EcoFlow’s DELTA Pro 3 bundle with a 400W panel, extra battery, and transfer switch at new $3,899 low (Reg. $7,497), more

62% off/From $169

As part of its ongoing Halloween Sale, EcoFlow has launched the next of its 48-hour flash sales, which is taking up to 62% off four different offers – two being power station bundles and two being add-on accessories. Of the lineup, we noticed the best rate yet on the bundle of the DELTA Pro 3 Portable Power Station with an extra (expansion) battery, a 400W solar panel, and a FREE transfer switch – all at $3,899 shipped. Coming down from its $7,497 full price tag, you won’t find this bundle at Amazon; instead, it would currently cost you $5,138 at the moment to pick up the station, panel, and switch together and tack on the extra battery. Discounts have only gone as low as $4,099 in previous sales, with this current sale having offered it at $4,299 before these flash savings. You’ll be getting a 48% discount here through October 24, which cuts $3,598 off the tag for the best price we have tracked to date. Head below to check out the full lineup of 48-hour flash deals.

If you want a unit that can handle much more than just temporary device support while camping, EcoFlow’s DELTA Pro 3 power station is a much more robust option with a starting 4,096Wh LiFePO4 battery (doubled to 8,192Wh with the extra battery here) that can be expanded further up to 48,000Wh with additional equipment. The 4,000W of steady starting output power (6,000W surging) can also expand with the station, going as high as 12,000W when three stations are paired together. It’s one of the few units from the brand sporting the X-Core 3.0 tech, which brings more safety features, increased charging speeds, higher surging capabilities, and much more.

It provides 14 output port options to connect devices, appliances, and more – including a TT-30R port to support your RV. Among the many stations under the EcoFlow flag, the DELTA Pro 3 is the model boasting the most recharging methods – seven single-source methods and 18 combination methods – giving you just about every option you could possibly need in one place. And keep in mind that this bundle not only gives you a starting 400W solar input to recharge, but also the transfer switch, allowing it to cover your home’s breakers during power outages.

EcoFlow’s current 48-hour flash offers (through Oct. 24):

• 160W portable solar panel: $169 (Reg. $449)
• Two DELTA 2 (1,024Wh each) power stations: $759 (Reg. $1,998)
• Two DELTA Pro Ultra expansion batteries (6.1kWh each): $3,699 (Reg. $6,598)
• DELTA Pro 3 (8,192Wh) with battery, 400W panel, and FREE transfer switch: $3,899 (Reg. $7,497)

You can check out EcoFlow’s full Halloween Sale lineup of deals here, with up to 65% discounts, bonus savings, free gifts, and more – all starting from $149. We’ve also got Halloween Sales from Anker SOLIX (with returning Prime Day lows) and Jackery – and several early-bird launches from multiple brands across the last week – all collected and ready to browse in our power stations hub here.

EcoFlow DELTA Pro 3 Portable Power Station features:

• Expandable Capacity : 4–48kWh, from 1 day to week of home power during outages.
• Powerful and Versatile: Delivers both 120V and 240V outputs with up to 4000W in a single unit, capable of powering a 3-ton central AC and all other essential appliances. Exclusive X-Boost technology allows the unit to exceed its rated output, providing up to 6000W of power when needed.
• Continuous Output While Charging: Provides stable, uninterrupted power at 120/240V with a maximum continuous output of 4000W, even during pass-through charging.
• Endless energy: Compatible with portable generators, auto recharging when connecting with EcoFlow Smart Generator 4000.
• Longer Life Cycle: Retains 80% capacity even after 4000 cycles, thanks to advanced EV-grade LFP battery technology.
• Energize All Scenarios: Wide wheels, ergonomic handle & compact design — seamless portability for homes, RVs, and off-grid energy.
• Easy to Use: Plug-and-play design for hassle-free setup.
• Forget Refueling: Fast solar/car/outlet charging, charges to 80% in just 50 minutes, refueling with no worries.

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