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The EcoFlow Delta 3 Classic solar generator is available with a 220W solar panel for 40% off at $599 as part of an Amazon Prime Day Deal. The seal also includes a free EcoFlow Rapid magnetic charger with a 5,000 mAh capacity (valued at $30) with the purchase of $500.
Also: The best Amazon Prime Day deals
This 1,024Wh power station can handle some home backup emergencies and tag along on camping and road trips. The EcoFlow Delta 3 Classic is a good fit for time-of-use and solar generation, and it can also provide essential backup power during short outages.
At 1,024Wh, this power station is large enough to run essential devices during an outage, yet affordable and portable enough to take with you. The EcoFlow Delta 3 Classic is a LiFePO4 battery that is rated for 10 years of use. It operates quietly enough for you to use it while sleeping, at 30dB on light loads.
This setup is a clean alternative to a traditional gas generator, but the Delta 3 Classic also has an integrated UPS mode to keep critical devices running with 10ms auto-switch. This ensures your computer or NAS system keeps running even if the power drops.
To recharge, you can charge it from 0% to 80% in just 45 minutes with AC or a generator, while solar and alternator charging takes only 108 minutes. For output, the Delta 3 Classic has two USB-C ports, one USB-A port, and three AC ports.
How I rated this deal
At $599, we’ve only ever seen the EcoFlow Delta 3 Classic with 220W solar panels hit a lower price than this during Black Friday 2025, when it briefly went down to $509. Even if this isn’t the absolute lowest price we’ve ever seen for this bundle, you can buy it with confidence any time it’s $699 or less, which includes right now.
This year, Amazon Prime Day runs from Tuesday, June 23, to Friday, June 26, 2026. The sales event used to take place in the second week of July, but Amazon moved it forward by a few weeks in 2026.
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With Amazon Prime Day coming up, this deal will likely run through June 26, 2026 — but there are no guarantees.
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