GLI L4-2.0L Turbo (BPY) (2008)
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If battery is discharged by a consumer during charge retention, the battery charging unit VAS 5903 automatically supplies the corresponding
charge.
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Charge retention can be performed without time restrictions.
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The battery can be used constantly.
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Observe the maintenance notes of the battery manufacturer.
If the battery is fully charged, the battery charger VAS 5903 begins to sustain the charge.
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Proceed as when charging the battery.
With a charge status of 100 %, all bars are indicated on the display.
Severely Discharged Batteries
Severely Discharged Batteries
CAUTION:
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Risk of injury. Observe warning notes and safety precautions.
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Batteries that have a colorless or light yellow visual indicator must not be tested or charged. Jump starting must not be used
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There is a risk of explosion during testing, charging or jump starting.
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These batteries must be replaced.
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Severely discharged batteries freeze earlier.
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Batteries that have frozen must no longer be used.
For a battery to be indicated as "severely discharged", the resting voltage must be less than 11.6 V.
NOTE:
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Batteries which have not been used in driving operation for a long time, for example in stored vehicles, discharge themselves.
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In severely discharged batteries, the electrolyte consists almost completely of water, because the acid portion has been greatly reduced.
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Severely discharged batteries become sulfated, meaning that the complete plate surfaces of the battery harden.
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The sulfating process may be reversed if a severely discharged battery is recharged immediately.
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If the battery is not recharged, the plates will continue to harden, and the ability to accept a charge will diminish. This results in reduction of
battery performance.
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Check no load voltage.
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Charge the battery.
Charge battery with the battery charger VAS 5095 A.
Charge battery with the battery charger VAS 5900.