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I used this EcoFlow battery to run my 3,000-sq-ft home in a blackout – here’s how it kept my AC on

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EcoFlow Delta Pro Ultra X

4.5 / 5

Very good

pros and cons

Pros

  • Strongest EcoFlow home battery yet, with scalable 12-36kW output and 12-180kWh capacity.
  • Perfect companion to the Smart Home Panel 3.
  • Fast, 20ms auto switchover.
Cons

  • Very expensive startup cost.
  • EcoFlow app is far from intuitive, with a confusing layout and elusive options.

apr / 2026

 on Google.


It’s easy to let stress take over when your home’s lights go out, especially during a storm. There’s a certain level of comfort when you know you’re covered by backup power, but the success of this approach hinges on how you manage said power.

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I’ve tested multiple power stations as home backup batteries, but EcoFlow powers the best system I’ve used: the Delta Pro Ultra X (DPUX). To say that this system is an upgrade on others is a downright understatement. 

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How the full home backup system works

EcoFlow pulled out all the stops with the SHP 3, starting by increasing the circuit count from 12 to 32. While the older SHP 2 served as a partial backup and critical load panel, the SHP 3 is here to replace your existing panel and works as a gateway for energy monitoring and home backup management. 

EcoFlow Delta Pro Ultra X
Maria Diaz/ZDNET

The SHP 3, with the newer EcoFlow Delta Pro Ultra X, is a system that has run my entire 3,000-square-foot house during an outage as if the grid had never gone down. Compared to the older DPU, the DPUX works as a home battery system, a backup generator, and a smart energy manager. 

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The DPUX has a scalable power output of 12kW-36kW, a capacity of 12kWh-180kWh, and solar input of up to 10kW. This capability means the DPUX can run everything in your home at once, including large loads like your HVAC and EV charger, and keep your home running for days — not hours. 

This system’s switchover speed is outstanding compared to others I’ve tested. At under 20ms, I don’t even notice a flicker in my lights when the power went out. 

The one thing that can improve

The only thing I wish could be improved is the EcoFlow app. The app has gotten a lot cooler and more visually appealing over the past two years, but EcoFlow has sacrificed the user experience for flashy visuals.

Source : ZDNet

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