BATTERY BACKUP SYSTEMS AND METHODS FOR VEHICLE PHONE SYSTEMS

摘要

A battery backup system for use with vehicle telematics electronics includes a phone module (208) configured for operation by the vehicle telematics electronics (102). The system further includes a battery module (214) configured to provide power to the phone module and a circuit (212) configured to determine that backup power is needed. The circuit causes the battery module to provide the backup power to the phone module for completing an emergency call. The battery module can provide the backup power to the phone module without providing operating power to the vehicle telematics electronics.