Schaudt battery to battery

[3crispies]

Found this earlier hidden behind a panel, is this a battery to battery charger?. Also more importantly I assume it should have an Led and Ebl is wired reversed polarity !!.
Have 12v on SB but nothing on Ebl side and this was manufacturer fitted new.

 

[eurajohn]

EU built vans usually use blue as +

 

[3crispies]

EU built vans usually use blue as +

Thanks but should there be a voltage across Ebl terminals and blue indicator be lit but photo was in park so no vehicle of ehu?

 

[Lenny HB]

I suggest you download the instructions and read them.

 

[3crispies]

I suggest you download the instructions and read them.

thanks doing that as we speak, it was more the + and - connections

^{_{Subscribers  do not see these advertisements}}

 

[brynric]

Different wiring diagrams match your van set up. The handbook points out the differences. On mine the two on the left (eingang) are from the van and the 3 ausgang plug into the rear of the EBL.
This is from a website IVT
”
The Schaudt Booster WA121525 is designed to charge 12 V lead-acid, lead-gel, AGM and lithium batteries optimally during the journey (regardless of the generator voltage). The use of a booster is absolutely necessary for light engines with energy-saving charging characteristics (Euro 6), since the charging voltage fluctuates very strongly (12.6 - 15 V). In the case of conventional alternators, the second battery charging is also improved by using the battery booster WA 121525.

For AGM batteries, which require a charging voltage of 14.7 V, the use of a booster is indispensable. The Booster WA 121525 is a switch mode up / down converter that compensates for the fluctuating alternator voltage and provides a high charging current.”