No Load Test

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Battery cell caps must be bolted in tightly when charging, measuring voltage or performing load tests.

NOTE: If no load voltage is to be measured with battery installed in vehicle, first disconnect ground strap.

NOTE: Vehicle must not be started or driven with tested battery for at least 2 hours before taking measurements. During this time, DO NOT allow load or additional charge to be applied to battery.

With battery installed, and ignition switched to OFF position, check voltage between battery terminals with voltmeter. If no load voltage is 12.5 volts, or higher, battery is okay. If no load voltage is lower than 12.5, recharge battery, and repeat procedure. If battery voltage is still less than 12.5 after charging battery, replace battery.