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| Battery charger -VAS 5906- |
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| Battery chargers -VAS 5095A-, -VAS 5900-, -VAS 5903-, -VAS 5904- and -VAS 5906- charge without current and voltage peaks. Batteries can therefore also be charged when installed. Safety precautions must be observed when doing so. The chargers have a back-up function enabling them to supply power to on-board circuits. |
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| If electrical equipment has to be switched on periodically when performing work on the electrical system and for the „Guided Fault Finding“ mode, the battery must be charged using a charger with back-up function so as not to damage the battery → Chapter. |
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| Battery temperature must be at least +10 °C. |
WARNING | Risk of explosion due to naked flames, fires and smoking. |
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| Sealing plugs of batteries which are not maintenance-free must be firmly screwed in. |
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| Ensure good ventilation. |
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| A highly inflammable gas is given off when batteries are charged. Smoking and naked lights are consequently not allowed in rooms in which batteries are being charged. |
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| Observe safety regulations of manufacturers of battery charger and battery. |
| Risk of explosion due to a discharged battery with „magic eye“. |
| The battery must NOT be checked or charged if the indicator of the „magic eye“ is colourless or yellow. Do NOT boost start the vehicle. There is a risk of explosion when checking or charging the battery or boost starting the vehicle. The battery must be renewed. |
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Caution | Risk of damage to valve-regulated lead acid or AGM batteries. |
| Valve-regulated lead acid or AGM batteries may only be charged up to a limited voltage. |
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| Switch off ignition and take out ignition key. |
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| Switch off all electrical equipment. |
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| On vehicles without battery monitor control unit -J367- or energy management control unit -J644-, clamps of battery charger can be connected to battery terminals or remote positive terminal and remote earth terminal in engine compartment. |
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| On vehicles with battery monitor control unit -J367- or energy management control unit -J644-, black clamp „–“ must not be connected to negative battery terminal, but to remote earth terminal in engine compartment or to earth stud of energy management control unit -J644-. |
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| After connecting charging clamps, plug in mains connector of battery charger. |
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| Switch on battery charger. |
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| If necessary, set charging current at battery charger according to battery capacity. |
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| The charging current should be around 10 % of the battery capacity (so for a 60 Ah battery around 6 A). |
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| Unplug mains connector of battery charger. |
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