Serious Whole-Home Backup Power for Large Loads & Emergencies

• 3072Wh Capacity – long-lasting backup power for outages, home use, and off-grid needs
• 3600W AC Output / 7200W Surge – powers large appliances and demanding devices
• X-Boost up to 4600W – supports dryers, lawnmowers, steamers, and more
• Fast Recharge in 89 Minutes – 0–80% via wall outlet or generator charging
• 4 Charging Methods – AC, solar, generator, and multi-source charging
• 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 daily use
• Advanced BMS Protection – 24/7 battery safety management
• Class-B Certified Safety – trusted performance and protection
• Smart App Control – battery monitoring, storm alerts, savings modes, schedules
• Up to 5-Year Warranty

Why Choose DELTA 3 Ultra

The EcoFlow DELTA 3 Ultra is a premium high-capacity portable power station designed for whole-home backup, RV setups, workshops, and demanding energy users. With 3072Wh capacity, 3600W output, fast charging, and home connection compatibility, it delivers dependable large-scale backup power without the noise of gas generators.