EcoFlow Delta Pro Power Station with 3600W total AC Output The EcoFlow DELTA Pro is the next leap in portable power technology, offering you power security and independence, wherever you are with a 3.6kWh LiFeP04 long lifecycle battery that can scale to 7.2kWh or 10.8kWh via the extension ports. From large caravan / RV power to extreme blackouts that last for days on end, DELTA With that, you're covered for any situation. A single DELTA Pro unit packs a 3600W AC output at 240V, which can be expanded up to 4500W with X-Boost technology. Power heavy-duty devices at home, outdoors, or at work. You can even pair two units together to achieve 7200W.