EcoFlow

DELTA Pro

★ 4.6 · LiFePO4 · Released 2022
$2,699
Check Price on Amazon Official EcoFlow site
EcoFlow DELTA Pro
Capacity
3.6 kWh
Output
3,600W
Solar
1600W
Weight
45kg
Value
$0.75/Wh

SunSee Take

The EcoFlow DELTA Pro delivers 3.6 kWh of LiFePO4 storage with 3600W continuous output. At $0.75/Wh it sits in the mid-range tier. With 3,500 rated cycles, expect 9+ years of daily use. Best kept stationary — this is a home backup unit. Portability index: 80 Wh/kg.

Pros

  • +3600W output
  • +Expandable to 25kWh
  • +Smart home panel
  • +Proven track record

Cons

  • −Older model
  • −Very heavy
  • −Expensive

Best For

Home Backup Off-Grid Living RV & Van Life

Full Specifications

Last verified: 2026-07
Battery Capacity 3,600 Wh
Battery Chemistry LiFePO4
AC Output (Continuous) 3,600W
AC Output (Surge/Peak) 7,200W
Max Solar Input 1600W
Weight 45 kg (99.2 lbs)
Cycle Life 3,500 cycles to 80%
AC Charge Time (0→100%) 2.5h
Price per Wh $0.75
Portability (Wh/kg) 80 Wh/kg
EcoFlow DELTA Pro
3.6 kWh · 3600W · LiFePO4
Check Price → Official EcoFlow site →

How long will the DELTA Pro run common devices?

With 3.6 kWh usable, here's roughly what this covers. See full runtime tables:

Refrigerator CPAP Space Heater Starlink All appliances →

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Specifications sourced from EcoFlow's official product page. MSRP as of 2026-07. Actual prices may vary by retailer and region. SunSee is an independent platform and is not affiliated with EcoFlow.