DIN EN 50342-6:2016-09

The focus of the standard is on lead accumulators ("starter batteries") with a nominal voltage of 12 V, which are primarily used as a source of energy - for starting internal combustion engines - for lighting and also - for additional equipment of vehicles with internal combustion engines. This standard can also be applied for batteries with a nominal voltage of 6 V. The batteries under scope of this standard are used for micro-cycle applications in vehicles which can also be called Start-Stop (or Stop-Start, idling-stop system, micro-hybrid or idle-stop-and-go) applications. During the phases in which the engine is switched off, most of the electric and electronic components of the car need to be supplied by the battery without support of the alternator. In addition, in most cases an additional regenerative braking (recuperation or regeneration of braking energy) function is installed. The batteries under these applications are stressed in a completely different way compared to classical starter batteries. Aside of these additional properties, those batteries need to crank the ICE and support the lighting and also auxiliary functions in a standard operating mode with support of the alternator when the internal combustion engine is switched on. The responsible committee is DKE/K 371 "Akkumulatoren" ("Secondary cells and batteries") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.