Self-stabilizing skateboard

A self-balancing electric skateboard, comprising:

• a board including a frame, a first deck portion disposed at a first end portion of the frame, and a second deck portion disposed at a second end portion of the frame, the first and second deck portions each configured to receive a left or right foot of a rider oriented generally perpendicular to a direction of travel of the board;
• a wheel assembly including a wheel rotatable about an axle, wherein the wheel is disposed between and extends above and below the first and second deck portions;
• a motor assembly powered by a rechargeable battery and configured to rotate the wheel about the axle to propel the skateboard;
• an electronic controller configured to receive orientation information of the board measured by at least one sensor and to cause the motor assembly to propel the skateboard based on the orientation information;
• and
• a battery charging system incorporated into the skateboard and electrically coupled to the battery, the charging system comprising a user-accessible charging port having a ground pin, an input pin, and an identification (ID) pin;
• wherein the charging system of the skateboard is configured to:
• receive a charging voltage from a charger at the input pin of the charging port;
• receive an identification signal at the ID pin of the charging port, wherein the identification signal is configured to confirm legitimacy of the charger by matching an expected identification signal expected by a battery management system (BMS) of the skateboard, and wherein the expected identification signal comprises a selected value pulsed periodically in accordance with a selected duty cycle;
• and
• selectively enable the battery charging system based on the received identification signal.