EF ECOFLOW River 3 Plus Extra Battery EB600 Tested
⚡ Quick Take: This extra battery is a useful add-on for existing River 3 Plus owners, especially for its standalone USB-C utility, but it's less compelling as a primary portable charger. Overview Let’s be blunt: the EF ECOFLOW River 3 Plus Portable Power Station Extra Battery EB600 isn’t a must-have for everyone. It’s a niche…