This book is a methodological guide for the design and construction of battery chargers for electric vehicles (EV). An overview of the main technologies used for the production of EV batteries is provided and the most important characteristics that should be considered when making comparisons between the different types are defined. Subsequently, the recommendations present in the regulations that govern the operation of EV battery chargers are presented, according to their characteristics and operating conditions, focusing on the restrictions and recommendations regarding power levels, protection systems, connections and power quality evaluated through parameters such as total harmonic distortion in current and power factor. These last two parameters are discussed in special chapters, which show what the maximum harmonic content should be depending on the type of load, with respect to the recommendations made by the IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems. Likewise, the most important conversion topologies for the construction of chargers are presented, highlighting their disadvantages and benefits compared to this type of applications. Topologies that adapt best suited to the needs of EV chargers are simulated to then analyze their performance. Finally, the present of EVs in Colombia is studied, exalting the potential and development possibilities in this field.