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Product Warranty Provisions (Details Textual)
12 Months Ended
Dec. 31, 2019
Product Warranty Provisions [Abstract]  
Standard product warranty, description The Company maintains a policy of providing after sales support for certain of its new EV and LEV battery products introduced since October 1, 2015 by way of a warranty program. The limited cover covers a period of six to twelve months for battery cells, a period of twelve to twenty seven months for battery modules for light electric vehicles (LEV) such as electric bicycles, and a period of three years to eight years (or 120,000 or 200,000 km if reached sooner) for battery modules for electric vehicles (EV).