Expandable capacity - 1-3kWh expandable capacity to grow your storage to your needs. Add on the DELTA 2 extra battery to reach 2048Wh, or add on the DELTA Max Extra Battery to hit 3040Wh. Great for home backup or everyday appliances.
Huge AC output - 1800W AC output means you can power more than 90% of your home appliances. Or, try plugging in up to 15 devices at once. Unlike other brands, DELTA 2 can prevent overloading from devices up to 2200W thanks to X-Boost technology.
7x Faster AC charging - X-Stream tech means that DELTA 2 charges 7 times faster than the competition. That’s 0–80% in just 50 minutes and 0-100% in 80 minutes with AC input. Or go green without sacrificing speed - Plug in portable solar panels and get up to 500W input to charge from anywhere in as fast as 3 hours.
Built to last 6x 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.
Control from anywhere - Use the EcoFlow app to control your DELTA 2 from anywhere using Wi-Fi. Link with Bluetooth when off-grid. Either way, you can check charging data, customize settings and adjust the charging speed with ease.
Tesla Battery's technology
Say goodbye to technology that's made to die in a couple of months. Delta 2's LiFePO4 battery chemistry gives you years of regular use until hitting 80% of its original capacity.
At the heart of the new EcoFlow DELTA 2 is the LFP battery; this is the same type they use in Tesla vehicles and boasts a lifetime six times greater than the industry average at 500 cycles. As a result, this power station has the potential to be re-charged 3,000 times over its lifetime.
Huge AC Output
How peaceful is it to know that you can keep your largest and most appliances running, even when a blackout its? More than 90% of your home appliances can be powered with its huge 1800W output. You can plug up to 15 devices at once, thanks to X-Boost Technology that will prevent overloading.
The fastest charging on the market
X-Stream tech means that Delta 2 charges 7 times faster than the competition. That's 0-80% in just 50 minutes and 0-100% in 80 minutes with AC Input. If you'd rather go green without sacrificing performance, you can pair your Delta 2 with solar panels and charge in as fast as 3-6 hours with 1x400W, or 2x220W portable solar panels. Delta 2 detects the voltage and current in real-time thanks to its MPPT (Maximum Power Point Tracking) in order to reach >98% efficiency.
Specifications
Capacity
1024 Wh
Extra Battery
Support one DELTA 2 extra battery or DELTA Max extra battery
AC Output
6 outlets, 1800W total (Surge 2700W)
Max Device(s) Power (with X-Boost)
2200W
USB-A Output
2 ports, 5V, 2.4A, 12W Max
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
AC Charging
1200W
Solar Charging
11-60V, 15A, 500W max
Car Charging
Support 12V/24V battery, 8A
DC Charging
1100W
Battery Chemistry
LFP (LiFePO4 battery)
Cycle Life
3000 cycles to 80+% capacity
Connectivity
Wi-Fi & Bluetooth
Dimensions
15.7 x 8.3 x 11 in / 400 x 211 x 281 mm
Net Weight
27 lbs / 12 kg
EcoFlow DELTA 2 Extra Battery Specs
Capacity
1024Wh
Battery
LFP chemistry , 3000 cycles to 80% capacity
Version
Compatible with all versions
Dimension
15.7 x 8.3 x 11.1in / 400 x 211 x 281 mm
Weight
21 lbs / 9.5kg
What’s in the box
DELTA 2 Smart Extra Battery, DELTA 2 Extra Battery Cable, User manual, Warranty card
Extended Portable Power: DELTA 2 with Smart Extra Battery provides longer runtime for devices, appliances, and tools.
Seamless Integration: Extra battery connects easily to DELTA 2 for uninterrupted power supply.
Reliable & Stable Output: Ensures consistent energy delivery during off-grid use.
Travel-Ready Design: Compact and portable setup ideal for camping, RV trips, and emergencies.
Eco-Friendly Energy: Efficient, clean, and safe solution for sustainable power management.
Q&A
Q: What is included in this bundle? A: The bundle includes the DELTA 2 portable power station and the DELTA 2 Smart Extra Battery expansion.
Q: What are the key specifications of the DELTA 2? A: Base capacity of 1,024 Wh, 1,800 W continuous AC output (up to 2,700 W surge), LiFePO₄ battery for long cycle life, and multiple AC, USB‑C/USB‑A, and DC outlets with fast AC charging.
Q: What does the Smart Extra Battery add? A: It doubles the DELTA 2’s energy capacity to ~2,048 Wh, providing longer runtime and more stored energy for appliances and devices.
Q: Why choose this bundle? A: Combines high-output portable power with expandable storage, making it ideal for camping, outdoor use, emergency backup, or portable home-power needs.
Q: Are there any limitations? A: Runtime depends on the load; even with the extra battery, it is not a full home backup system. Charging speed is limited by input capacity of the extra battery.
Maintenance Tips
Regular Cleaning: Wipe both DELTA 2 units and the extra battery with a soft, dry cloth to remove dust and debris.
Battery Care: Recharge both batteries periodically; avoid full discharge to prolong lifespan.
Inspect Connections: Check all ports, plugs, and cables for secure, damage-free connections before use.
Proper Storage: Store in a cool, dry environment away from moisture, extreme heat, or direct sunlight.
Firmware Updates: Use the EcoFlow app to keep software up to date for optimal performance.
Safe Handling: Avoid dropping, impacts, or exposing units to liquids or extreme conditions.
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