When you're shopping for residential outdoor power equipment, the first question isn't 'generator or battery?' - it's 'what job am I trying to power?' Do you need to run a whole house through a multi-day outage, top off an EcoFlow station quickly, or keep phones and lights going at a campsite? The four EcoFlow units here cover all three jobs, and the listed prices range from $149.99 to $4,799. That spread is wide enough that picking the wrong one can cost you capability you don't need - or leave you short when the power goes out.
Quick take
This lineup includes two dual-fuel SG4000 generators, an expandable DELTA Pro Ultra whole-home battery, and a compact TRAIL 300 DC power station. The two SG4000 units share the same 196cc engine, 2.8-hour full-load gas runtime, and 56A DC output, but differ in condition and listed price. The DELTA Pro Ultra is the large-capacity option for home-scale backup, while the TRAIL 300 is a small DC-only companion for on-the-go charging.
Listed-price comparison
| Product | Listed price | Relative price |
|---|---|---|
| EcoFlow SG4000 (Home Power Backup) | $1,573.75 | |
| EcoFlow SG4000 (DELTA Pro series) | $1,261.25 | |
| EcoFlow DELTA Pro Ultra | $4,799.00 | |
| EcoFlow TRAIL 300 DC | $149.99 |
Decision matrix
- Whole-home outage coverage: DELTA Pro Ultra.
- Generator-style fast charging for an EcoFlow battery: either SG4000; choose the new edition if you prefer new condition, or the DELTA Pro series edition for the lower listed price.
- Portable device charging for camping or emergencies: TRAIL 300.
Product notes
EcoFlow SG4000 DC Fast Charging Dual Fuel Smart Generator for Home Power Backup
This new SG4000 is designed to work as home backup power and to fast charge an EcoFlow power station. It delivers 3200W DC fast charging, 56A DC at 40-60V, and uses a 196cc engine running on LPG or gasoline. You get 2.8 hours of runtime at full load and 8 hours at quarter load, with app-based start and stop controls. The main drawback is the CARB restriction: the unit is not CARB-approved, which limits its appeal in states with stricter emissions rules. At $1,573.75, it is the costlier of the two SG4000 editions, but it is the only one listed as new.
EcoFlow SG4000 DC Fast Charging Dual Fuel Smart Generator for DELTA Pro series
This is the same SG4000 hardware, listed as a certified refurbished unit for $1,261.25. The engine and electrical output are identical to the new version, including the 196cc displacement, dual-fuel capability, and 3200W DC fast charging for DELTA Pro series batteries. The key differences are the condition - refurbished rather than new - and the lower listed price. It also carries the same CARB limitation, so if you're in a state that enforces CARB compliance, this won't be the right fit. For anyone pairing the unit with a DELTA Pro and willing to accept refurbished condition, the lower listed price makes this the version to choose.
EcoFlow DELTA Pro Ultra 12kWh LiFePo4 Power Station, Whole Home Power-cut Backup
The DELTA Pro Ultra is the whole-home answer in this group. It comes with a 6144Wh battery, expandable to 90kWh, and delivers 120V/240V with 7200W total AC output - enough to power major appliances like central air conditioning. The LFP battery is rated for 3500 cycles to 80% capacity. This unit is marked Very Good - Refurbished and listed at $4,799.00, which is the highest price in the comparison. If you need whole-home coverage and can handle the scale and price, this is the one to choose. The trade-off is the footprint; it's not a portable option for quick trips.
EcoFlow TRAIL 300 DC Portable Power Station 288Wh Battery 300W Solar Generator
The TRAIL 300 is the smallest and least expensive unit here at $149.99. It's a DC-only power station with 288Wh of LFP capacity and 300W total DC output, split across five ports: two USB-A, two USB-C PD3.1, and a 12V car outlet. That setup is ideal for charging phones, tablets, lights, or small devices while camping or during a short outage. The limitation is that it's DC-only, so standard AC household appliances won't plug in directly without an inverter or adapter. It's also listed as certified refurbished, which is worth noting before you decide. For on-the-go gadget power, it's a lightweight, easy pick.
Final recommendation by use case
For whole-home backup from a battery system, the DELTA Pro Ultra offers 7200W AC output and expandable capacity. If you want a generator to keep an EcoFlow battery charged, either SG4000 edition will do the job - choose the new home backup edition if you prefer new condition, or the DELTA Pro series edition for the lower listed price. For portable charging on a trip or emergency, the TRAIL 300 is the compact choice.
