How To Connect Switch To Battery. A fused switch will maintain current to your alarm on-board computer central locking system and stereo but still prevent your car from starting - the current generated when attempting to start the vehicle will blow the fuse and shut down all electrical. Battery generators are great for backup power if you know how to connect them.
Therefore first remove the connection between the battery and the starter solenoid. Probably the LED wont light up until you wind the resistor down a way. A cutoff switch is installed on or near the battery and is used primarily to prevent battery charge depletion and for long-term storage.
Connect the second new red battery cable to the common connection point labeled COM and connect the other end to the starters wiring postBattery Management Wiring.
Here is what is in the box -The solenoid has two large bolts connections and then. The small drop comes from the Operation voltage of one of the ICs it needs to be 35V min and the larger voltage drop eats into the battery life. A fused switch will maintain current to your alarm on-board computer central locking system and stereo but still prevent your car from starting - the current generated when attempting to start the vehicle will blow the fuse and shut down all electrical. Connect the 9V battery and your multi meter in series also and measure the current as you wind the resistor down from 1K.
