Anker SOLIX E10 vs EcoFlow DELTA Pro Ultra: Which Whole-Home Backup Fits Your Home?
Both are excellent whole-home battery systems, and we install both. But they fit different homes. Here's how we help customers choose - honestly, since we're an authorized dealer for both brands.
Head to head
| Anker SOLIX E10 | EcoFlow DELTA Pro Ultra | |
|---|---|---|
| Starting price | $4,299 (6kWh) | $4,099 (6kWh) |
| Output per unit | 7.68kW (10kW turbo, 90 min) | 7.2kW |
| Max system | 22.8kW / 90kWh | 21.6kW / 90kWh |
| Motor starting | 155-275 LRA (starts 5-ton AC) | Strong, lower LRA rating |
| Solar input | 9-27kW | 5.6-16.8kW |
| Whole-home switch | 200A Power Dock, 12 circuits | Smart Home Panel 2, 12 circuits |
| Outdoor install | Yes - NEMA 4, -4°F to 131°F | Indoor preferred |
| Generator option | Tri-fuel Smart Generator 5500 (NG/propane/gas) | Dual-fuel Smart Generator 3000 |
| Portability | Fixed install (trolley optional) | Wheeled - can leave home for events/RV |
| Ecosystem | Anker app, Storm Guard weather auto-charge | EcoFlow app + broad portable lineup |
Choose the E10 if...
- You want a permanent, set-and-forget whole-home system - it lives outside in any weather and switches automatically in under 20ms
- You have or plan lots of solar (up to 27kW input)
- You need to start big 240V motors - central AC, well pump - reliably
- You want natural gas or propane as an unlimited backup fuel via the tri-fuel generator
Choose the DELTA Pro Ultra if...
- You want your backup power to double as portable power - wheel it out for job sites, events, or the RV
- You're already in the EcoFlow ecosystem (DELTA, RIVER, accessories)
- You prefer an indoor garage install with the Smart Home Panel 2
Bottom line: for a dedicated whole-home backup that you never think about, we usually recommend the Anker SOLIX E10 - most customers land on the 12kWh + Power Dock configuration at $7,799. If flexibility and portability matter, the DELTA Pro Ultra is unmatched.
Still deciding? Run your numbers in our power calculator or get a free system design - our licensed electricians install both brands across Washington and will recommend what actually fits your panel, loads, and budget.