Expand your EcoFlow DELTA Pro's capacity with the DELTA Pro Smart Extra Battery. This 3600Wh battery increases the total capacity to 10.8kWh when paired with two extra batteries. It supports convenient recharging through various methods including AC, solar, Smart Generator, and EV charging. Built with a long-lasting LFP battery, it ensures durability and efficiency. Note: This product is exclusively for the EcoFlow DELTA Pro portable power station.