The EF ECOFLOW River 3 Plus Portable Power Station Extra Battery EB300 is the perfect companion for outdoor adventures, emergencies, or any situation where reliable power is a must-have. This expansion LiFePO4 (LFP) battery boasts a capacity of 286Wh, providing you with the extra power you need to keep your devices charged and ready to go. With a 10-year lifespan, you can trust that this battery will be by your side for years to come. Equipped with a built-in 140W USB-C port, the EF ECOFLOW River 3 Plus Extra Battery EB300 allows for seamless charging and discharging of your devices. Whether you need to power up your smartphone, tablet, camera, or any other USB-C compatible device, this power station has got you covered. The USB-C port provides fast and efficient charging, ensuring that your devices are ready to use whenever you need them. The beauty of the EF ECOFLOW River 3 Plus Extra Battery EB300 lies in its versatility. This battery can be used independently or paired with the River 3 Plus Portable Power Station for even more power on the go. Whether you're camping, hiking, or facing a power outage, this expansion battery ensures that you have the backup power you need to stay connected and powered up. Say goodbye to worries about running out of battery and hello to a reliable and durable power solution with the EF ECOFLOW River 3 Plus Extra Battery EB300.