摘要 |
The invention relates to an energy storage system for the electrical energy supply of consumers (V1, V2) in a vehicle, in particular a motor vehicle, comprising a first power grid (E1) having a first energy store (B) and a second power grid (E2) having a second energy store (C), wherein the first and second power grids (E1, E2) are electrically coupled such that electrical energy can be led from the first power grid (E1) to the second power grid (E2) to replenish the second energy store (C). The energy storage system according to the invention can be operated such that it is detected when a number of conditions are fulfilled, wherein the number of conditions comprises at least the condition that an external charging device is connected to the first power grid (E1) to charge the first energy store (B) and, in the event the number of conditions are fulfilled, the second energy store is replenished. |