alternators Archives - UnderhoodService
Alternators and Ripple Voltage

The alternator produces an AC current that must be converted into DC current by way of a rectifier.

Battery Charging and Diagnostics

Here are six tips to use when diagnosing a vehicle with a dead battery. 

Starters & Alternators – Tips For Diagnostics

Here are 4 tips to follow when replacing starters and alternators.

How Speed, Load and Slip Affect Voltages

Modern, computer-controlled charging systems found on today’s vehicles need proper test procedures – no guesswork allowed.

VIDEO: ACDelco Starter And Alternators

High underhood temps, increased power demands and vibration can damage alternators or starters. Sponsored by ACDelco.

Modern Battery and Alternator Testing Methods

Old methods of testing a battery and alternator aren’t appropriate today. Do the job right to get the right results.

DENSO Launches PowerEdge Heavy-Duty J180 Mount Alternator

DENSO’s PowerEdge brand has grown to 18 part numbers of replacement starters and alternators.

WAI Releases Complete Line Of Starters

WAI Global features its complete line of starters ideal for automotive.

VIDEO: What Wears Inside A Decoupler Pulley?

We show you what’s inside both OAP and OAD decoupler pulleys. This video is sponsored by Litens.

VIDEO: The Difference Between An OAD, OAP Alternator Pulley

We take a look at what is actually inside of each pulley. This video is sponsored by Litens.

Prestolite Electric Announces New Alternator Line

The Arcade, New York, plant will produce a new line of Leece-Neville IdlePro Extreme 24V 600- and 680-amp alternators.

WAI Unveils Premium Alternators For Heavy-Duty

Company provides immediate access to the most complete new heavy-duty offering available.