The Eruo5 and Euro6 engines mean that alternators no longer put out a regulated 13.8 volts to charge the battery. Now, we have smart alternators that vary the voltage to improve efficiency... We are going to need a different type of charger, a DC-DC charger... This video shows you how to install an AGM battery into the VW T5/T6 van and a future video will show you how to wire up the CTEK charger.
