Skip to product information
1 of 10

EcoFlow DELTA 2 + DELTA Max Smart Extra Battery | 1024Wh | 1800W | 500W Solar Input

EcoFlow

$1,999.00
$1,999.00
In Stock — Ready to Ship
Free Shipping
Mfr. Warranty
Authorized Dealer
Easy Returns

Price Match Guarantee

Found it cheaper? Send us the link and we'll match or beat the price at any authorized retailer.

View full details

Product Details

The EcoFlow DELTA 2 + DELTA Max Smart Extra Battery delivers 1024Wh of LFP capacity with 1800W AC output and up to 500W solar input. Built on LFP battery chemistry with 3,000+ cycle longevity, this station is engineered for years of reliable service — whether you need it for camping, RV trips, or home backup, remote work.

LFP battery chemistry ensures matched cycle life and consistent performance with the host station. Simultaneous charging via all host station input sources maintains the expansion battery at full capacity without separate charging management.

Brand new in box

Brand new in box

5 year factory warranty

5 year factory warranty

Fast shipping (5–7 business days)

Fast shipping (5–7 business days)

Authorized EcoFlow dealer

Authorized EcoFlow dealer

  • Adds 1024Wh of LFP capacity via direct expansion port connection
  • LFP chemistry: 3,000+ cycles to 80%+ capacity, matched to host station specification
  • No additional inverter or hardware required — connect and the BMS manages the rest
  • Charges simultaneously with host station via AC, solar, and DC inputs
  • Backed by EcoFlow's standard product warranty

General

  • Capacity: 1024Wh (2048Wh with the DELTA 2 Smart Extra Battery)
  • Connectivity: Wi-Fi & Bluetooth
  • USB-A Fast Charge: 2 ports, 5V 2.4A / 9V 2A / 12V 1.5A, 18W Max
  • Car Charging: Supports 12V/24V battery, 8A

Battery

  • Battery Chemistry: LFP (LiFePO4 battery)
  • Cycle Life: 3000 cycles to 80+% capacity

Output

  • 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-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

Input

  • AC Charging: 1200W
  • Solar Charging: 11–60V, 15A, 500W Max
  • DC Charging: 1100W

Dimensions & Weight

  • Dimensions: 15.7 × 8.3 × 11 in / 400 × 211 × 281 mm
  • Net Weight: 27 lbs. / 12 kg

This item comes with a 5 year factory warranty.