Step 5: HOOK UP POWER
Open the hood and locate the car battery. Make sure the power switch on the power inverter is turned off and nothing is plugged into it. Connect the red cable from the power inverter to the positive battery terminal first, and then connect the black cable to the negative battery terminal.
If you are careful about closing the hood you can run the cables through the crack between the hood and car. Otherwise, just leaving the hood popped open can make it look like you are just having car troubles.
Turn on the power switch of the power inverter. Depending on what model you have you should see a green light come on and hear the soft whir of the fan turning on (if something else happens check the alarms listed below). If you have a green light plug in the power cable from the digital projector into the power inverter. Hit the power button on the digital projector. After the projector goes through its warm up cycle and the bulb turns on you will know you are in business. At this point connect your laptop and you are off and bombing.
You may want to bring a piece of cardboard to set in front of the projector as you go through the process of booting up and connecting. This is will allow you to see if it is recognizing your laptop, and you will spare your potential audience from having to watch you boot up windows, find your files, and launch your application.
Warning alarms and signals will vary on different models, but the warnings for the Vector brand inverters are as follows:
- A continuous alarm signals that there is a bad wiring connection. Take this one seriously. One time I tried to ignore it and my inverter starting shooting fire out the back and nearly caught the dashboard of the rental car I was using on fire. Check the connection on the battery to make sure you have a tight connection on both power and ground.
- A less constant audio alarm is a signal that the voltage of the battery is low.
- A red light with no audio alarm is a signal that there is too much power being drawn from the inverter. Try plugging in less stuff.