Booster with isolating relay, so that sufficient voltage reaches the battery charge even with long cable runs. The battery is optimally charged during driving and a drop in the charging voltage is prevented. The device maintains the charging voltage at a constant 14.2 volts. Developed for caravans: Power is only taken when the engine is running. Discharge of the caravan battery by leakage currents is avoided. Simple installation due to integrated isolating relay.
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