DEFENDER2.NET - View topic - Main/Aux battery lighting Question

↓ Advertise on Defender2 ↓

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Map · Calendar · Profile · Donate · Register · Log In

Home > Technical > Main/Aux battery lighting Question

Page 1 of 1

Print this entire topic ·

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

Main/Aux battery lighting Question

I am running a LED Bar from an AUX battery, with a simple on/off switch, this will be used when setting up camp and general illumination. I would also like to have an override and have it work inconjunction with the main beam.

There is a problem here, I do not want to join main and aux batteries via the lighting curcuit.

Here is my proposed solution, using a relay to isolate the 2 feeds

Question: Should the RED wire come from the full beam feed or the full beam Switch ?

Click image to enlarge

7th Aug 2012 6:38am

BigRuss

Member Since: 15 May 2010
Location: Norfolk
Posts: 2785

2010 Defender 110 Puma 2.4 USW Santorini Black

I would say the wire should come from the switch to activate the relay when you select full beam. Russell
2011MY 110 XS USW Black

7th Aug 2012 7:02am

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6133

I would use a 3 way switch (on/off/on) to control the LED bar relay

One of the "on"s will be fed from the aux 12v battery (as well as the main feed for the LED lampbar)

The other "on" just comes directly from the main beam feed.... doesn't really matter where you take the feed from, either the headlights themselves or the back of the switch... it's all the same feed.

The LED bar 3 way switch will isolate the AUX and MAIN battery feeds, as the main beam feed (when switched to "main" will only energise the coil then go to earth) OR the AUx battery will energise the relay... the two will never be connected, thus:

Click image to enlarge

The light blue wires is the "feed" from the cars main beam circuit onto your 3 way switch for the LED bar

and don't forget a fuse!!!!!!

7th Aug 2012 7:12am

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

thanks Guys, DJ - I like that soultion, simple and no more relays etc - I'll go find a nice switch

7th Aug 2012 7:22am

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6133

Carling do a 3 way on-off-on, I've got one on the 110 running the rear lights ("on", "off" and "reverse")

7th Aug 2012 7:29am

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

MobileCentre have just the switch I need - going to call Tim now

7th Aug 2012 1:45pm

Page 1 of 1

All times are GMT

Jump to

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum