Patent ID: 8209082

Claim:
A tester for measuring battery drain and starter motor current in a vehicle, comprising: a current measuring circuit, comprising: a capacitor that smoothes a current distribution within the circuit; a first interface that connects to a vehicle power source being tested and the capacitor; a second interface that provides an outside communication connection with an analyzing unit; a first processor connected to the second interface, the processor communicates with the second interface and performs analysis and calculations of a data received, the processed data includes measurement of a parasitic battery drain and a high current used by a vehicle starter motor; and a converting unit connected to the first processor and converts a signal received through the first interface from a first form to a second form in order to process the signal received, wherein the analyzing unit is connected to the current measuring circuit through the second interface, and the analyzing unit, comprising: a memory that stores the data retrieved from the current measuring circuit through the second interface; and a second processor that analyzes the data received from the current measuring circuit and provides instructions to the first processor through the second interface.