如今，所谓的插电式混合动力汽车和全电动汽车越来越受到人们的青睐，因为它们可以减少污染，就像纯内燃机一样。然而，它们至少有一个共同的特点：电能储存在专用电池组中，然后用于电动机。虽然这项技术目前仍在大力发展，相关技术标准也在不断发展，但很明显，充电能量是利用现有的电源基础设施提供的。同时，这意味着对充电器（车载充电器和车外充电器）都有一定的要求。

Nowadays, so called plug in hybrid as well as fully electric vehicles are catching more and more attraction triggered by the reduction of pollution as it is normally happening with pure combustion engine. Nevertheless, there is at least one feature that is common to all of them electric energy is accumulated in dedicated battery pack and it is used in electric motors afterwards. Although this technology still undergoes heavy development nowadays, so do also relevant technical standards, it is clear that charging energy is provided utilizing existing mains infrastructure.

Hand in hand, it implies certain requirements put on chargers, those installed On Board as well as on those installed Off Board.