Annual report pursuant to Section 13 and 15(d)

Principal activities and organization (Details)

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Principal activities and organization (Details)
12 Months Ended
Dec. 31, 2016
Hong Kong Highpower Technology Co., Ltd ("HKHTC") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Jul. 04, 2003
Shenzhen Highpower Technology Co., Ltd ("SZ Highpower") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Oct. 08, 2002
Springpower Technology (Shenzhen) Co., Ltd ("SZ Springpower") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Jun. 04, 2008
Ganzhou Highpower Technology Co., Ltd ("GZ Highpower") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Sep. 21, 2010
Icon Energy System Co., Ltd. ("ICON") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Feb. 23, 2011
Huizhou Highpower Technology Co., Ltd ("HZ HTC") [Member]  
Subsidiary or Equity Method Investee [Line Items]  
Date of incorporation Mar. 08, 2012