• 120v home backup: 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.
• Expandable capacity: 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
• Built to last 6× longer: Get 10 years of daily use until hitting 80% of its original capacity. That’s down to its LFP battery chemistry giving you 3000+ cycles.
• Huge AC output: With X-Boost mode get up to 3400W output power to run 99% of home appliances. Power 15 devices at once including 6 AC outlets.
• Fastest recharging: World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
• Capture more energy: 99% MPPT efficiency maximizes solar generation anytime.
• Customized in-app energy management: Prioritize solar or AC charging, view input and output power, battery levels and more.
DELTA 2 Max + 800W Alternator Charger
Charge while you drive, and stay powered up on the road.
800W turbo alternator, 8× faster than traditional in-vehicle auxiliary power outlets. Top up 1kWh in only 1.3 hours.
A 3-in-1 fast charger, maintainer, and jump starter keeps your battery in mint condition.
Easy installation
Suitable for a variety of vehicles, including SUVs, pickups, and RVs.
Expands existing RV house battery capacity.
A DELTA Pro to Smart Generator Adapter is required to connect the Alternator Charger with DELTA Pro-FREE From ecopowerit
EcoFlow DELTA 2 Max Solar Generator
Ditch Gas, Go Solar
Industry's First Drive & Charge Portable Power Solution
Never run out of power on your road trips with the EcoFlow 800W Alternator Charger. Utilize the excess energy generated by your vehicle to turn every minute on the road into a free battery recharge.
Ultimate Power for Life Outdoors
Expandable up to 6kWh
Enjoy more power for group trips, extended adventures, or emergency backup—all from one modular system.
Built for Every Scenario
Power up your RV life, outdoor adventures, and home backup
*Note: Runtime is based on powering a single appliance. All test results shown are based on intimal testing and may vary depending on usage conditions.
RVing & Ourdoors
Home Backup
DIY Projects
Filmmaking & Photography
4 ways of industry-leading fast charging
Car Charging
AC Input
Solar Charging
AC + Solar Dual Charging
Expandable up to 6kWh
Triple 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.
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 1.1 hour.
*When combined AC and solar input is 2400W using 1800W AC input and a maximum of 600W solar input.
Dual Solar Input System with Independent MPPT Technology
Maximize solar generation by harnessing multiple PV sources
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.
Run 99% of Appliances with X-Boost
Power pretty much anything with up to 3400W Output
DELTA Max powers almost all the devices you need with a large 2400W AC output. With X-Boost proprietary technology, run appliances with an output of up to 3400W. Compared with similar portable power stations, DELTA 2 Max can power more devices while also preventing overloading and overheating.
120V Home Backup: 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.
10 Years of Reliable Power
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.
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.
Protective Layers Inside and Out
With LFP cells, DELTA 2 Max is safe, durable, and highly efficient.
A rubber anti-slip base and a highly-rated UL94-5VA fire-resistant casing offer multiple layers of protection.
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 power stations on the market.
Smart Power Control at One Click
Anywhere. Anytime. Have full control of your DELTA 2 Max with the EcoFlow app.
Automatic Control
AC Always-on
Stay worry-free during blackouts. AC Always On Mode keeps your power button active throughout outages and recovery, so your appliances stay on without interruption.
Energy Management
Customize AC or solar input for backup power or energy savings. Prioritize solar energy via the EcoFlow app when using X-Stream AC + solar dual charging.
Low Battery Reminder
Always ready for power. Get notified via the app when the battery is low.
Effortless to use, convenient to transport
Why choose EcoFlow DELTA 2 Max
What's in the Box?
Tech Specs
DELTA Max2
Rated Capacity
2048Wh
Extra Battery
Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery
4 ways of industry-leading fast charging
LFP Battery Chemistry
What's in the Box?
