Configuring the Resistance of the Battery Cable

Qualified person

You can optimize the battery management if you set the resistance of the battery cable in expert mode.

Designation of the cable

The resistance of the battery cable is the sum of the resistance of cable 1, the battery fuse and the resistance of cable 2.

The basic procedure for changing operating parameters is explained in another section ( > Changing Operating Parameters).

Procedure:

R_Cu(l, A) = resistance of the cable

ρ = specific resistance for copper (ρ = 0.018^{Ω mm²⁄m})

l = total length of the conductor (outward conductor + return conductor = twice the cable length) in m

A = conductor cross-section in mm²

R_BatRes = R_{cable 1} + R_{battery fuse} + R_{cable 2}

R_BatRes = total resistance of the battery cable

R_{Cable 1} = Calculated resistance of cable 1

R_{Cable 2} = Calculated resistance of cable 2

R_{battery fuse} = total resistance of the battery fuse (see manufacturer documentation)

Select Battery > Battery.
Select the parameter Line resistance of battery connection and set this to the resistance of the battery cable.