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Ecoflow Delta Pro Smart Extra Battery

Ecoflow

$1,099.00
$1,999.00 $1,099.00
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Product Details

The EcoFlow DELTA Pro Smart Extra Battery transforms the DELTA Pro from a capable large-format station into a whole-home backup system — expanding from 3600Wh to 7200Wh with a single connection. Add a second for 10,800Wh: enough for 24+ hours of whole-home essential backup including refrigerators, medical devices, HVAC fans, lighting, and communications.

Each extra battery connects to the DELTA Pro's expansion port and charges simultaneously via any input source — solar, AC, car, or smart generator. With 1600W solar input, the full 7200Wh system recharges in approximately 4.5 hours from EcoFlow 400W panels, while AC wall charging fills the combined system in under 3 hours. The BMS manages charge balancing between the main unit and batteries automatically, with no user configuration required.

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
  • One extra battery: 3600Wh → 7200Wh. Two extra batteries: 3600Wh → 10,800Wh
  • 10,800Wh combined system provides 24+ hours of whole-home essential circuit coverage
  • LFP chemistry: 3,500+ cycles, matched to DELTA Pro's own battery specification
  • Charges simultaneously via AC, solar, DC, or smart generator input — no separate charging step
  • EcoFlow Smart Home Panel 2 compatible with full extra battery configuration
  • BMS-managed automatic charge balancing — no user setup or monitoring required

  • While we offer shipping for EcoFlow products to Hawaii and Alaska, EcoFlow does not provide after sales services in those regions. Therefore we kindly recommend buying a CPS Accidental Warranty when shipping to Hawaii or Alaska.

    Ecoflow Delta Pro Smart Extra Battery

    This add-on battery connects with a DELTA Pro to double total capacity to 7200Wh. Connect two of them to DELTA Pro for a staggering 10.8kWh to use off-grid. 

    Recharging from solar panels, AC outlets, EV charging stations, or our Smart Generator is easy. Plug the Extra Battery into DELTA Pro and they will recharge and discharge in tandem.

    The Extra Battery can be integrated to your home’s wiring when connected to DELTA Pro. These battery units become part of your home’s peak shaving and emergency power solutions.

    This Extra Battery can recharge directly from EcoFlow’s Smart Generator outdoors, giving you another option for emergencies.

    Get all the same info about battery percent, remaining recharge time, hours left, and more on the built-in screen. You can check the battery’s status anywhere from the EcoFlow app.

     

    Charge anytime, anywhere.

    DELTA Pro’s Smart Extra Battery benefits from all the charging methods DELTA Pro has, including 6500W MultiCharge. That means you can charge anytime, anywhere as longas your extra battery is connected to DELTA Pro. Once connected, they’ll charge/discharge in unison, keeping the battery percent level across both units.

     

    Note: This product is exclusively for the Delta Pro Portable Power Station.

  • 1x DELTA Pro Smart Extra Battery
    1x DELTA Pro Extra Battery Cable
    1x Handle Cover
    1x User Manual

  • Model Name
    DELTA Pro Smart Extra Battery

    Capacity
    3600Wh

    Battery Chemistry
    LFP

    Battery Cycle Life
    6,500 cycles to 50% capacity, 3,500 cycles to 80% capacity

    Shelf Life
    1 year (after a full charge)

    Dimension
    25 x 11.2 x 16.4 in / 63.5 x 28.5 x 41.6 cm

    Weight
    Approx. 84lbs / 38kg

    Warranty
    5 years

This item comes with a 5-Year Factory Warranty from EcoFlow. A 3-Year Standard Warranty is included automatically from the date of original purchase, covering defects in materials, workmanship, and performance under normal use. An additional 2-Year Extended Warranty is available at no extra charge — activate it by downloading the EcoFlow App, logging into your EcoFlow account, and registering your product using the unit serial number within the standard warranty period. This gives you up to 5 years of total factory warranty coverage. Exclusions apply for damage caused by misuse, unauthorized modification, disassembly, or exposure to excessive heat or liquids. For warranty claims: support@ecoflow.com or 1-800-368-8604.