BMW 3: High-voltage Battery Unit
BMW 3 Series G20 (2018-2026) Training manual / High-voltage Battery Unit
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Overview
With the G20 PHEV the already familiar Generation 4.0 high-voltage battery
unit with the designation
SP41 is used. The lithium-ion battery has the same basic design as the
Generation 3.0 SP06 high-
Technical data
The high-voltage battery unit of the G20 PHEV is manufactured by BMW itself
in Dingolfing /Germany.
The cells of the high-voltage battery unit are supplied by the Korean company
Samsung SDI. T
Equipotential bonding
The low-resistance connection between the housing of the high-voltage battery
unit and ground is
a crucial prerequisite for the fault-free function of the integrated isolation
monitoring. This is wh
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Service requirements
Concept
The function displays the service requirements
and the corresponding maintenance scopes.
General information
After switching on drive-ready state, the instrument
cluster briefly displays available driving distance
or time to the next scheduled maintenance.
A service advisor can read out the
Voltage supply
The 12 V vehicle electrical system of the G20 PHEV is essentially the same as
the electrical system of
the G20. The main difference lies in the fact that the power supply is no longer
by the alternator, but
by the high-voltage electrical system. The high voltage of the high-voltage
battery u
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