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Wireless power transfer technology is one of the new emerging technologies for research. This paper presents an overview of wireless power transfer (WPT) technology for the application of unmanned aerial vehicle charging. They are available in different size with wide range capabilities. The major drawback of UAV is limited battery capacity. Increasing the battery system is not a permanent solution because of their limiting weight factor. Hence UAV charging wirelessly with a resonant inductive power transfer. Which is done through wireless power transfer.