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My home backup system sees more action than it should, so I've come to appreciate it more than any of my smart home devices. When the power flickers during a hurricane, I no longer have a mini heart attack at the prospect that it could go out altogether: My EcoFlow batteries and solar panels are available at a moment's notice.
That's why this 57% discount on an EcoFlow Solar Generator system is one of the best deals I've found this Prime Day. The bundle includes a Delta Pro and portable 400W solar panels. The Delta Pro is a portable battery with a capacity of 3.6 kWh, composed of LiFePO4 cells to provide reliable backup power for homes, small workshops, RVs, and more.
Also: The best October Prime Day deals live now
The 400W solar panels are foldable, giving you the flexibility to easily rearrange them as needed, take them on the go, or bring them out only when the battery needs recharging. They feature 22.4% conversion efficiency and are IP68 rated for dust and water resistance.
The Delta Pro is ideal for a home backup system, and you can expand your battery capacity by adding extra batteries. The Delta Pro, on its own, can power a full-sized refrigerator for 24 hours and charges as quickly as 1.8 hours with a 240V wall charger. Aside from AC and solar recharging, it also supports EV and car charge.
Looking for the next best product? Get expert reviews and editor favorites with Recommends.
How I rated this deal
The EcoFlow Solar Generator system is very competitively priced at $1,799. The Delta Pro on its own is currently priced at $1,384 with a Prime Day discount, while the solar panels retail for $529. Even with the Delta Pro's sale price, the bundled $1,799 deal is cheaper, making it an even better deal. This package typically sells for at least $2,100 during discount events, so the current deal is an excellent value.
When will this deal expire?
This deal appears to be a part of the Amazon Prime Big Deal Days, also known as October Prime Day, so I'd expect it to expire when the end of the event rolls around on Oct. 8.
While many sales events feature deals for a specific length of time, these deals are often limited-time offers, making them subject to expiration at any moment. remains committed to finding, sharing, and updating the best offers to help you maximize your savings so you can feel as confident in your purchases as we are in our recommendations. Our team of experts constantly monitors the deals we feature to keep our stories up-to-date. If you missed out on this deal, don't worry -- we're continually sourcing new savings opportunities at .com.
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