The terms "DELTA" and "RIVER" as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC.
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.
Expandable Capacity
Dual Charging
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 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 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.
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.
Multiple ways to charge.
Solar charging
AC Charging
Smart Generator
Car charging
What's in the Box - DELTA Max
1.DELTA Max (1600/2000) 2. DC5521-DC5525 Cable 3. 1.5m AC Charging Cable 4. 1.5m Car Charging Cable 5. User Manual 6. Warranty Card
What's in the box - Solar Panel
1.160W Solar Panel 2.160W Solar Panel Bag 3. Solar to XT60 Charging Cable 4. User Manual
Frequently Asked Questions
Specs of DELTA Max (2000)
Capacity
2016Wh
AC Output (x4)
Pure Sine Wave, 2400W total (surge 4600W), 230V~ (50Hz/60Hz)
USB-A Output (x2)
5V 2.4A, 12W max, per port
USB-C Output (x2)
5/9/12/15/20V 5A, 100W max
DC5521 Output (x2)
5/9/12/15/20V 5A, 100W max
Solar Charging Input
11-100V 13A Max, 800W max
Battery Chemistry
NCM
Shelf Life
1 year (after a full charge)
Net Weight
Approx. 22 kg
Extra Battery
Support up to two DELTA Max Smart Extra Battery/Smart Generator
Max Device(s) Power Supported by X-Boost
3000W
USB-A Fast Charge (x2)
5V/2.4A, 9V/2A, 12V/1.5A, 18W Max
Car Charger Output (x1)
12.6V/10A, 126W max
AC Charging Input
2000W Max, 10A
Car Charging Input
Supports 12V/24V Battery, Default 8A
Cycle life
800 cycles to 80% capacity
Connection
Wi-Fi
Dimension
49.7 x 24.2 x 30.5 cm
Specs of DELTA Max (1600)
Capacity
2016Wh
AC Output (x4)
Pure Sine Wave, 2000W total (surge 4600W), 230V~ (50Hz/60Hz)
USB-A Output (x2)
5V 2.4A, 12W max, per port
USB-C Output (x2)
5/9/12/15/20V 5A, 100W max
DC5521 Output (x2)
5/9/12/15/20V 5A, 100W max
Solar Charging Input
11-100V 13A Max, 800W max
Battery Chemistry
NCM
Shelf Life
1 year (after a full charge)
Net Weight
Approx. 22 kg
Extra Battery
Support up to two DELTA Max Smart Extra Battery/Smart Generator
Max Device(s) Power Supported by X-Boost
2500W
USB-A Fast Charge (x2)
5V/2.4A, 9V/2A, 12V/1.5A, 18W Max
Car Charger Output (x1)
12.6V/10A, 126W max
AC Charging Input
1600W Max, 10A
Car Charging Input
Supports 12V/24V Battery, Default 8A
Cycle life
500 cycles to 80% capacity
Connection
Wi-Fi
Dimension
49.7 x 24.2 x 30.5 cm
Specs of 160W Solar Panel
Unfolded Dimensions
61.8 × 26.8 × 1.0 in (158 × 51.4 × 2.4 cm)
Folded Dimensions
16.5 × 26.8 × 1.0 in (42 × 51.4 × 2.4 cm)
Weight
15.4 lb (Solar Panel 11 lb)
Warranty
12 months
Rated Power
160W(±5W)
Efficiency
21%–22%
Connector Type
MC4
Open Circuit Voltage
21.4V (Vmp 18.2V)
Short Circuit Current
9.6A (Imp 8.8A)
Cell Type
Monocrystalline silicon
Operating & Storage Temperature
−4°F to 185°F