【Extra battery capacity】Add on to your DELTA 2 to expand capacity to 2048Wh. Easy setup to meet a wide range of needs from home backup power to outdoor use. 【Lasts years on end】As a portable battery with an LFP battery chemistry, it lasts years on end with regular use. 3000+ cycles to be precise. 【Charge your way】The DELTA 2 Extra Battery allows you to charge fast with multiple methods. Choose AC outlets, car outlets, solar panels or even our Smart Generator. With that, you can go for 0-80% in 80 mins. 【Power pretty much anything】With a 1800W output & 13 outlets when paired with DELTA 2, you can power 90% of home appliances. 【Control and monitor】With an onboard LCD screen and an EcoFlow app you can check all your essentials. Remaining charge, hours remaining at current output, and a whole lot more.