Vehicle electrical system

A vehicle electrical system comprising:

• a battery;
• a customer connection point;
• a switch electrically connected in series between the battery and the customer connection point;
• a computer communicatively coupled to the switch;
• and
• a transceiver communicatively coupled to the computer;
• the computer being programmed to:
• instruct the switch to open in response to a state of charge of the battery decreasing below a charge threshold;
• receive an input from a user selecting a first time limit, wherein the input contains a selection of the first time limit from a range presented to the user, the range extending from a smallest time to a greatest time;
• instruct the transceiver to transmit a first message to a remote server upon determining that the state of charge of the battery will decrease below the charge threshold in less than the first time limit from a current time;
• and
• instruct the transceiver to transmit a second message to the remote server upon determining that the state of charge of the battery will decrease below the charge threshold in less than a second time limit from the current time, wherein the second time limit is less than the smallest time.