can handle the weight.
Strengths
- Rated for use down to -4°F
- 900 W of solar input
- Rated to keep 80% capacity after 4,000 cycles
Weaknesses
- Heavy for its capacity at 52.75 lb
- Not compatible with expansion batteries
Runtime figures in this section take 85% of the listed capacity as the assumed share. From 1505 Wh times 0.85 comes the usable energy. A 100 W draw lasts about 12.8 hours on that energy. Each pound holds about 28.5 Wh: 1505 Wh over 52.75 lb.
A -4°F rating covers its use. Its solar input reaches 900 W. Cycles leave 80% of its capacity after 4,000 of them. It takes no expansion battery.
Read the Yeti 1500 review.
EcoFlow DELTA 3 Ultra Plus
EcoFlow DELTA 3 Ultra Plus
- Capacity
- 3,072 Wh
- AC output
- 3,600 W
- Solar input
- 1,600 W
- Weight
- 74.3 lb
Who it's for: Home backup buyers who want about 3 kWh and 3,600 W in one unit that can grow to 11 kWh.
Strengths
- 3,600 W output with a 7,200 W surge rating
- 1,600 W solar input
- Listed at 25 dB or less at 600 W
Weaknesses
- Heavy at about 74.3 lb
- Full 5-year warranty needs app registration
Runtime figures in this section rest on an assumed 85% of the listed capacity. Usable energy totals 2,611.2 Wh at 85% of the listed 3,072 Wh. A 100 W load runs about 26.1 hours on that energy. 41.3 Wh for each pound comes from 3,072 Wh over 74.3 lb.
It takes 1,600 W of solar input at most. With extra batteries, it grows from 3 kWh to 11 kWh. At 600 W, the maker lists noise of 25 dB or less. The UPS switch takes under 10 ms. USB-C ports give 140 W and 45 W.
Read the DELTA 3 Ultra Plus review.
How do they compare?
| Yeti 1500 | Ultra Plus | |
|---|---|---|
| Capacity | 1,505 Wh | 3,072 Wh |
| AC output | 2,000 W | 3,600 W |
| Solar input | 900 W | 1,600 W |
| Weight | 52.75 lb | 74.3 lb |
| UPS | not listed | under 10 ms |
How to choose
Start with the output your backup needs. Capacity sets the hours the station runs before a refill. Solar input sets the refill speed. A lighter box suits a buyer who lugs it far. Expansion suits a home that grows its bank.
FAQ
Which one has the most output?
The EcoFlow DELTA 3 Ultra Plus, with 3,600 W. The Goal Zero Yeti 1500 gives 2,000 W.
Which one has the bigger battery?
The EcoFlow DELTA 3 Ultra Plus, with 3,072 Wh. The Goal Zero Yeti 1500 holds 1505 Wh.
Which one takes in the most solar?
The EcoFlow DELTA 3 Ultra Plus, with 1,600 W. The Goal Zero Yeti 1500 takes 900 W.
Which one is lighter to haul?
The Goal Zero Yeti 1500, at 52.75 lb. The EcoFlow DELTA 3 Ultra Plus weighs 74.3 lb.
