Expandable Whole-Home Backup Power with Smart Circuit Control

• 3072Wh Capacity – dependable backup power for outages, home use, and large energy needs
• Expandable from 3kWh to 11kWh – scale your system for longer runtime and bigger loads
• 3600W AC Output / 7200W Surge – powers major appliances and demanding equipment
• X-Boost up to 4600W – supports dryers, lawnmowers, steamers, and more
• Ultra-Fast Charging – 0–80% in as fast as 48 minutes with solar + generator dual charging
• 6 Charging Methods – AC, solar, generator, car charging, dual charging, and multi-source charging
• Smart Output Priority – choose which circuits stay powered via the app
• 2 Home Connection Options – manual transfer switch or inlet box ready
• 10ms UPS Backup – ideal for NAS systems, routers, PCs, and servers
• Whisper Quiet Operation – as low as 25dB at 600W
• LFP Battery Technology – built for up to 10 years of reliable use
• Advanced BMS Protection – 24/7 battery safety management
• Class-B Certified Safety – trusted protection and performance
• Smart App Control – monitor battery, savings, storm alerts, and schedules
• Up to 5-Year Warranty

Why Choose DELTA 3 Ultra Plus

The EcoFlow DELTA 3 Ultra Plus is a premium expandable portable power station built for whole-home backup, off-grid setups, RV living, and users who need maximum flexibility. With 3072Wh capacity, expandable storage up to 11kWh, smart circuit priority controls, and ultra-fast charging, it delivers advanced backup power for serious users.