[George Mirza]

The original reason for the second battery came about when Nhra stopped the practice of cooling the cars in the staging lanes with cold water. They allowed a second battery to run extra fans and water pump drives to make up for the cooling. But over time the use of the second battery became blurred and now is used as part of the electrical system. Problem is in a stocker you need a working alternator which makes the ability of the master cutoff switch to kill the car a complicated issue. This is one of those gray areas where every tech guy and division has their on take on it. The master switch on my car has never shut the car off, only the accesories hooked to it. I always started and ran my car with the front battery and alternator. The rear battery was used for cooling only and not tied into the charging system.