DIRECTORY / BATTERY & STORAGE
EcoFlow DELTA Pro 3
EcoFlow
Explore EcoFlow DELTA Pro 3 specifications: 4.096kWh LFP capacity, 4,000W AC output, 2,600W solar input and expansion to 12.288kWh.
Full Technical Specifications
Model Number
DELTA Pro 3
Category
Portable Power Stations
Product Type
Battery Chemistry
LiFePO4 (LFP)
Nominal Capacity (kWh)
4.096
Usable Capacity (kWh)
Max Expandable Capacity (kWh)
12.288
Expansion Battery Compatibility
Continuous AC Output (W)
4000
Peak AC Output (W)
AC Charging Input (W)
2900
Max Solar Input (W)
2600
MPPT Channels
2
Solar Input Voltage Range (V)
High-PV: 30–150V DC, 15A, 1600W max; Low-PV: 11–60V DC, 20A, 1000W max
Grid / AC Charging
Yes
AC Output / Backup
Five AC outlets; 4,000W rated AC output; X-Boost supports compatible loads up to 6,000W
EPS / UPS
10ms switchover
App & Monitoring
EcoFlow App; Wi-Fi and Bluetooth connectivity
Smart Meter
Plug-in Solar
Portable power station / home backup system; not an integrated 800W grid-tied plug-in solar battery. Manual transfer switch installation requires a qualified electrician.
UK Availability
Listed on EcoFlow UK; stock status may vary
Warranty
Product Overview
4,096Wh LFP portable power station with 4,000W rated AC output, up to 2,600W solar input across two independent PV inputs, and 2,900W maximum AC charging. Expandable to 12,288Wh with up to two compatible 4,096Wh Smart Extra Batteries. Manufacturer-stated 10ms backup switchover.
Additional Notes
X-Boost 6,000W is a supported-load mode, not the continuous rated output; rated AC output is 4,000W. The two solar inputs have different voltage/current ranges and ratings. EcoFlow states the manual transfer switch requires professional installation by a certified electrician. Warranty duration not entered because it was not confirmed in the captured official specification.
Official Manufacturer Sources
https://uk.ecoflow.com/collections/promotional-items/products/delta-pro-3-portable-power-station
EVIDENCE RATING
High — official EcoFlow UK product specifications
RETAILER
LAST VERIFIED
November 8, 2026
November 8, 2026
High-capacity expandable portable power station and home backup system
Up to two DELTA Pro 3 Smart Extra Batteries or DELTA Pro Smart Extra Batteries; capacity up to 12.288kWh