EcoFlow DELTA 2 Max Portable Power Station


Regular price
Price: $1,349.00
Regular price
List Price: $1,899.00
Sale price
Price: $1,349.00
You save: $550.00 (29%)
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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 power stations on the market.

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.

Power for the entire family, 2048Wh Capacity

A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. Using your transfer switch, or plugged in directly, keep your fridge on and stop food from spoiling for up to 14 hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.

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.

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.

The world's fastest 43 minute 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.

Customized In-App Energy Management

Smart Automatic Control - Save more on electricity billsCustomize the working time of DELTA 2 Max to avoid peak rates.

AC Always On - Experience peace of mind during power outages With our all-new AC Always On Mode, the AC power button stays on, even during a power outage or after the grid power is back, keeping your appliances powered no matter what.

Energy Management - Easily adjust power Easily adjust AC or Solar input to fit your needs: backup power reserve or energy savings.Prioritize solar energy input via the EcoFlow app when using X-Stream AC + solar dual charging.

Low Battery Reminder - Get a notification via the app when the battery hits a low.


Capacity: 2048 Wh
Extra Battery: Support up to two DELTA 2 Max Smart Extra batteries/ DELTA Max extra battery
AC Output: 6 outlets, 2400W total (Surge 4800W)
Max Device(s) Power (with X-Boost): 3400W
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
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 1800W, 15A
AC Input Voltage: 100~120V 15A, (50Hz/60Hz)
Solar Charging: 11-60V, 15A, single prt 500W, dual port 1000W
Car Charging: Support 12V/24V battery, 8A
EcoFlow WAVE & WAVE 2 & GLACIER & Smart Generator: Supported
Battery Chemistry: LFP (LiFePO4 battery)
Cycle Life: 3000 cycles to 80+% capacity
Connectivity: Wi-Fi & Bluetooth
Dimensions: 19.6 × 9.5 × 12 in
Net weight (lbs): 50lbs 


1. What battery does the DELTA 2 Max use?

High Quality LFP Battery

2. What devices can the DELTA 2 Max's AC Output port power?

With high rated power and peak power, the AC Output port can power most household appliances. Before you use it, we recommend that you confirm the power of the appliances first and ensure the power sum of all loaded appliances is lower than the rated power.

3. How long can the DELTA 2 Max Portable Power Station charge my device?

The charging time is shown on the product's LCD screen, which can be used to estimate the charging time of most appliances with stable power usage.

4. How do I know if the DELTA 2 Max is charging?

When it's charging, the remaining charging time will be shown on the LCD screen. Meanwhile, the charging indicator icon begins to rotate with the remaining battery percentage and the input power shown on the right of the circle.

5. How do I clean the DELTA 2 Max Portable Power Station?

Gently wipe it with a dry, soft clean towel or paper towel.

6. How do I store the DELTA 2 Max Portable Power Station?

Before storing it, please confirm the product is off and then store it in a dry ventilated place at room temperature. Do not place it near water sources. For long-term storage, please discharge and recharge the product every 3 months to extend its battery life.


60 months


EcoFlow DELTA 2 Max Portable Power Station User Manual


Order Confirmation

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your choice of payment for the purchase.

If your item happens to be on back-order or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment

Your order will ship within 5 business days. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. You should receive your item(s) between 5-10 business days.

We offer free shipping on all orders within the contiguous United States via FED EX, UPS, DHL and USPS.

No shipping outside the contiguous United States.

If you have any questions feel free to give us a call or email us at


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    Customer Reviews

    Based on 2 reviews
    Pretty Cool

    I haven’t finished all of the tests but so far going really well. I ran a test to see how long my fridge would run off the battery. The battery made it 19 hours and estimated it would make it another hour. I got to 8% capacity left. Plan is to next run the battery down with the freezer. Then will recharge for the first time using my 400 watt solar panel. Figuring I may want to get a second 400 panel later. The display is great. All good information. The App is awesome for sure. Can be wherever and see progress. Glad I finally made the purchase. The sale helped push me over the line. Great addition to my power down preparations.

    Another great ecoflow product

    I've had my delta 2 max now for 3 weeks and so far I'm loving it. It's a little more heavier than the delta 2 is at around 50 pounds vs 28 for the delta 2 but not to heavy for me to carry it around without a problem. I've used it to power various appliances around my house such as a microwave oven, a convection oven, hotplate, hairdryer, space heater and a room size air conditioner and it's handled everything like a champ! The fans are alot quieter than the delta 2 fans also. The fast charging is nice at around 10% it took a little over a hour to charge to 100%. I love the eccoflow app too! It puts everything you need to know about the unit and what it's powering at your fingertips. Overall it is a great unit with lots of awesome features and works really well for what I use it for. I am well pleased with my purchase and would recommend this product to others who are looking for a portable powerstation.