This International Standard specifies general tests and requirements for the performance of lithium secondary batteries with a nominal voltage of 12 V permanently installed in road vehicles not for propulsion. Replacement of secondary batteries permanently installed in road vehicles not for propulsion are covered by this standard. The following are typical applications that utilize the batteries under the scope of this standard. A power source for the starting of internal combustion engines, lighting, stop & start function, on-board auxiliary equipment and energy absorption for regeneration from braking. The batteries primarily used for propulsion of electric vehicles (EV) including battery electric vehicles (BEV), hybrid electric vehicles (HEV), and plug-in hybrid electric vehicles (PHEV) are not covered by this standard. This standard includes: -electrical characteristics tests methods and requirements -life duration tests method This standard does not include: -dimensions -system communication protocol -safety Note: The safety aspects of the batteries are covered by IEC 63057