In general, it is technically feasible to convert from a lead-acid battery to a lithium-ion battery. However, the voltage behavior differs between these two battery technologies. Therefore, either the lithium battery needs to be fully integrated into the vehicle's CAN bus system or a charge indicator must be attached to the lithium-ion battery to accurately display its actual state of charge. If communication between the lithium-ion battery and the vehicle via the CAN bus is not possible, additional organizational measures must be taken to ensure safe operation. For example, the battery can be equipped with a horn that emits an audible warning signal when the battery reaches a critical state of charge, alerting the driver before the battery shuts off.