Internal lights from leisure battery?

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Internal lights from leisure battery?

Postby Westy123 » 13 Feb 2018, 12:35

Apologies if this has been raised elsewhere. I have a 1986 Westy, and want to run the internal lights from the leisure battery rather than the vehicle one. The 15A fuse in position 3 seems to run them (plus stereo and 12v socket I think). Is there any reason why I shouldn't just remove the fuse, and run a feed, with inline 15A fuse, from the leisure battery + terminal and connect to the top slot of the now vacant position 3? Not sure if I have missed something vital! Thanks.
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Re: Internal lights from leisure battery?

Postby Mocki » 13 Feb 2018, 15:59

no, no reason at all, infact its a common fix....
just make sure nothing else for the actual vehicle is on that fuse ( early vans have brake lights on the same fuse, and whilst thats not really a issue, it is worth noting )
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Re: Internal lights from leisure battery?

Postby ZsZ » 13 Feb 2018, 16:37

in late models behind the fuse panel somewhere there is hanging a 2pin white connector. That connector has a red wire going into one of the pins and if you have rear screen defroster/defogger then green going to the other. Thatred wire is for the internal lights so you can plug a fused wire from the leisure into that.
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Re: Internal lights from leisure battery?

Postby Westy123 » 13 Feb 2018, 16:57

Brilliant. Thanks for your advice. Have been meaning to address this issue for about 3 years!
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Re: Internal lights from leisure battery?

Postby ZsZ » 13 Feb 2018, 17:00

I found my pic. That T shaped yellowish white connector with the red wires in the left of the pic is the one.
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Re: Internal lights from leisure battery?

Postby Westy123 » 13 Feb 2018, 18:24

Thanks for that - will have a look.
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Re: Internal lights from leisure battery?

Postby 937carrera » 13 Feb 2018, 21:19

Very clear instructions and diagrams here.

https://vwt25.blog/2016/05/19/rewiring-stereo-to-leisure-battery/

I went for option 2, took about 20 minutes and now we can listen to the radio for hours without worrying about flattening the vehicle battery :ok
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Re: Internal lights from leisure battery?

Postby Westy123 » 13 Feb 2018, 21:51

That's fantastic! Thanks. Wasn't sure if I was missing something. That will save a lot of worry when we're without a hook up. Cheers everyone.
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Re: Internal lights from leisure battery?

Postby Westy123 » 20 Feb 2018, 10:54

Have tried it - but it does't==n't work - gutted! Have double checked everything, and all is as it should be - any thoughts as to what could be the issue?? I have run a cable, with inline 15A fuse from the positive terminal of the leisure battery, and joined this to the top slot of the fuse holder for fuse no 3. Have I missed something? Internal lights and radio don't come on, but the 12V socket near the dash does work!!
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Re: Internal lights from leisure battery?

Postby 937carrera » 20 Feb 2018, 12:20

Let's make sure that the radio works normally - I'm assuming you don't have a multimeter.

Remove / insulate the new 12V feed at the fusebox
Put the original fuse back in position
Radio / interior lights working ?

If yes, then great equipment is fine, there's a problem with the linkwire.
If no, then it looks like a mod has already been made to the van wiring.

My memory tells me that the link wire should go in the bottom slot, but James's instructions are usually spot on. I'll be with my T25 later today so I'll check mine and confirm my brain fade..
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Re: Internal lights from leisure battery?

Postby Westy123 » 20 Feb 2018, 12:47

Thanks! Radio and interior lights working fine with fuse back in!
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Re: Internal lights from leisure battery?

Postby Westy123 » 20 Feb 2018, 14:07

You're a genius! Bottom slot, and all is well. Thank you!
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Re: Internal lights from leisure battery?

Postby 937carrera » 20 Feb 2018, 15:02

Westy123 wrote:You're a genius! Bottom slot, and all is well. Thank you!


:oops: :?: :?: :?: Just checked mine and the spade is in the top, so I was going to claim brain fade.

Something funky is going on. The feed to the fuse is at normally at the bottom, with the feed from the fuse being out of the top. This suggests that your fusebox is wired differently (feed at the top) from factory to me and James.

The reason I didn't suggest just trying the bottom slot was because what I thought would happen is that you would connect the leisure and start batteries together at fuse 3, which wouldn't be a good idea.

I just looked at my air cooled T25 as a check and that has the older cartridge fuses, so not comparable.

Can you do me a favour and set up a test bulb arrangement, disconnect your new feed, and try with the bulb taking a feed from the bottom and top slots. The bulb should only light up in one position, it's the other you should be connecting the leisure battery feed to.
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Re: Internal lights from leisure battery?

Postby Westy123 » 20 Feb 2018, 15:40

Will do. In the mean time, interior lights work with vehicle battery disconnected, and feed from leisure battery to the bottom slot.
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Re: Internal lights from leisure battery?

Postby 937carrera » 20 Feb 2018, 15:50

Hmm, seems OK then, I'm just a tad confused :roll:
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