Patent ID: 9728983
Date: 2017-08-08
CPC Classifications: H02J

Claim:
1. A method comprising: sending, by a charger device, a message to a mobile device over a bidirectional communication channel indicating that the charger device supports high wattage charging; receiving, by the charger device and based on sending the message to the mobile device, a response message from the mobile device indicating that high wattage charging is supported by the mobile device; sending, by the charger device and based on receiving the response message, a controlled output voltage and an output current to the mobile device over a cable connected between the charger device and the mobile device, receiving, by the charger device, an input voltage measurement from the mobile device based on sending the controlled output voltage; calculating, by the charger device, a resistance of the cable based on a difference between the controlled output voltage and the input voltage measurement; and adjusting, by the charger device, at least one of the controlled output voltage or the output current of the charger device based on the resistance of the cable not satisfying a resistance limit,