The IEC 62133 standard has replaced relevant UL standard for the certification of battery products in IECEE CB system, which makes it step onto a higher position in the system. After the transition, this standard will completely replace UL 1642 Standard, which will turn to be a standard for the components in the product certification within the IECEE CB system. From Oct 26, 2010, batteries with CB certificate under Standard UL 1642 shall go through extra tests to ensure their conformity with Standard IEC 62133. From June 27, 2011, CB certification for battery products shall be conducted in conformity with Standard IEC 62133 only. The change of battery standard will facilitate the implementation of IECEE CB Scheme in a global range.