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F48�General�Vehicle�Electronics

2.�Voltage�Supply

2.2.1.�Battery

AGM�battery

Depending�on�the�equipment�package,�either�a�70Ah�AGM�battery�or�80Ah�AGM�battery�is�installed

in�the�engine�compartment�in�the�F48.

2.2.2.�Intelligent�battery�sensor

Intelligent�battery�sensor

Index Explanation

1 Negative�battery�terminal

2 Intelligent�battery�sensor�(IBS)

3 Battery�earth�lead

The�intelligent�battery�sensor�(IBS)�records�the�following�data�of�the�battery:

• Voltage

• Current

• Pole�temperature

The�IBS�performs�the�calculation�and�the�evaluation�of�the�information.�The�results�are�then�forwarded

to�the�superior�control�units�via�local�interconnect�network�bus�(DME�and�BDC).

BMW F48 User Manual

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