EcoFlow DELTA 3 Ultra Portable Power Station + 400W solar panel
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$1,799.00at WellbotsChecked Nov 10
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The DELTA 3 Ultra is EcoFlow's large-capacity portable power station, paired here with a 400W folding solar panel for off-grid charging. It is built for whole-home backup, RV and van setups, and job sites where a small unit would run out too fast. Against smaller DELTA models it trades portability for capacity and output; against gas generators it is quieter and fume-free but costs more per watt. Owners of the DELTA line generally praise the app control and fast AC recharging, while noting the weight and the cost of the solar bundle.
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Owners of EcoFlow's DELTA line praise the app, the fast AC recharge and the steady output under load. Common complaints are weight and the cost of the larger units.
The EcoFlow DELTA 3 Ultra is a portable power station with 3,072 Wh of energy storage and a 3,600 W rated inverter (7,200 W surge). It can run heavy-duty appliances such as refrigerators and power tools, and it can power an RV panel. With X-Boost 3.0 technology, it supports devices up to approximately 4,600 W.
It is built with automotive-grade full-tab LFP battery cells rated for over 10 years of use. It is made to handle harsh environments, including humidity, salt spray and drops. A 10 ms automatic switchover (UPS) keeps sensitive electronics running, and Smart Output Priority lets you pre-set essential loads, such as a fridge or router, to stay powered. It runs at 25 dB under low-load conditions.
The bundle includes a 400 W portable solar panel. It has a foldable, one-piece design with monocrystalline cells and up to 23% conversion efficiency. Its protective case doubles as an adjustable kickstand, and the panel has an IP68 waterproof rating.
