Solar Charging

The EcoFlow DELTA Max Portable Power Station is a high-capacity solution designed for home backup and off-grid power needs. With a robust 2000W AC output and expandable capacity up to 6kWh, it can power essential appliances like fridges and lights during blackouts. DELTA Max features rapid dual charging capabilities, reaching 0-80% in just 65 minutes, and supports combined charging from AC, solar, and smart generators for even faster recharge times. Its X-Boost technology allows it to power devices up to 3400W, accommodating heavy-duty appliances. The system includes advanced solar integration with up to 800W max solar input and a smart generator for emergency backup. Control and monitor DELTA Max remotely via the EcoFlow app, and enjoy versatile charging options from AC, solar, car, or generator.
Plug and play home backup power
Power your essential appliances with 2000W huge ACoutput by directly connecting the DELTA Max with Transfer Switch and a Power Cord for partial home backup. With a plug-and-play design, it's easier than ever to prepare for blackouts.
Expandable home backup power.
A single DELTA Max unit packs a 2kWh capacity that is expandable up to 6kWh with DELTA Max Smart Extra Batteries or DELTA 2 Max Smart extra batteries. This means when a blackout hits, you can continue to power your important home devices such as your fridge and lights for hours on end.
Convenient and fast dual charging.
DELTA Max charges up safely and rapidly from 0-80% in just 65 minutes. And it gets even better. If you’re looking for an even faster way to charge up DELTA Max, you can combine AC with the smart generator to get up to 3400W, AC with solar to get up to 2600W, or the Smart Generator with solar to get up to 2600W.*
Power 99% of your home devices.
With EcoFlow’s X-Boost technology, DELTA Max can power heavy-duty devices up to 3400W. That means during a power outage or blackout, you can continue to power your fridge, dryer, and more. That’s the industry gold standard for a portable power station of this size and capacity.
Harness the power of the sun.
DELTA Max connects with up to 2x 400W EcoFlow solar panels to deliver 800W Max solar charging speeds. With a voltage range from 11-100V and the Solar connector, you can also connect other solar panels to your DELTA Max. Even during cold or cloudy days, our smart maximum power point tracking (MPPT) algorithm automatically detects voltage and current in real time to give you optimum solar generation throughout the day.
Emergency backup power.
Disasters can occur at any time of the year, sometimes lasting longer than we ever expected. When extended blackouts hit, the EcoFlow Smart Generator serves as an emergency option that integrates with DELTA Max. It auto-starts when your DELTA Max hits a low level of charge, recharges your DELTA Max, and stops the engine all by itself once your DELTA Max hits a full charge. This gives you a reliable emergency backup option that relies on minimum use of a generator.
Control, monitor, and manage your energy use.
Control and monitor your DELTA Max with the EcoFlow app. Dive into the settings to customize your power use or control DELTA Max remotely.
There are multiple ways to charge DELTA Max wherever you are. If you’re at home, plug into an AC wall outlet or solar panels. If you’re out and about, charge DELTA Max in your car or use solar panels if you’ve set up camp. In extreme emergencies during power outages, connect the DELTA Max to the Smart Generator for a last-standing power source.
Solar Charging
AC Charging
Solar Generator
Car Charger
DELTA Max (2000)
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Extra Battery:
AC Output:
Max Device(s) Power Supported by X-Boost:
USB-A Output:
USB-A Fast Charge:
USB-C Output:
Car Power Output:
DC5521 Output:
AC Charging Input:
Solar Charging Input:
Car Charging Input:
Battery Chemistry:
Cycle Life:
Connection:
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Dimensions:
At King of Generators, we are committed to ensuring you have a seamless experience with your purchase. Below is an overview of the EcoFlow warranty policy to help you understand coverage and how to make a warranty claim through King of Generators support.
EcoFlow provides a limited warranty on its products, starting from the date of purchase. The warranty period varies by product type:
For detailed coverage, refer to the product-specific warranty on EcoFlow’s official website or contact King of Generators support.
The warranty does not cover:
Note: EcoFlow products are designed for use in the U.S. Warranty claims for malfunctions due to use outside the country may not be covered.
If you experience any issues, please contact King of Generators support to initiate a warranty claim.
📞 Phone: (855) 799-2943
📧 Email: info@kinggenerators.com
Our team will assist you with the claim process, including verifying your purchase, troubleshooting the issue, and coordinating with EcoFlow for repair or replacement.
Once approved, we will provide further instructions, including shipping details and estimated resolution time.
For any questions regarding warranty coverage, feel free to contact King of Generators support. We're here to help!