Expand the capacity of your DELTA 2 Max with an extra 2046Wh. This Smart Extra Battery allows for expandable capacity, offering 2-6kWh to suit your energy storage needs. You can connect up to two DELTA 2 Max Smart Extra Batteries to reach a total capacity of 6144Wh, making it perfect for home backup, caravanning, outdoor adventures, or daily use. Built with LFP battery chemistry, it offers durability with up to 10 years of daily use until reaching 80% of its original capacity, supported by 3000 cycles. It comes with a 2-Year Warranty.