Female Connection Device, Battery System, Electric Battery Pack and Electric Battery-Related Device

A female connection device for an electric battery system, wherein the female connection device is designed to releasably receive a male connection device of the battery system in an electrically connecting manner in a receiving direction of the female connection device, the female connection device comprising:

• an outer contact body which has an outer back region and two outer contact tongue regions that protrude opposite one another from the outer back region, wherein the two outer contact tongue regions are configured to make electrical contact with the received male connection device at a distance from the outer back region, wherein the outer back region and the two outer contact tongue regions together form an outer body portion of the outer contact body;
• and
• an inner contact body which has an inner back region and two inner contact tongue regions that protrude opposite one another from the inner back region, wherein the two inner contact tongue regions are configured to make electrical contact with the received male connection device at a distance from the inner back region, wherein the inner back region and the two inner contact tongue regions together form an inner body portion of the inner contact body,
• wherein the outer body portion and the inner body portion are arranged in a nested manner so as not to be in contact with one another or so as to only be in contact with one another at the inner back region and at the outer back region.