Smart lithium LiFePO4 app developped for the TUNDRA and BOREAL batteries by Ecosolaris.  App shows essential information for the user as well as diagnotic data in a seemlessly integrated format.   Quickly glance at the state of charge (SOC), voltage, current, power along with more detailed information and alarms. Simple to use, just stand within 5m / 15 ft of battery to preview listed batteries and connect.  Can only read one battery at a time.