When a power outage hits, or you need dependable energy far from the grid, the compact DELTA 3 Max Plus portable power station delivers a clear, reliable answer.
Built around a 2048Wh LiFePO₄ battery, 3000W pure sine wave inverter power, AC output, and a 6000W surge rating, it's sized to run a refrigerator, lights, CPAP, power tools, and other appliances and home essentials. It's a strong fit for home backup, RV builds, cabin power, emergency prep, or worksite use without the guesswork.
AC Output and Anderson Port
The unit puts 3000W of continuous power across four 20A AC outlets, with X-Boost technology extending effective output to 3800W for resistive loads like kettles, heaters, and blenders.
The 6000W surge handles compressor startups, circular saws, and other heavy loads without tripping, while USB ports (USB-C up to 140W) and USB-A (18W), a 12V DC Anderson port, and a car adapter port keep laptops, phones, and connected devices charged simultaneously.
Total storage reaches up to 10kWh when you add compatible EcoFlow smart extra batteries, ideal for extended outages or high-draw overnight loads. Runtime varies by load, duty cycle, efficiency, and ambient temperature, so tell us what you're running and for how long, and we'll help confirm the right configuration before you buy.
Charging Performance
Five charging methods deliver fast charging flexibility for the Delta 3 Max Plus: AC charging (up to 1800W via the included AC charging cable), solar charging via DC inputs and EcoFlow portable panels for efficient solar generation (up to 1000W solar input), car charging, an EcoFlow smart generator, and simultaneous solar plus generator.
AC or generator charging speed reaches 0 to 80% in roughly 1.2 hours; max solar input reaches 80% in approximately 1.7 hours under ideal conditions.
For sensitive electronics such as a Wi-Fi router, servers, and medical equipment, the industrial-grade UPS switchover completes in under 10ms, keeping critical devices running on stable, uninterrupted power. An AI-enhanced BMS delivers 40+ layers of fault protection, fan noise stays at or under 30dB, and LFP chemistry means no fumes and no emissions, fully safe for indoor use.
Note: EcoFlow solar panels are designed to pair with power stations like this one, not standard solar inverter systems; that distinction matters when comparing portable power stations with fixed inverter setups.
Why Choose Off-Grid Source?
Off-Grid Source is an authorized EcoFlow dealer, meaning your five-year warranty (3 years standard plus 2 years extended after EcoFlow app registration) is fully backed from day one. The EcoFlow app includes features like Wi-Fi connectivity, real-time monitoring, and EcoFlow OASIS energy management with time-of-use scheduling.
We offer free shipping to the lower 48 states, with most orders delivered in 3 to 10 business days. Inspect your delivery on arrival, keep all packaging, and document any damage within 72 hours so we can act quickly.
Our 30-day return policy covers eligible products, with free return shipping for damaged or defective arrivals. Find a lower price from an authorized dealer? Request a price match before checkout for guaranteed savings, and we'll verify it.
Call us at 877-556-3347, use live chat, or email; a real person will help you confirm loads, runtime, and the right bundle.
EcoFlow DELTA 3 Max Plus Expandable Capacity
Check the product page for current pricing, sale status, and availability, as stock and delivery estimates can change. Order the standalone unit or bundle it with EcoFlow portable solar panels or a smart extra battery to push usable capacity to 4096Wh and beyond. Not sure which setup fits your loads? Contact our team or use our system sizing tool; we'll help you move from planning to powering with complete confidence.
