Patent ID: 8474696

Claim:
A method comprising: measuring a capacitance of a payment device using a capacitance measure fixture and a capacitance meter; measuring a first current level after performing a first test procedure, using a measuring device, wherein the first test procedure comprises inserting the payment device into a payment terminal; measuring a second current level after performing a second test procedure, using the measuring device; and measuring a third current level after performing a third test procedure, using the measuring device, wherein the third test procedure comprises: charging the payment device to a first predetermined voltage, using a charging source; inserting the payment device into the payment terminal; observing the payment terminal for proper operation; and decrementing an output of the charging source by a first predetermined voltage increment, upon determining that the payment terminal does not operate properly; repeating the charging, inserting, observing, and decrementing steps until the payment terminal starts functioning properly, wherein a current level before a voltage level that results in proper function of the device is recorded.