What is the maximum short time (1 minute or 1 second) current of the BMV-702 500A shunt? Can the shunt handle a higher cranking current for a short period of time? I'd like to monitor the charge and discharge of my AUX battery, but it is connected to the starter battery for emergency cranking power. This means that there might be a short high current flow (battery CCA 950A) while cracking the engine. Can the shunt handle that or will it burn?