DELTA Pro Ultra
Whole-home battery backup. 7,200W output. Up to 90kWh expandable capacity. Automatic transfer in under 20ms.
Authorized EcoFlow Affiliate Partner
Disclosure: Admiral Energy is an authorized EcoFlow affiliate. We may earn a commission on purchases made through our links, at no extra cost to you. Full disclosure →
Why This Is Different
This isn't a portable charger. The DELTA Pro Ultra is a legitimate whole-home battery backup system — a real alternative to a standby generator.
No Fuel, No Fumes
Unlike generators, the DELTA Pro Ultra runs silently with zero emissions. Safe to use indoors (garage or utility closet).
Automatic Transfer
When the grid drops, the Smart Home Panel switches your home to battery in under 20 milliseconds. You won't even notice.
Solar Recharging
Pair with EcoFlow solar panels (up to 5,600W input) for indefinite off-grid capability during extended outages.
Expandable System
Start with 6kWh and expand to 90kWh as your needs grow. Stack up to 15 batteries for a truly independent home.
Smart Home Panel
The Smart Home Panel 2 manages up to 6 circuits — choose exactly which circuits get battery backup.
App Monitoring
Monitor usage, solar production, and battery status from your phone. Set priorities and schedules remotely.
Technical Specifications
Generator vs. DELTA Pro Ultra
Traditional Generator
- Requires fuel (gas/propane) — scarce in emergencies
- CO poisoning risk — must be outdoors
- Loud (65-80 dB)
- Regular maintenance required
- Finite runtime — stops when fuel runs out
DELTA Pro Ultra + Solar
- No fuel — recharges from solar panels
- Zero emissions — safe for indoor use
- Whisper-quiet operation (~30 dB)
- No maintenance — LiFePO4 lasts 10+ years
- Indefinite runtime with solar recharging
Is Whole-Home Backup Right for You?
The DELTA Pro Ultra is a serious investment. We won't push it if a $150 power bank solves your problem. Talk to us first — free, no pressure, honest advice.
We'll assess your home's power needs, roof exposure, and budget to recommend the right solution — even if it's not this one.
Schedule a Free Assessment