Expandable Capacity. 1-3kWh expandable capacity to grow your storage to your needs. Add on the DELTA 2 extra battery to reach 2048Wh, or add on the DELTA Max Extra Battery to hit 3040Wh. Great for home backup or everyday appliances. Huge AC Output. 1800W AC output means you can power more than 90% of your home appliances. Or, try plugging in up to 15 devices at once. Unlike other brands, DELTA 2 can prevent overloading from devices up to 2200W thanks to X-Boost technology. 7x Faster AC Charging. X-Stream tech means that DELTA 2 charges 7 times faster than the competition. That’s 0–80% in just 50 minutes and 0-100% in 80 minutes with AC input. Go Green without Sacrificing Speed. Plug in portable solar panels and get up to 500W input to charge from anywhere in as fast as 3 hours. Built to Last 6x 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 plus cycles.