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Ecoflow Delta 2 Max Smart Extra Battery

Ecoflow Delta 2 Max Smart Extra Battery
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$664.00 - $664.00
$664.00
$664.00 - $664.00
$664.00
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EcoFlow DELTA 2 Max Smart Extra Battery

EcoFlow DELTA 2 Max Smart Extra Battery (2048Wh)

This adds 2048Wh of LFP storage to a DELTA 2, DELTA Max or DELTA 2 Max — doubling a DELTA 2 Max outright, and taking it to 6144Wh if you add two. It connects with a single cable, stacks neatly under or beside the main unit, and appears in the EcoFlow app immediately.

It's the same chemistry as the power stations themselves, rated for 3,000 cycles to 80% capacity, which works out to roughly ten years of daily use. It can also be charged directly by an EcoFlow Smart Generator without a power station attached.

  • 2048Wh Added: Doubles a DELTA 2 Max on its own; two take the system to 6144Wh.
  • Fits Three Generations: Compatible with the DELTA 2 (one extra battery), DELTA Max and DELTA 2 Max (up to two each).
  • 3,000 Cycles to 80%: LFP cells rated for roughly a decade of daily cycling.
  • Plug-and-Play: One cable, no configuration, no need to shut the system down.
  • Stackable Design: Built to sit under or alongside the main unit rather than beside it awkwardly.
  • Charges via Smart Generator: Can be topped up directly by an EcoFlow Smart Generator with no power station connected.
  • 5-Year Full Warranty: The same warranty term as the power stations it pairs with.

Renewable Outdoors is an authorized EcoFlow dealer. Our Lowest Price Guarantee applies to every order — call us at (303) 876-7654 if you're unsure which part fits your setup and we'll check it for you.

DELTA 2 Max Smart Extra Battery Specifications

Rated Capacity 2048Wh
Cell Chemistry LFP (LiFePO4)
Cycle Life 3,000 cycles to 80%+ capacity
Compatibility DELTA 2 (1 extra battery), DELTA Max (up to 2), DELTA 2 Max (up to 2)
Charging Through the connected power station using any of its inputs, or directly from an EcoFlow Smart Generator
Installation Plug-and-play via the extra battery cable
Dimensions 18" × 9" × 11" (464 × 235 × 283mm)
Weight Approx. 42 lbs (19 kg)
Monitoring EcoFlow app, alongside the main unit
SKU EFDELTA2MaxEB
Warranty 5-year full warranty

Adding a battery increases runtime, not output — your power station's inverter still sets how much you can run at once. The extra battery cable differs between the DELTA 2, DELTA Max and DELTA 2 Max, so call us at (303) 876-7654 with your model and we'll make sure you get the right one.

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