Emergency power for your household: Delta Max can be expanded to up to 6kWh with smart add-on batteries, so your home is powered in any emergency. Dual fast charge: Charge your Delta Max from 0-80% in just 65 minutes. Or achieve up to 3400W of power by combining AC charging with the EcoFlow Smart Generator. Power multiple appliances: Looking for a solution to power powerful appliances like your fridge and dryer at the same time? With the X-Boost feature, Delta Max handles appliances up to 3400 W with ease. Portable solar generator: Stay powered no matter what. The Delta Max can be connected to up to 2 EcoFlow solar panels, each rated at 400 W, for a maximum solar charging speed of 800 W. The solar charging cable is not supplied with this product.