EcoFlow DELTA 2 Max Portable Power Station with Extra Battery

Expandable capacity

Increase the capacity of DELTA 2 Max with an extra 2048Wh.

 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, caravanning, outdoors or even everyday use.

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 6x— longer than other power stations with a similar capacity and output.

LFP Battery Chemistry

That's 6x— 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

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.

Home Backup

RVing & Outdoors 

DIY Projects 

Filmmaking & Photography 

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 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 - Take control of your power

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

Always power ready Get a notification via the app when the battery hits a low.

As Quiet as 30 dB - Peaceful charging

At only 30 dB, DELTA 2 Max is quieter than other 2kWh power stations on the market.

Features

• Flexible storage from 2-6kWh — Expand capacity by adding up to two DELTA 2 Max Smart Extra Batteries for a total of 6144Wh, perfect for home backup, RVs, and off-grid use.
• Long-term durability — LFP cell chemistry ensures 3000+ cycles, delivering 10 years of daily use before reaching 80% of original capacity.
• Run nearly any appliance — X-Boost technology provides up to 3400W output power to operate 99% of common home devices; supports powering up to 15 devices simultaneously with 6 AC ports.
• Ultra-fast recharging — Supports the world's fastest AC charging plus X-Stream dual AC + solar charging speeds. Handles up to 1000W solar for as fast as 2.3-hour solar charging.
• Superior solar efficiency — 99% MPPT tracking ensures maximum energy capture from solar panels throughout the day.
• Smart controls — Easily manage power settings and view usage data through Wi-Fi or Bluetooth using the EcoFlow app.

Specifications

EcoFlow DELTA 2 Max Solar Generator

• SKU: EFDELTA2Max-US
• Capacity: 2048Wh
• Expandable Storage: Supports up to two DELTA 2 Max Smart Extra Batteries or DELTA Max Smart Extra Battery
• AC Output: 6 ports, 2400W total (4800W surge)
• X-Boost Output: Up to 3400W
• USB-A Ports: 2 ports, 5V, 2.4A, 12W max each
• USB-A Fast Charge: 2 ports, 5V 2.4A / 9V 2A / 12V 1.5A, 18W max
• USB-C Ports: 2 ports, 5/9/12/15/20V, 5A, 100W max each
• Car Power Port: 12.6V, 10A, 126W max
• DC5521 Ports: 2 ports, 12.6V, 3A, 38W max each
• AC Charging: X-Stream fast charge 1800W, 15A
• AC Input Voltage: 100-120V~ max. 15A 50Hz/60Hz
• Solar Input: 11-60V 15A — 500W single port / 1000W dual port
• Car Charging: Supports 12V/24V battery, 8A
• Compatible Devices: EcoFlow WAVE, WAVE 2, GLACIER & Smart Generator
• Battery Type: LFP (LiFePO4)
• Cycle Life: 3000+ cycles to 80% capacity
• Connectivity: Wi-Fi & Bluetooth
• Dimensions: 19.6 in x— 9.5 in x— 12 in
• Net Weight: 50 lbs / 23 kg

EcoFlow DELTA 2 Max Smart Extra Battery

• Model: EFD350-EB
• Weight: 42 lbs
• Dimensions: 18 in x— 9 in x— 11 in
• Capacity: 2048Wh
• Input - Extra Battery Port: 51.2V = 2000W max
• Output - Extra Battery Port: 51.2V = 3,200W max
• Battery Type: LFP
• Cycle Life: 3,000 cycles to 820% + capacity (value preserved exactly as provided)
• Safety Protections: Over-voltage, overload, over-temperature, short-circuit, low-temperature, low-voltage & overcurrent protection
• Optimal Operating Temperature: 68°F to 86°F
• Discharge Temperature: 14°F to 113°F
• Charging Temperature: 32°F to 113°F

Warranty

Energy Systems Central Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer -Year warranty to you.