A scalable battery monitoring system from Eagle Eye Power Solutions (Milwaukee, WI) tracks the health of critical battery systems by measuring string voltage and current, jar/cell voltage and impedance, connection resistance and temperature. 
The iPQMS-Pro UPS Battery Monitoring System from Eagle Eye.
The non-intrusive iPQMS-Pro UPS Battery Monitoring System measures critical parameters via clamps connected to the inter-cell connections of the battery system. A single system includes an MPU (Main Processing Unit) and all required cables and clamps for installation. One MPU can connect to (48) cells, however up to ten MPU's can be configured in daisy-chain for monitoring of up to (480) cells. Measured data is communicated via TCP/IP or RS232 back to the included Centroid Snet Battery Management Software.
The iPQMS-Pro records, trends and report data against user-defined tolerances. In the event that a measured parameter is out of tolerance, an outbreak alarm will occur in the software and email/SMS alerts will be generated. Recommended applications include monitoring and predicting the health and performance of UPS cabinets, telecom systems and other backup power systems.
The system comes complete with Eagle Eye's Centroid Battery Management Software package, which allows all battery systems to be monitored 24 hours a day, 365 days a year via a remote computer. Centroid provides real-time battery monitoring and string/cell trending with reporting capabilities. String trending reports provide system resistance, voltage, temperature and voltage/ohms comparison. Cell trending reports provide battery/connection resistance, voltage and temperature. Custom alarm settings can be configured per string.
