| No load voltage measurement |
WARNING | The battery plugs must be screwed in tightly when charging, measuring voltage or performing load tests. |
| Ensure that following notes are observed otherwise correct measurements can not be guaranteed. |
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| Special tools and workshop equipment required |
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| Digital multimeter -V.A.G 1315 A- or |
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| Mini tester -V.A.G 1362- or |
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| Hand multimeter -V.A.G 1526- or -V.A.G 1526 A- |
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| If no load voltage measurement is carried out with the battery installed in the vehicle then it is absolutely necessary to disconnect the earth strap. |
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| The vehicle must not be started or driven with the battery that is to be tested for at least 2 hours before making the measurements. |
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| The battery must not be loaded by connected consumers for at least 2 hours before making the measurements. |
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| The battery must not be charged for at least 2 hours before making the measurements. |
| Check the battery voltage in a no load condition as follows: |
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| With battery installed and ignition switched off check voltage between terminals with test unit. |
| If the measuring unit displays a voltage of 12,5 V or greater the battery is OK. |
| The battery no load voltage must at no time drop below 12.5 V if this is the case then recharge battery immediately → Chapter. |
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