Home emergency power DELTA Max expands up to 6kWh with smart extra batteries, keeping your home powered on in any emergency.
Rapid dual charging Charge up from 0-80% in 65 minutes. Or get up to 3400W speeds by combining AC charging and the EcoFlow Smart Generator.
Power multiple devices Looking for something to power heavy-duty devices like your fridge and dryer? With X-Boost, DELTA Max handles devices up to 3400W with ease.
Portable solar generator Stay powered on no matter what. DELTA Max connects with up to 2x 400W EcoFlow solar panels to deliver 800W Max solar charging speeds.
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. 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 MC4 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.
Multiple ways to charge.
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.
Specs of DELTA Max
AC Output: 6 outlets, 2400W total (Surge 5000W)
USB-A Output: 2 ports, 5V, 2.4A, 12W Max per port
USB-C Output: 2 ports, 5/9/12/15/20V, 5A, 100W Max per port
DC5521 Output: 2 ports, 12.6V, 3A, 38W Max per port
Solar Charging Input: 800W Max, 11-100V, 10A
Battery Chemistry: NCM
Shelf Life: 1 year (after a full charge)
Net Weight: Approx. 48lbs
Extra Battery: Support up to two DELTA Max Smart Extra Battery/Smart Generator
Max Device(s) Power Supported by X-Boost: 3400W
USB-A Fast Charge: 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max per port
Car Power Output: 12.6V, 10A, 126W Max
AC Charging Input: 1800W Max, 15A
Car Charging Input: Support 12V/24V battery, 8A
Cycle Life: 800 cycles to 80% capacity
Dimension: 19.6*9.5*12 in
Specs of 160W Solar Panel
*DELTA Max needs to be connected to the DELTA Max Smart Extra Battery for dual charging.
Please use the AC Charging Cable included in the package for fast charging. Do not use other cables to charge. Plug directly into an AC wall outlet and make sure that the wall output current is more than 15A. Otherwise, reduce the unit charging speed with the AC Charge Speed Switch. EcoFlow takes no responsibilities for any consequences caused by failures to follow instructions, including but not limited to charging with other AC charging cables.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
All orders are shipped free of charge and are not subject to sales tax.
Business days are Monday through Friday. Holidays, Saturday and Sunday are not included in shipping days.
Shipping process: A newly placed order usually takes 48 hours to be processed/shipped and will be delivered to you approximately 1 to 5 business day after an order has shipped, with most packages arriving within 3 business days. For example, an order made on Monday night will be shipped on Wednesday morning and would arrive about 3 business day later.
Our policy lasts 30 days in most case. Some of our brands are offering 60 days, please refer to the product page. If 30 (or 60 in special cases) days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.
To be eligible for a 100% refund, your item must be in the same condition that you received it. It must also be in the original packaging.
In the case you used the product and you would like to return it, you will be responsible for the shipping fee and a restocking fee might apply.
In the rare case that a product becomes faulty or a buyer receives a product with defects, buyers are entitled to request for a product replacement within 30 days of receiving the item. To request a replacement, buyers are required to provide photo/video evidence of the product's manufacturing defects via email