Leisure battery extra fuse box questions

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troglodisme
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Leisure battery extra fuse box questions

Post by troglodisme »

I am installing an extra fuse box for my leisure battery and have made a diagram to make sure I know what I am doing. Could you please take a look a let me know what you think..

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Questions:
- Is it ok to short the ignition amplifier wire with on the main 12v line as I am not going to control it from the van's key switch?
- The 3 pin toggle switches have very bright built in leds. How can I reduce their power without also reducing the power to the amp/fan/usb outlets? Can I have a resistor on the ground line?
- How do I know when I am over loading my leisure battery? Should I be monitoring how much current is been drawn somehow? 

Thanks
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Mocki
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Re: Leisure battery extra fuse box questions

Post by Mocki »

Circuit looks fine for what it is .

yes adding a resistor to the -12vdc to the switch for the warning light will work to some extent , depending on what the illumination is provided by , it may not work with some leds , may just be better to defuse the light output with opac paint or self adhesive tape ? 

as for over loading you battery , I assume you mean flatterening it ?  You may add a volt meter , or a low voltage cut off device 

https://www.ebay.co.uk/itm/253014218917

if it’s a three way fridge the 12v should not be wired to a leisure battery ( other than the ignition if it has one ) it should be direct to the main battery via a alternator triggered relay 
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bigherb
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Re: Leisure battery extra fuse box questions

Post by bigherb »

Rather than daisy chain the inputs use a 4 or 6 way single input fusebox. https://www.ebay.co.uk/itm/32V-4-Way-Bl ... SwZe9bM3E5
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troglodisme
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Re: Leisure battery extra fuse box questions

Post by troglodisme »

Thanks, that's much better! 

What about ground? Kind of long to daisy chain all those too. Is the ground from the leisure battery shared with the main battery? In other words can I use the ground from the chassis to complete the circuits shown here? :shock:

 
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bigherb
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Re: Leisure battery extra fuse box questions

Post by bigherb »

troglodisme wrote:
12 Jul 2020, 13:16
Thanks, that's much better! 

What about ground? Kind of long to daisy chain all those too. Is the ground from the leisure battery shared with the main battery? In other words can I use the ground from the chassis to complete the circuits shown here? :shock:

Yes, that is the normal way of doing it. Leisure battery and starter battery both earthed to the body.
 
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