Sprinter 906
E36
Cutoff relay for additional battery
Details & Technology
The relay is installed on the charge line to the auxiliary battery. It separates the starter
battery consumers from the auxiliary battery consumers. When the engine is running, the
relay allows both batteries to be charged or discharged simultaneously.
Benefits & Arguments
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Starter battery cannot be discharged by auxiliary consumers
The cutout relay prevents the starter battery being drained by consumers connected to the
auxiliary battery. It also prevents the auxiliary battery being drained by the standard
consumers such as the starter or fan.
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