Tam &Toby do Europe ...Take two

OK back to the boring electrics stuff

I'm not sure i know how to work this clamp meter properly but if I am then theres something not right

But heres some pics and hopefully Lenny HB and tonyidle can make sense of it

Starter battery cable to ebl
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cable from ebl to habitation battery
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one side of wires to 50amp fuse under bonnet.
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other side of fuse
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Big difference...batteries currently at 84% panel shows 6 -7 amps going in
 

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Not got a clamp meter, but i think the cable to be measured should go inside the hole the jaws make, not be gripped by the jaws as they close. May get better readings then.
 
The cable under test needs to pass through the loop (as if it was a padlock around the cable). It will be grossly inaccurate (meaningless) the way you have it. Try again :giggle: .
 
Ok that makes a difference

Right then under bonnet at the big fuse

The two heavy wires with 50amp fuse has 14+ amps passing through them ...the same either side 20amp fuse

The two heavier wires ...the one going to ebl from starter bsttery has only 7.7amps passing either side of 50amp fuse

Both wires connected to battery with same nut

Going to take them off and check connectikn

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Ok so I got a little excited for a minute as I thought id found the problem .....but no luck
However....as you can see here im getting 12-14amps running through this other wire but only 6- 8amps through the heavier one going to ebl

Why?

I've undone bolt cleaned it up put copper grease on and retightened it

Why am I getting low amps ....it should be way up
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Even weirder if I take the fuse out I get no amps whatsoever ....but its the cable from the battery

Its almost like its running in reverse
 
The thinner of the two red wires and the yellow wires go in to the top of the ebl at bl2 which i assume is the feed for the fridge as if I switch the fridge off I then get zero amps through that cable.

And if i switch off fridge the amps rise in the other cable from 5.8 to 7.1amps

So if I understand correctly the amps only flow when there's demand is that correct?

So the problem would be whatever creates the demand is not demanding enough ?


The current seems to be the same from battery in to ebl and back out at around 5.8a while fridge is on and 7.1a when fridge is off

Fridge seems to be getting plenty at around 14amps

But batteries are getting not very much
 
Last edited:
I can't see the reading in the 2nd pic but I assume the 14 amps is from the alternator to the starter battery.
The cables with the 50 amp fuse are starter battery to EBL so if there is a fault with the EBL relay that would explain the lower current and zero current with the fuse removed is correct.

Take out the 50 amp fuse and with the heavy jump lead you have been given connect the starter battery to the leisure battery and measure the current in that lead.

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Lenny HB said:
I can't see the reading in the 2nd pic but I assume the 14 amps is from the alternator to the starter battery.
The cables with the 50 amp are starter battery to EBL so if there is a fault with the EBL relay that would explain the lower current and zero current with the fuse removed is correct.

Take out the 50 amp fuse and with the heavy jump lead you have been given connect the starter battery to the leisure battery and measure the current in that lead.
Click to expand...
No the 14amp is on the wire that goes to the ebl from the fridge.

The wire from battery to ebl for charging is only 5.8amp either side of the fuse

See my edited post above
 
Ebl101. Bl2. Has 5 pins
1. 20a feed from starter batt for fridge
2. Neg sense wire living area batt
3 2amp d+ signal input
4. Neg for fridge from starter batt
5. 2amp sense wire living batt +ve

Could yellow be the fridge wire supply for heater element to pin 1. ??
 
SandraL said:
Ebl101. Bl2. Has 5 pins
1. 20a feed from starter batt for fridge
2. Neg sense wire living area batt
3 2amp d+ signal input
4. Neg for fridge from starter batt
5. 2amp sense wire living batt +ve

Could yellow be the fridge wire supply for heater element to pin 1. ??
Click to expand...
Theres every chance ...it does have a small 2amp fuse
 
Val 2 dogs said:
Right enough boring electrical stuff u til you tell us how Jade is today and give us a picture.🙄 pretty please.
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Wimmen!!!!

Can never concentrate on the important stuff ....jade is fine ..good as new
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Lenny HB said:
I can't see the reading in the 2nd pic but I assume the 14 amps is from the alternator to the starter battery.
The cables with the 50 amp fuse are starter battery to EBL so if there is a fault with the EBL relay that would explain the lower current and zero current with the fuse removed is correct.

Take out the 50 amp fuse and with the heavy jump lead you have been given connect the starter battery to the leisure battery and measure the current in that lead.
Click to expand...
Ok so ive run a cable from the starter battery to the hab battery and it does initially start at near 10amps but drops to around 7amps within a few minutes

However the batteries are at 86% so maybe not low enough for the higher amps


I'll let the batteries run down again tomorrow to around 65% and will check the amps running again tomorrow
 
Might be worth running a cable between the negative poles of starter and leisure batteries as well and check if current to leisure battery rises.
Same test as suggested for positive poles as suggested earlier.
 
Nothing to do with the charging problem but I realised how and why the fridge is wired like it is.

Tam's fridge has a relay on the back that switches the 12v but it is still wired via the relay in the EBL the reason for this is so the fridge can be run of the habitation batteries if required.
 
Thanks for the doggy pics😁. I do believe Jade might possibly be beginning to look a tiny bit rotund? Couldn't really see well enough from those pics but might have to start nagging you about that soon if she is. Seriously, I am so pleased she is safe and well.
Now dont waste any more time reading this , get on with some work, money doesn't grow on trees and you have two hungry mouths to support lol. 😃🤣
 
Northernraider said:
Ok so ive run a cable from the starter battery to the hab battery and it does initially start at near 10amps but drops to around 7amps within a few minutes

However the batteries are at 86% so maybe not low enough for the higher amps


I'll let the batteries run down again tomorrow to around 65% and will check the amps running again tomorrow
Click to expand...
Just thinking out loud, but what the negative connection on the hab batteries like? If that's not very good, wouldn't that fool the alternator in thinking it was more charged than it is?

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Val 2 dogs said:
Thanks for the doggy pics😁. I do believe Jade might possibly be beginning to look a tiny bit rotund? Couldn't really see well enough from those pics but might have to start nagging you about that soon if she is. Seriously, I am so pleased she is safe and well.
Now dont waste any more time reading this , get on with some work, money doesn't grow on trees and you have two hungry mouths to support lol. 😃🤣
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If rotund means fat then yeah she's been getting spoiled by grandma and also steals milos treats.
 
Oh dear! That's not healthy and if you are eventually headed anywhere warm will make things more uncomfortable for her. 😡
 
What is it a piece of PVC angle glued on?
Looks good.

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It might just be that she is maturing (I can't remember what age she is now) and filling out into a grown-up doggy.
As long as she doesn't have the same inclinations as her hooman dad!😁
 
Lenny HB said:
Nothing to do with the charging problem but I realised how and why the fridge is wired like it is.

Tam's fridge has a relay on the back that switches the 12v but it is still wired via the relay in the EBL the reason for this is so the fridge can be run of the habitation batteries if required.
Click to expand...


Right so this morning batteries are at 67%

Started van ...initially 12.8amps ....dropped in less than a minute to 7amps


Cable from battery to 50amp fuse ....6.8amps

Cable from fuse to ebl 8.9amps


Inside van .....starter cable going in to ebl 6.8amps

Cable coming from ebl to hab batteries 8.8amps



Run jump lead from starter battery to leisjre battery .. 7amps


So im lost

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