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 1 hour. Or get up to 3600W 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 3000W 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.
Backup your home during power outages with DELTA Max. With an expandable capacity that reaches up to 6kWh, dual charging, and the ability to power your home devices, you can stay powered on in any situation.
Power multiple devices
800W max Solar Input
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 1 hour. 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, AC with solar, or the Smart Generator with solar.
Power 99% of your home devices.
With EcoFlow’s X-Boost technology, DELTA Max can power heavy-duty devices up to 3000W. 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.”
What's in the box
1.DELTA Max 2.AC Charging Cable 3.Car Charging Cable 4.Solar Charging Cable 5.DC5521 to DC5525 cable 6.User Manual
Compare The Models
Output: 2400W (Surge 4600W)
AC Input: 1800W Max
Solar Input: 800W
Frequently Asked Questions
Approx. 48 lbs (22 kg)
19.6 x 9.5 x 12 in (49.7 x 24.2 x 30.5 cm)
32 to 113°F (0 to 45°C)
-4 to 113°F (-20 to 45°C)
AC Wall Outlet, 12V Car Adaptor, Solar Panel, Smart Generator, Smart Extra Battery
Full Recharge Time
1.6 Hours (AC) 21 Hours (12V Car Charger) 5.6-11.2 Hours (Using 4x 110W Solar Panels) 4.2-8.4 Hours (Using 4x 160W Solar Panels) 3.2-6.3 Hours (Using 2x 400W Solar Panels)
1 year (after fully charged)
800 Cycles to 80%+ capacity
BMS, Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection
Testing and certification
UL CE FCC ROHS Telec
AC Charge Input (Power)
X-Stream charge (2000W max)
AC Charge Input (Voltage and Amperage)
Solar Charge Input
11-100V 10A Max, 800W max
Car Charge Input
Supports 12V/24V Battery, Default 8A
AC Output (x4)
Pure Sine Wave, 2400W total (surge 4600W), 230V~ (50Hz/60Hz)
Max Device(s) Power Supported by X-Boost
USB-A Output (x2)
5V 2.4A, 12W max, per port
USB-A Fast Charge (x2)
5V/2.4A, 9V/2A, 12V/1.5A, 18W Max
USB-C Output (x2)
5/9/12/15/20V 5A, 100W max
Car Charger Output (x1)
12.6V/10A, 126W max
DC5521 Output (x2)
12.6V/3A, per port
Smart Extra Battery
Supports up to 2 DELTA Max Smart Extra Batteries (sold separately)
Supported (sold separately)
*Please Note: The above weight, size, etc. have certain measurement errors. Please refer to the actual measurement.
Car charger shares power with the DC5521 output port offering maximum output of 126W.
Whether the product can be charged or discharged depends on the actual temperature of the battery pack
DELTA Max needs to be connected to the DELTA Max Smart Extra Battery for dual charging.