discontinued
PORTABLE POWER PRODUCT
DELTA 3 1500 specifications and use cases
Current higher-capacity DELTA 3-series option for longer backup windows.
Pricing checked 15 July 2026Last checked 2026-07-15 · verify decisive terms directly
NU
Research profileIndependent data1,536Wh
1229–1382Wh
1,800W
Not separately confirmed
500W max
16.5kg
Manufacturer test conditions apply
Regional warranty applies
BEST FIT
Potentially suitable for
✓ Longer apartment backup
✓ High-energy remote work
COMPROMISES
Important limitations
• Regional specifications, bundles and promotions can change this price
• EcoFlow has discontinued this exact model in favour of the newer DELTA 3 Plus -- confirm current new-unit availability before assuming this specific model is still sold new
BEFORE YOU COMPARE
Specification interpretation
Usable energy
The displayed range models 80–90% of nominal capacity; actual runtime changes with load, temperature and conversion.
Output
Plan around continuous output; boost modes are load-specific
Charging
Fast-charge mode varies. Weather and panel dependent.
Expansion
Extra-battery ecosystem varies by model
Service
Service, registration and transferability vary by market
Reported user complaints
EcoFlow has discontinued the DELTA 3 1500 in favour of the DELTA 3 Plus (1,024Wh, similar 1,800W output, around $569) -- confirm current availability and consider the successor before assuming this exact model is still purchasable new. The DELTA 3 Plus successor has drawn some reports of its internal cooling fans cycling on and off erratically under heavy load. These are aggregated patterns from public reviews and independent testing as of 2026-07-15 -- not independently verified by Nomad Utilities and not necessarily representative of every unit. Read current reviews directly before deciding.
COMMON QUESTIONS
Frequently asked questions
The DELTA 3 1500 lists 1,536Wh nominal capacity, but modelled usable energy is 1229–1382Wh once inverter conversion, temperature and standby draw are accounted for. Plan around the usable figure, not the nominal one, when sizing a load.