Configuring the Resistance of the Battery Cable

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.

Resistance of a single cable:

R_Cu = ρ x l/A

• 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

resistance of total battery cable:

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)

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

Procedure: