Disconnecting the battery while the engine is running isn’t a valid test for alternator function and may damage sensitive electronic parts. Instead, use a common voltmeter and the following test ...

How Long Do Alternators Last? It’s difficult to predict how long your alternator will last because many factors affect the life of an alternator.

In addition, the high electrical output of the alternator function of the combined starter-alternator, up to 2.5 kW at 14 Volt and up to 4 kW under 42 Volt, will allow vehicle manufacturers to ...