Expansion Battery for Small Bluetti / Ecoflow

Please read the description carefully. Shipping to Lower 48 USA states via Fedex Ground only. No PO Boxes. No international shipping including Hawaii, Guam, Puerto Rico. Non-USA customers click here. Expand your small Bluetti / Ecoflow power station battery with this COMPLETE KIT, including Ecoflow River! These modular expansion batteries are complete kits that are specially designed for expanding the battery on your small Bluetti, EcoFlow and similar small power stations that can accept a 22v solar input. Loaded with powerful 21700 3.6v 4000mAh Lishen cells. This is a complete kit, including the BMS and charger. This complete kit is not only for small power stations! You can combine multiple modules to make your battery as large as you need. x1 expansion battery will nearly double your EcoFlow River battery! 2x expansion batteries triples your EF River battery! 3x expansion batteries quadruples your EF River battery.    Expansion Battery Specs Voltage:  22v Current:  5A Capaci