ECOFLOW DELTA Pro Ultra Battery 6kWh expansion battery

Increase your home backup storage with the ECOFLOW DELTA Pro Ultra Battery 6kWh expansion battery. This rechargeable battery pack provides 6,144Wh of capacity for a compatible DELTA Pro Ultra inverter. It is designed for people who want more stored energy for outages and home backup. Adding battery capacity can help extend runtime, although actual results depend on the appliances you use and the power they require.

Add More Energy When You Need It

Each battery contributes approximately 6kWh of storage. A compatible single-inverter system can support up to five battery packs, giving a maximum capacity of 30kWh. Larger system configurations may allow even more storage when built with the required equipment and within official limits. This expandable design lets you start with a suitable capacity and add more later as your energy needs change.

The ECOFLOW DELTA Pro Ultra Battery 6kWh is made to connect with the DELTA Pro Ultra inverter. It cannot operate as an independent power station. Before purchasing, make sure your inverter generation, battery cables, and other accessories are compatible. Follow the manufacturer’s instructions for connection, stacking, and installation.

Long-Life LFP Battery Technology

The battery uses lithium iron phosphate cells, often called LFP. This chemistry is valued for durability and reliable everyday energy storage. Under specified testing conditions, the pack is rated for 3,500 cycles while retaining at least 80% of its original capacity. Lifespan depends on usage and temperature.

With extra stored energy, you may be able to power essential devices for longer during an outage. These can include lights, communication equipment, computers, and selected household appliances, provided your system supports their power requirements. Check each device’s wattage and estimate how long you need backup power before deciding how much storage to add.

Compact, Stackable System Design

The battery measures approximately 660 × 455 × 204 mm and weighs around 50.7 kg. Its stackable shape helps keep a multi-battery setup tidy, but you should prepare a stable surface and enough room for safe handling. The IP54 protection rating applies when all ports are properly covered. Keep connectors protected and use only approved cables and accessories.

Choose the ECOFLOW DELTA Pro Ultra Battery 6kWh to increase the capacity of a compatible backup system in a flexible way. More storage can offer greater peace of mind during longer outages. Confirm compatibility and system limits before ordering, and have installation completed according to the product instructions.