The EcoFlow Lineup: RIVER, DELTA, and DELTA Pro

EcoFlow builds three distinct product families. The RIVER series targets portability: lightweight units from 256Wh to 768Wh suited for camping, RV outlets, and short-duration outage coverage. The DELTA series steps up to household loads, with standalone units starting at 1kWh and expandable battery options that push capacity higher. The DELTA Pro and DELTA Pro Ultra are EcoFlow long-duration home backup solutions, designed to integrate with your home electrical panel and accept solar, AC, and EV charging input. Knowing which family fits your situation is the first step to choosing the right unit.

Choosing by Capacity

Capacity is measured in watt-hours (Wh) or kilowatt-hours (kWh). A 256Wh unit like the RIVER 2 will charge phones and laptops through a short outage. A 2048Wh unit like the DELTA 2 Max can run a refrigerator for several hours or keep CPAP and medical devices running through a night. The DELTA Pro 3 at 4kWh handles extended outages for essential circuits. The DELTA Pro Ultra starts at roughly 6kWh per battery and adds batteries in modules for serious home backup needs. Match capacity to your actual load before choosing a unit.

Solar Charging

Every EcoFlow power station accepts solar input. RIVER units accept up to 110W. DELTA units accept higher wattage inputs that allow recharging in a few hours of direct sun. The DELTA Pro 3 and DELTA Pro Ultra support multi-panel arrays that can fully recharge the battery on a good solar day. When comparing models, check the maximum solar input wattage listed on the spec sheet. That number determines how quickly the unit recovers after use. EcoFlow foldable and rigid panels ship with the correct connectors for direct compatibility.

Expandable Systems for Home Backup

The DELTA Pro 3 and DELTA Pro Ultra are modular. You can purchase the base unit and add extra batteries as your budget or needs grow. EcoFlow Smart Home Panel 2 connects the DELTA Pro Ultra to your home electrical panel, letting you manage which circuits stay live during an outage. This approach avoids the complexity of a permanently installed standby generator while giving you meaningful coverage for refrigerators, lights, medical equipment, and other essentials.

EcoFlow X-Boost Technology

X-Boost is an EcoFlow power management feature that allows compatible units to run appliances that draw more watts than the unit rated AC output would normally support. It does this by managing voltage and current delivery intelligently. This extends the practical usefulness of mid-range units for appliances like microwaves or power tools that need short bursts of higher wattage. Not all EcoFlow models include X-Boost, so verify the spec sheet for the specific unit you are considering.

Charging Speed and Input Options

EcoFlow units charge faster than most competing power stations in the same class. The DELTA 2 and DELTA 2 Max support AC charging that can reach 80% in about an hour. The DELTA Pro Ultra accepts multiple input types simultaneously: wall AC, solar panels, and an EV charging port. Faster recharge means the unit is ready again sooner after use. For home backup scenarios where the power may cycle on and off, recharge speed is as important as raw capacity.

Why Buy From Mighty Generators

Mighty Generators is an authorized EcoFlow dealer. Every unit ships with a full factory warranty. There are no restocking fees if you need to make a return. Free shipping applies to eligible orders over $250. Available 24/7 to help you compare models, confirm compatibility with your home setup, or answer questions about installation and panel integration. Call (888) 775-9048 or use the contact page to reach us.