Yes, with system expansion. The base unit delivers 4kW of continuous output, and when expanded the system reaches up to 12kW, which is sufficient to run a 3-ton central AC unit. Single-unit operation is better suited to window units and smaller loads. If central HVAC is your primary goal, plan for at least one expansion module.

Using X-STREAM AC charging at up to 7,000W, the base 4,096Wh unit can reach a full charge in roughly 45 minutes to 1 hour under ideal conditions. Actual charge time will vary based on available circuit capacity and outlet configuration. This is one of the fastest AC recharge speeds available in this class of power station.

Yes. Because the DELTA Pro 3 operates on stored electrical energy rather than combustion fuel, it produces no exhaust emissions and is safe for indoor and enclosed use. The IP65 rating also protects against dust and water ingress. Its X-Quiet mode operates at approximately 30 dB, comparable to a quiet room.

UPS stands for Uninterruptible Power Supply. When the grid goes down, the DELTA Pro 3 switches to battery power in 10 milliseconds, which is fast enough that computers, NAS drives, routers, and most medical devices don't register an interruption. Without a UPS, even a fraction of a second gap can cause computers to shut down or sensitive equipment to reset.

The system supports expansion up to 48kWh total capacity and up to 12kW of combined output. The exact number of compatible expansion batteries depends on which EcoFlow expansion modules are used. Reach out to our team before ordering if you're planning a specific expanded configuration and want to confirm compatibility.

EcoFlow rates the DELTA Pro 3 for 4,000 or more charge cycles to 80% capacity. LiFePO4 (LFP) chemistry is a specific type of lithium battery known for greater thermal stability and a longer rated cycle life compared to standard lithium-ion cells. For a backup power application where the battery may cycle frequently, LFP chemistry is a meaningful advantage.