EcoFlow is currently offering discounts of up to $600 on two of its portable power stations, the DELTA 3 Max and the DELTA 3 Ultra Plus, giving Americans a chance to shore up emergency power supplies ahead of Amazon’s Prime Big Deal Days.
For readers who value self-sufficiency, having backup power on hand means fewer disruptions when the grid fails, whether from storms, grid instability, or simple bad luck. Both models are available now on EcoFlow’s website.
The DELTA 3 Max is built for home backup and emergency use. It delivers 2,400W of AC output with a 4,800W surge capacity, enough to run a refrigerator, a coffee maker, and other household essentials during an outage. It operates quietly and includes multiple AC and USB ports so several devices can be powered simultaneously.
For those wanting more capacity, the DELTA 3 Ultra Plus offers 3,600W of continuous output and a 7,200W surge rating, with six charging methods. It can connect to a home’s electrical system through a Manual Transfer Switch and Inlet Box, and it includes OASIS 3.0 Smart App Control for remote monitoring. A feature called Storm Guard Mode is designed to automatically charge the unit ahead of forecasted severe weather.
With its X-Boost function enabled, the DELTA 3 Ultra Plus can support heavy-duty equipment drawing up to 4,600W, including items like clothing steamers and lawnmowers.
Both units are marketed as options for households looking to reduce reliance on the grid during outages, or for those who want portable power for off-grid activities such as camping. The discounts are available for a limited time.


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