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.
400W Rigid Solar Panel
Fast Charging - With a high conversion efficiency rate of up to 23%, the 400W panel charges your LFP batteries faster than similar-sized solar panels.
Weatherproof & Durable - The rigid panel balances design with robust materials allowing the panel to weather any storm while offering the same excellent performance and aesthetics for years.
Off & On-grid Solution - This high-wattage panel works for both on-grid and off-grid solar-powered setups, storing energy for outages, reducing power bills, or powering an off-grid home.
Universally Compatible - The 400W solar panel includes a 300mm charging cable that gives you plenty of space, maximizing solar input. With an all-inclusive solar connector, the 400W rigid panel works with other 3rd party solar systems and power stations.
DELTA Max Smart Extra Battery
More of DELTA Max - Double runtime with this add-on battery that plugs into any DELTA Max portable power station. Add up to two Extra Battery units for a total capacity of 6048Wh.
Convenient recharging - DELTA Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA Max from solar panels, AC outlets, a vehicle, or our Smart Generator, the DELTA Max Extra Battery will recharge alongside.
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.
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 rigid 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.
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 - Without Extra Battery
1. DELTA Max 2.AC Charging Cable 3. Car charging cable 4. DC5521 to DC5525 cable 5.User Manual and Warranty card 6. 2×400W Rigid Solar Panel 7. Solar to XT60 Charging Cable 8. Support Brackets
What's in the box - With Extra Battery
1. DELTA Max 2.AC Charging Cable 3. Car charging cable 4. DC5521 to DC5525 cable 5.User Manual and Warranty card 6. 2×400W Rigid Solar Panel 7. Solar to XT60 Charging Cable 8. Support Brackets 9. DELTA Max Smart Extra Battery
Frequently Asked Questions
Specs of DELTA Max (2000)
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)
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
CE WEEE CTP RCM KC
AC Charge Input (Power)
X-Stream charge (2000W max)
AC Charge Input (Voltage and Amperage)
Solar Charge Input
11-100V 13A 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 (2000) needs to be connected to the DELTA Max Smart Extra Battery for dual charging.