Additional Smart Battery for EcoFlow DELTA3, DELTA3 Plus, 1024Wh

The EcoFlow DELTA 3 Smart Extra Battery is an additional 1024Wh lithium iron phosphate (LFP) battery designed to expand the runtime of EcoFlow DELTA3 and DELTA3 Plus power stations. It provides compact, stackable capacity to double or increase the existing energy storage for home backup, recreational vehicles, outdoor activities and emergency use. The unit integrates with the power station through a dedicated extra battery port and can be monitored via the EcoFlow app or the built-in status screen.

Advantages

This extra battery offers 1024Wh of additional capacity in a compact form factor that is about one third smaller than previous Delta 2 modules, allowing secure stacking on the power station to save space. Its LFP chemistry delivers a long service life rated for roughly 4000 full cycles to 80% capacity, equating to an estimated 10-year lifespan under typical use. The battery supports convenient recharging from AC outlets, compatible portable solar panels and EcoFlow smart generators, and it can be monitored and controlled remotely using the EcoFlow app.

Suitable for

Key specifications

How to use

No complex setup is required: connect the DELTA 3 Smart Extra Battery to the dedicated extra battery port on your DELTA3 or DELTA3 Plus power station. Once attached, the power station will recognise the additional capacity. Recharge the extra battery by using the main unit's AC input, by connecting compatible solar panels, or with an EcoFlow smart generator. Use the built-in screen or the EcoFlow app to check battery percentage, remaining run time and charging status.

Recommendations

For reliable long-term performance, store the battery in a cool, dry place and avoid prolonged exposure to high temperatures. Charge the extra battery periodically if left unused for extended periods. When stacking and transporting, ensure the unit is securely attached to the power station and protected from heavy impact.