Measurement Of Closed-Circuit Current

Information 

• Compared with the value from > 9818 - PIWIS Tester II, the battery voltage can be measured using a handheld multimeter.
• Proceed as follows: 

Information 

The open-circuit voltage measurement should be read out using > 9818 - PIWIS Tester II in the Gateway control unit by selecting Energy management, Quick closed-circuit current measurement in the menu.

1. Switch off ignition and remove ignition key.
2. Disconnect ground strap on the battery.

   Information 

   • After charging and waiting for at least 2 hours, during which time the battery should neither be loaded nor charged:
3. Measure the battery voltage with a hand-held multimeter.

The battery open-circuit voltage should not fall below 12.5 V.

If the hand-held multimeter shows 12.5 V or more, the battery voltage is OK.

If the hand-held multimeter shows a battery voltage below 12.5 V: Charge the battery.