61 20... Battery charging
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If a normal or quick charger is used to charge the battery, the battery must be disconnected from the vehicle electrical system and removed. This prevents damage to paintwork and upholstery.
Ideally, battery charging is performed with BMW-approved charging computers, refer to
SI 2 03 98 350 and
SI 2 06 02 854.
IMPORTANT:
In order to prevent malfunctions on the intelligent battery sensor (IBS), the charging terminals in the engine compartment must be used without fail on vehicles with IBS (from E60). On other vehicles, it is recommended that the charging terminals in the engine compartment are used.
IMPORTANT:
Before charging the battery while it is installed, first carry out a CLOSED-CIRCUIT CURRENT TEST . If here the voltage is 10 V or less, one or more of the cells may be faulty or the entire battery may already be damaged. In this case, always remove the battery as escaping gases during charging could damage the interior equipment and trim. Attempt to regenerate faulty cells with low charging current.
If necessary, open existing plugs on the individual cells.