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Find everything you need for your Tiny Home or Small Space
Find everything you need for your Tiny Home or Small Space

EcoFlow DELTA 2 Smart Extra Battery

by EcoFlow
Original price $649.00 - Original price $649.00
Original price
$649.00 - $649.00
Current price $649.00

In Store & Ready to Ship

All orders are shipped within 1-2 business days. Proudct ETA 5-7 business days.

Expand the capacity of your EcoFlow DELTA 2 Portable Power Station with the EcoFlow DELTA 2 Smart Extra Battery. This smart extra battery significantly boosts your power station’s capacity, ensuring you stay powered during emergencies, outdoor adventures, or daily use.

Key Features:

  • Expanded Capacity: The DELTA 2 Smart Extra Battery increases the DELTA 2's capacity from 1024Wh to 2048Wh, providing ample power to keep your home running during outages or to support extended off-grid activities.

  • Synchronized Charging and Discharging: The DELTA 2 and its Smart Extra Battery charge and discharge together, ensuring seamless and efficient energy management. Whether charging via solar panels, car, or AC outlets, both the DELTA 2 and the extra battery recharge simultaneously when connected.

  • Real-Time Monitoring: Stay informed with the built-in screen and EcoFlow app. The screen displays battery percentage, remaining recharge time, hours left, and other vital information. Additionally, the EcoFlow app allows you to monitor and manage the battery status remotely from anywhere.

  • Built-in Storage Compartment: The DELTA 2 Smart Extra Battery includes a built-in storage compartment, offering convenient space to store accessories and keep your setup organized, whether at home or on the go.

  • Versatile Power Options: With the expanded capacity, the DELTA 2 can power multiple devices simultaneously, ensuring you have all the ports and power you need for any situation. This versatility makes it perfect for home backup, outdoor use, and everyday power needs.

Enhance your EcoFlow DELTA 2 Portable Power Station with the DELTA 2 Smart Extra Battery, providing you with more power, greater flexibility, and reliable energy for any situation. This smart extra battery ensures you are well-prepared for emergencies and extended power demands, offering peace of mind and convenience wherever you are.


  • Make it a Triple. Expand Capacity: Start with 1kWh and expand to 2048Wh with the DELTA 2 extra battery or to 3040Wh with the DELTA Max Extra Battery, making it ideal for home backup or everyday appliances.
  • Power Pretty Much Anything: 1800W AC output powers over 90% of home appliances, including microwaves, fridges, and coffee makers. Supports up to 15 devices simultaneously and prevents overloading up to 2200W with X-Boost technology.
  • Efficient Solar Charging: Pair with solar panels to recharge in 3-6 hours using 1x400W or 2x220W portable solar panels. The MPPT smart algorithm optimizes voltage and current for >98% efficiency, ensuring a faster charge.
  • Built to Last 6x Longer: Equipped with LiFePO4 battery technology, providing over 3000 full charge and drain cycles, maintaining 80% of original capacity for years of regular use.
  • Plug and Play Home Backup Power: Easily connect to your home's power inlet box using a generator cord for partial home backup. Designed for quick and simple setup to prepare for blackouts.
  • Control from Anywhere: Use the EcoFlow app to manage your DELTA 2 remotely via Wi-Fi or Bluetooth. Monitor charging data, customize settings, and adjust charging speed with ease.


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


Owner's Manual

Manual - EcoFlow DELTA 2 Smart Extra Battery