Franklin Wireless R772 / R774 / R775 Rechargeable Li-Polymer Battery 1800mAh Rechargeable Li-Polymer Battery compatible with R772 / R774 / R775 Hotspot Router (C Spire) Made by original R772 / R774 / R775 Manufacturer Portable Powered Battery (Replaceable,Rechargeable,Li-Polymer Battery) 1800 mAh Device is not included