EcoFlow DELTA Pro Ultra Inverter + 5* Battery

One DELTA Pro Ultra inverter with five 6kWh batteries stacked on it — 30kWh, the largest battery count sold as a bundle here. Output hasn't moved: still 7.2kW continuous from the single inverter, 10.8kW briefly at peak. At full draw that's about 4 hours 10 minutes; the real appeal is many more hours at a realistic, lighter load. Past this point, the question stops being how many batteries and starts being how many inverters.

Specifications

Specifications as published by EcoFlow for this product.

The ceiling doesn't move

30kWh at the inverter's full 7.2kW output runs for about 4 hours 10 minutes — the most of any bundle in this line, and 50 minutes more than the 4-battery bundle. But it's still one inverter: 7.2kW continuous, 10.8kW for brief peaks, exactly the same figure as the 2-battery bundle. Nothing about five batteries changes what you can draw at once. Recharging from solar scales the same way — around 5 hours 20 minutes from empty at the inverter's 5.6kW input, in full sun.

Where to stop

Five batteries is the practical ceiling for a single-inverter bundle: the system as a whole is designed to scale up to 90kWh, but doing that with more capacity or more continuous power than this means adding further inverters and, for automatic whole-home switchover, a Smart Home Panel 2 — neither of which is part of this bundle. If your outages are long but your loads are light, this is likely as far as a single-inverter setup needs to go. If you need more than 7.2kW running at once, more batteries won't solve that — that's a different bundle entirely.

Common questions about this product