Do you have to wire a gauge to an alternator?
Do you have to wire a gauge to an alternator? The easy way to do that is to wire a gauge for your alternator, which is called an voltmeter. But to get the voltage coming out of the alternator, you really have to connect the voltmeter to the battery and therefore the ignition wiring in the vehicle, since that's what the alternator is feeding. How can I tell if my alternator is charging? The alternator is charging if the battery voltage stays above 13 volts with the engine at 2,000 rpm and all accessories on. Check the alternator gauge. If...