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 ...
VDC Electronics says its BatteryMinder Battery and Alternator Condition Tester provides the condition of a vehicle’s battery and alternator with the simple press of a button. The unit’s multicolored ...
Road & Track: How to Test Whether Your Alternator Is on Its Way Out
AutoGuide: Alternators: How They Work, Why They Fail, and How To Test Them
Alternators: How They Work, Why They Fail, and How To Test Them
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