The Delta Pro Ultra is EcoFlow’s latest portable battery unit. Its true beauty lies in combination with the new EcoFlow Smart Home Panel 2 to become a seamless whole-home backup solution. The DPU is a combination inverter and battery, and the system is expandable from 6kWh to 90kWh capacity. Each Smart Home Panel 2 can support up to three inverters, and each inverter can handle up to five stackable batteries. 

Even without the expanded storage capacity, a single EcoFlow DPU can provide essential power for a home for up to two days. I went hands-on with the DPU and Smart Home Panel 2 and found that it provides a seamless transfer from the grid to backup power in case of a power outage.

Review: EcoFlow Delta Pro Ultra & Smart Home Panel 2

One of the outages I experienced with the EcoFlow Delta Pro Ultra and Smart Home Panel 2 happened during this past winter’s coldest weeks. This home battery backup system gave my family the power to eat warm meals and stay warm through the night. My young kids also slept with their night lights and sound machines while we charged essential devices. 

The Delta Pro Ultra is also portable and can be transported to campsites, with an RV, or remote locations. Its LFP battery means you can even bring it inside to run appliances or charge devices in a pinch without worrying about emissions. However, one Reddit user who purchased the DPU said the solar aspect is good enough for top-off but not enough to be 100% off-grid reliant. 

EcoFlow Delta Pro Ultra + Smart home panel 2  features: Estimated cost per kWh: About $750 | Capacity: 13.5kWh | Battery type: Lithium-iron phosphate (LFP) | Scalability: Up to 5 batteries per inverter and up to 3 inverters per panel | IP Rating: IP65