User device vehicle charger strategy

A method for charging user devices, comprising:

• estimating a depletion amount of energy required to charge a plurality of user devices connected to a plurality of device ports of a vehicle based on a sum of state of charge (SoC) of device batteries of the plurality of connected user devices;
• responsive to an expected SoC of a LV battery of the vehicle after providing the depletion amount of energy exceeding a calibrated threshold amount of energy of the LV battery, charge the connected plurality of user devices during key off;
• and
• otherwise, utilizing an engine start/stop schedule defining a time to start an engine of the vehicle and a duration of run time for the engine to generate additional energy to charge the connected plurality of user devices to ensure the LV battery remains above the calibrated threshold amount of energy.

A non-transitory computer-readable medium comprising instructions for charging a user device that, when executed by one or more controllers of a vehicle, cause the one or more controllers to perform operations including to:

• estimate a depletion amount of energy required to charge a plurality of user devices connected to one or more device ports of a vehicle based on a sum of state of charge (SoC) of device batteries of the plurality of connected user devices;
• responsive to an expected SoC of a LV battery of the vehicle after providing the depletion amount of energy exceeding a calibrated threshold amount of energy of the LV battery, charge the plurality of connected user devices during key off;
• responsive to the expected SoC exceeding the calibrated threshold amount of energy and the vehicle being unauthorized to start an engine of the vehicle, charge the plurality of connected user devices during key off until the LV battery reaches the calibrated threshold amount of energy;
• and
• otherwise, utilizing an engine start/stop schedule defining a time to start the engine of the vehicle and a duration of run time for the engine to generate additional energy to charge the plurality of connected user devices to ensure the LV battery remains above the calibrated threshold amount of energy.