Capacity expansion: 2-6 kWh to suit your energy storage needs. Add up to 2 DELTA 2 Max smart batteries to reach 6144 Wh. Ideal for home energy backup, caravanning, outdoor use and also for regular home use.Made to last 6 times longer: Get 10 years of daily use up to 80% of its original capacity. That´s because of its LFP battery chemistry that delivers 3000 cycles.Take it up a notch with the PowerStream Balcony Solar Kit: Pair it with a PowerStream inverter and get a grid-tied solar power solution that powers your home day and night.High AC output power: With X-Boost mode you can have 3100 W of power to power 99% of your household appliances. It powers up to 13 devices at once, plus 4 AC outlets.Faster charging: World´s fastest AC charging speeds with dual X-Stream AC + solar system. Up to 1000W of solar input to charge in just 2.3 hours.Captures more energy: 99% MPPT efficiency that maximises solar generation during daylight hours.generation during daylight hours.Personalised power control from a mobile app: Prioritise solar or AC charging, view input and output power, battery level and many other parameters.5-year warranty