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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 276 (General Electrical System - Repair) >> Battery Pt. 2 >> 61 21 028 Charge battery

61 21 028 Charge battery

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IMPORTANT: Lead-acid battery, AGM battery:
To prevent the intelligent battery sensor from malfunctioning, use the charging points in the engine compartment.

OBSERVE INSTRUCTIONS ON INTELLIGENT BATTERY SENSOR/BATTERY ELECTRONICS .

NOTE: Use BMW-recommended charging computers to charge the battery.

Pay attention when charging the lithium ion battery! 

Risk of damage! 

The charging voltage that is generated by existing chargers that are designed for the lead-acid or AGM battery is too high for the lithium ion battery! 

This excessive charging voltage will result in damage to the lithium ion battery! 

Therefore, the charging voltage of existing chargers must be reduced before charging a lithium ion battery: