The terms “DELTA” and “RIVER” as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC.
The world's fastest 43 minute AC+solar recharge
Fuel Up 80% in Only 43 Mins*
With DELTA 2 Max's upgraded tech, combine up to 1000W solar input with AC for world-leading charging speeds. In only 43 min get an 80% charge. Or stick with AC for an 80% charge in a speedy 53 mins.
*When combined AC and solar input is 2400W using 1800W AC input and a maximum of 600W solar input.
Maximize solar generation by harnessing multiple PV sources
Dual Solar Input System with Independent MPPT Technology
Maximize the potential of solar energy by simultaneously utilizing multiple photovoltaic (PV) sources with our innovative dual solar input design, each with its independent Maximum Power Point Tracking (MPPT) technology. Enjoy a seamless integration of solar power into your home or business whether you have multiple solar panels or a combination of rooftop and ground-mounted installations, making the most of every ray of sunshine.
Up to 1000W Solar Input
Fully Powered in Just 2.3 Hours
With a solar input of 1000W, fully recharged in 2.3 hours by connect up to 2 EcoFlow 400W Portable Solar Panels or 4 sets of 220W Bifacial Solar Panels.
Solar Charging Times
1000W Charge approx. 2.3 hours
880W Charge approx. 2.6 hours
800W Charge approx. 2.8 hours
Ultra-fast
on-the-go charging
Get faster in-vehicle portable power station charging speeds providing a full charge while you're on the road. With built-in safety features, you'll get industry-leading battery care and charging in one.
* Sold separately
Run 99% of Appliances with X-Boost.
Power pretty much anything with up to 3100W output.
DELTA 2 Max powers almost all the devices you need with a large 2400W AC output. Plus, with X-Boost proprietary technology, run appliances with an output of up to 3100W. Compared with other power stations, DELTA 2 Max can power more devices, while still preventing overloading and overheating.
Plug-and-play home backup power solution
Power Through Outages
Power your essential appliances with a hefty 2400W AC output by connecting DELTA 2 Max (2kWh) and up to two Smart Extra Batteries (6kWh) with your home's transfer switch for partial home backup. With a plug-and-play design, it's easier than ever to prepare for blackouts.
Power for the entire family
2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.
Power of the entire family
2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours.
With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.
Power for the entire family
2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.
*Data based on a 120W referigerator.
Power for the entire family
2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.
*Data based on a 120W referigerator.
Expandable up to 6kWh
Tripple the Power
Take DELTA 2 Max with you anywhere as a solo unit or connect it with two Extra Batteries for up to 6kWh of home backup.
As Quiet as 30 dB
Peaceful charging.
At only 30 dB, DELTA 2 Max is quieter than other 2kWh power stations on the market.
*From a distance of approximately 20 in., noise level is 30 dB (with low input and 500W output) vs. other power stations with 55 dB or higher.
10-year long-lasting LFP battery
Durable, Safe, Lightweight
With its upgraded LFP battery chemistry, DELTA 2 Max has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output.
LFP Battery Chemistry
That's 6× longer than other power stations with a similar capacity and output.
Advanced BMS Protection
A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max safe, secure, and built to stand the test of time.
Robust Design
Made with a sturdy one-piece design, DELTA 2 Max is designed for the rough and tumble of portability. Each port is reinforced, protecting them against wear and tear.
Upgraded Tech, Lighter Weight
Even with its upgraded LFP battery, DELTA 2 Max is still 30% lighter than similar 2kWh LFP power stations on the market.
*Weight 23kg
Protective Layers Inside and Out
With LFP cells, DELTA 2 Max is safe, durable, and highly efficient, even in warm temperatures.
A rubber anti-slip base and a fire-resistant casing offer multiple layers of protection.
Extensive 5-Year
Warranty
With one of the most comprehensive warranties in the industry, we go the extra mile to give you peace of mind.
What's in the box
DELTA 2 Max
AC Charging cable
Car charging cable
DC5521 to DC5525 Cable
User manual & warranty card
Specs
Capacity
2048 Wh (167Ah@12V)
Extra Battery
Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery
AC Output
4 outlets, 2400W total (Surge 4800W)
Max Device(s) Power (with X-Boost)
X-Boost 3100W
USB-A Output
2 ports, 5V, 2.4A, 12W Max per port
USB-A Fast Charge
2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max
USB-C Output
2 ports, 5/9/12/15/20V, 5A, 100W Max per port
Car Power Output
1 port, 12.6V, 10A, 126W Max
DC5521 Output
2 ports, 12.6V, 3A, 38W Max per port
AC Charging
X-stream Fast Charge 2300W, 10A
AC Input Voltage
220-240V~10A 50Hz/60Hz
Solar Charging
11-60V 15A, single port 500W; dual port 1,000W
Car Charging
Support 12V/24V battery, 8A
Battery Chemistry
LFP (LiFePO4 battery)
Cycle Life
3000 cycles to 80+% capacity
Connectivity
Wi-Fi & Bluetooth
Dimensions
497 × 242 × 305 mm /19.6 × 9.5 × 12 in
Net weight (lbs)
50 lbs
Net weight (kg)
23 kg