WAVE 3 Add-on Battery is a 1024Wh auxiliary battery designed to extend the runtime of the EcoFlow WAVE 3 portable air conditioner. This battery provides up to 8 hours of continuous operation without the need for a power outlet, making it ideal for camping, travel, field work, or as a backup power source at home. It uses LiFePO₄ battery technology with a lifespan of over 4000 charge cycles at 80% capacity, ensuring long-term and reliable performance. The battery is designed for seamless connection with the WAVE 3 unit, allowing for easy use and portability. In addition, it supports fast charging via AC, solar panels, car charger, or EcoFlow alternator charger, offering flexibility in various situations. It also features USB-A and USB-C ports for charging mobile devices, making it even more practical for everyday use.