EF ECOFLOW DELTA 2 Max Smart Extra Battery - 2,048Wh LiFePO4 Expansion Battery with 3000+ Cycles - EFD350

Expandable Capacity. Increase the capacity of DELTA 2 Max with an extra 2048Wh. Triple the Power. 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, RVing, outdoors or even everyday use .

Why Choose EF ECOFLOW DELTA 2 Max Smart Extra Battery?

Built to Last 6× 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. No fumes. No noise. No maintenance. Solar generators don’t burn fossil fuel, so with zero emissions or fumes, they’re a clean replacement for gas generators. Unlike gas generators, there’s no fuel to refill, filters to clean, or moving parts to break .

Key Features

• Expandable Capacity – Increase the capacity of DELTA 2 Max with an extra 2048Wh. Triple the Power. 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, RVing, outdoors, or everyday use .
• Built to Last 6× Longer – Get 10 years of daily use until hitting 80% of its original capacity. LFP battery chemistry giving you 3000+ cycles .
• No Fumes, No Noise, No Maintenance – Solar generators don’t burn fossil fuel, so with zero emissions or fumes, they’re a clean replacement for gas generators. Unlike gas generators, there’s no fuel to refill, filters to clean, or moving parts to break .
• Use Safely Indoors – Outdoors is the only safe place to operate a portable gas generator, keeping your family safe from toxic carbon monoxide. Since it doesn’t emit any fumes you can use a solar generator anywhere, inside or out .
• Quiet Operation – Without internal combustion engines, solar generators are extremely quiet. From a distance of approximately 20 inches, the noise level of a DELTA 2 Max solar generator (low input and output of around 500W) is only 30 dB, versus others with a volume of 45 dB or higher .
• Compatible With Multiple Units – Compatible with DELTA 2, DELTA Max 2000, and DELTA 2 Max Outdoor Generators .

What’s Included

Complete extra battery kit including EcoFlow DELTA 2 Max Smart Extra Battery, Extra Battery Cable, User Manual, and Warranty Card. Note: Main power station sold separately .

Specifications