The Dispatch | Expert | Scudo Hub

Ricko

Member

From: SW Lancs

Registered: 2017-01-18

Posts: 334

Auxiliary battery charging circuit

Hi
I have bought a 30A auto switching combination relay (smart charging relay) to charge an auxiliary battery in the back of my van. The auxiliary battery will run some internal led lighting.
I have connected the 12v connection on the unit to the battery positive, and have connected the 0v connection to the vehicle earth (chassis). What connection do I use from the remaining ones (6,4 or 2) to charge my auxiliary battery, and is it a straight forward connection to the auxiliary battery positive?
Many thanks

Ricko

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2004 Citroen Dispatch 2.0 Hdi

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: Auxiliary battery charging circuit

Did it not come with a wire diagram? I take it you were tight and got the Brocott one at 15 quid odds. I went for the slightly dearer one from smartcom what came with the wires and simple wife can do it diagram.  Looks like 2 and 6 is switched on yours. Ill presume that is it cuts out when the battery is charged and the unsitched (4) is for your fridge or coolbox.

Ricko

Member

From: SW Lancs

Registered: 2017-01-18

Posts: 334

Re: Auxiliary battery charging circuit

It came with a diagram but the connections were for the 12S socket, I got it from Towsure. It was connection 2 that was needed for the aux battery.
Cheers

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2004 Citroen Dispatch 2.0 Hdi