High Energy Li-ion Batteries Combined with Compact Power Systems for Outdoor BTS: Technical and Economical Decision making from Field Test to Deployment

This paper details the decision criteria and process to implement an innovative power system including new generation of rectifiers developed by Delta in combination with Saft Li-ion batteries in a major operator´s mobile telecom network. This includes technical aspects such as application needs, product design and optimization, and validation of battery and rectifier choices. The paper describes the implementation of field tests and discusses the results of the trials. With the operator´s major criterion being economical, the paper also includes a life cycle cost analysis of the battery/rectifier system in comparison to conventional systems equipped with VRLA. In conclusion, future perspectives of power system integration and lithium ion batteries are outlined