The described method and system provide a reminder to an electric vehicle user to charge a battery of the electric vehicle to optimize electric-only driving opportunities. The electric vehicle includes a telematics unit, and the vehicle user is associated with a mobile communications device remote from the vehicle. The described technique includes determining a location of the vehicle, comparing the location to a home location of the vehicle user, and retrieving vehicle battery charge state and expected electric only range. If certain conditions are met, the user is prompted via the remote device to plug in the vehicle for charging and/or to alter the vehicle charge profile to achieve full charge in the time remaining.