EcoFlow DELTA Pro 3 Portable Power Station – 4000W, 4096Wh LiFePO4 Battery (EFDELTAPRO3UK-CBox)

The EcoFlow DELTA Pro 3 (EFDELTAPRO3UK-CBox) is a high-performance portable power station designed for demanding home backup, professional, outdoor and off-grid applications. With an impressive 4096Wh battery capacity and 4000W AC output, it provides substantial energy storage and enough power to operate a wide range of high-demand appliances and equipment.

With 4000W continuous AC output, the DELTA Pro 3 can power demanding appliances such as refrigerators, washing machines, power tools, air conditioners and other compatible equipment. EcoFlow’s X-Boost technology increases supported output to 6000W, while the unit can deliver up to 8000W surge power for compatible devices with high startup requirements.

The generous 4096Wh capacity makes the DELTA Pro 3 suitable for extended backup requirements. It can provide stored energy during power outages or supply electricity in locations without reliable grid access. The system can also be expanded to up to 12kWh by connecting compatible DELTA Pro 3 Smart Extra Batteries, giving users the flexibility to increase their available energy storage as their requirements grow.

The DELTA Pro 3 uses LFP (LiFePO4) battery technology and is rated for approximately 4000 cycles to 80% capacity. EcoFlow also highlights an IP65-rated battery pack, helping protect the battery system against dust, water and demanding environmental conditions. Its battery management system uses EcoFlow’s X-Guard technology to monitor multiple safety parameters and provide active protection.

Fast and flexible charging is another major advantage. The DELTA Pro 3 supports up to 2900W AC charging and can reach 80% charge in approximately one hour. For renewable energy applications, it supports up to 2600W solar input through two solar charging inputs, making it well suited to off-grid use and home solar-storage setups.

The power station also supports multiple charging methods, including AC, solar and car charging. This gives users several ways to replenish the battery depending on whether they are at home, travelling, camping or operating away from the electrical grid.

For emergency backup, the DELTA Pro 3 features a less-than-10ms UPS switchover, allowing it to quickly transition to battery power when mains electricity fails. This can help maintain power to essential equipment such as refrigerators, networking equipment, computers and other compatible electronics during an outage.

Despite its substantial capacity and high output, the DELTA Pro 3 is designed for relatively quiet operation, producing approximately 30dB at 2000W, according to EcoFlow’s specifications. This makes it considerably more suitable for home and residential environments than many traditional fuel-powered generators.

The DELTA Pro 3 provides extensive connectivity, including five AC outlets, two USB-A ports, two 100W USB-C ports, a 12V DC output, DC5521 and Anderson connections. Wi-Fi, Bluetooth and CAN connectivity also allow integration with compatible systems and smart monitoring through the EcoFlow ecosystem.

Whether you’re looking for whole-home backup, reliable power for professional work, energy storage for an RV or off-grid cabin, or a high-capacity portable power solution, the EcoFlow DELTA Pro 3 combines 4096Wh energy storage, 4000W output, expandable capacity, fast charging and durable LFP battery technology in a powerful energy-storage system.