Expandable capacity: 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit 6144Wh. Ideal for home backup, caravanning, outdoors or even everyday use.Built to last 6× longer: Get 10 years of daily use until hitting 80% of its original capacity. That’s down to its LFP battery chemistry giving you 3000 cycles.Lower your energy bills: Pair up with a PowerStream microinverter to store your solar energy to use during peak power hours.Huge AC output: With X-Boost mode, get up to 3100W output power to run 99% of home appliances. Power 13 devices at once, including 4 AC outlets.Fastest recharging: World’s fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hoursCapture more energy: 99% MPPT efficiency maximises solar generation during the daytime.Customised in-app energy management: Prioritise solar or AC charging, view input and output power, battery levels and more.5-year warranty