DIRECTORY / BATTERY & STORAGE
EcoFlow DELTA 3
EcoFlow
Compare EcoFlow DELTA 3 specifications: 1.024kWh LFP capacity, 1,800W AC output, 500W solar input, UPS backup and expansion to 5kWh.
Full Technical Specifications
Model Number
DELTA 3
Category
Portable Power Stations
Product Type
Battery Chemistry
LiFePO4 (LFP)
Nominal Capacity (kWh)
1.024
Usable Capacity (kWh)
Max Expandable Capacity (kWh)
5
Expansion Battery Compatibility
Continuous AC Output (W)
1800
Peak AC Output (W)
AC Charging Input (W)
1500
Max Solar Input (W)
500
MPPT Channels
1
Solar Input Voltage Range (V)
11–60V DC
Grid / AC Charging
Yes
AC Output / Backup
Four AC outlets; 1,800W total rated output; X-Boost supports compatible loads up to 2,400W
EPS / UPS
Less than 10ms
App & Monitoring
EcoFlow App; time-of-use and storm warning features
Smart Meter
Plug-in Solar
Portable power station; not an integrated grid-tied microinverter or 800W plug-in solar battery system
UK Availability
Listed on EcoFlow UK
Warranty
5 years
Product Overview
1,024Wh LFP portable power station with 1,800W rated AC output, 500W maximum solar input through one DC input, 1,500W AC charging and expansion options up to 5kWh with compatible EcoFlow extra batteries. Includes app-based time-of-use and storm warning features.
Additional Notes
EcoFlow UK presents DELTA 3 and DELTA 3 Plus on a shared product page. The DELTA 3 has one 500W solar input; do not use the DELTA 3 Plus two-input solar specification for this model. X-Boost is not the same as continuous rated output. Product is not an integrated grid-tied microinverter system.
Official Manufacturer Sources
https://uk.ecoflow.com/products/delta-3-series-solar-generator-pv400w
EVIDENCE RATING
High — official EcoFlow UK product specifications
RETAILER
LAST VERIFIED
November 8, 2026
November 8, 2026
Portable power station with expandable home backup capability
EcoFlow DELTA 3 Extra Battery; EcoFlow DELTA 2 Extra Battery; DELTA 2 Max Extra Battery; DELTA Pro 3 Extra Battery (manufacturer compatibility listing; verify exact configuration before purchase)