eberspacher sensors?
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Mocki
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rob, you need to "beef up" the wires between the battery and the ebber, you are getting voltage drop because the wire is too "lossy", its a standard problem with the original ebber loom in a westy..... double the thickness of the feed wires.
Steve
tel / txt O7947-137911
________________
1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Auto Caravelle TS TinTop Camper
tel / txt O7947-137911
________________
1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Auto Caravelle TS TinTop Camper
I would love to do that Mocki but its a lot of wire and a pain in the aris to do, remove all interior basically.
I was thinking of doing what dave said in a previous post and fit a new big leisure to the BBB(battery charger) thus having a short length to the Eber and a low current draw between the added and original leisure batterty connections.
Would I have any problems using a leisure and a starter wired together or should I keep both leisures?
Thinking of the Elecsol 100ah under the drivers seat and a whopper under the bench seat.
but I'm also worried if the alternator would surfice.
Diesel so starters in the engine compartment.
I was thinking of doing what dave said in a previous post and fit a new big leisure to the BBB(battery charger) thus having a short length to the Eber and a low current draw between the added and original leisure batterty connections.
Would I have any problems using a leisure and a starter wired together or should I keep both leisures?
Thinking of the Elecsol 100ah under the drivers seat and a whopper under the bench seat.
but I'm also worried if the alternator would surfice.
Diesel so starters in the engine compartment.
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irish.david
- Registered user
- Posts: 54
- Joined: 31 Jul 2006, 04:14
- 80-90 Mem No: 3347
- Location: Belfast
To be honest, this sounds more like a battery charging problem at the moment. It's not likely to be the eber cable losses because cable losses cause a voltage drop at the equipment and not at the battery. The battery indicator on the kitchen unit measures the battery voltage. If it was a eber cable loss problem the battery voltage wouldn't drop too much while the voltage a the eber would shoot down, possibly causing it to fail on the dreaded low voltage cutout.
There are a few things you can try to figure out where the problem is. First is to disconnect the earth strap from the aux battery and measure the voltage on the terminals. This is a rough guide to your batteries open circuit voltage. Then reconnect the earth wire, start the van and measure the voltage on the aux battery with no electrical equipment in the van running. This is the charging voltage with no load. The minimum figure that this should be has been discussed a lot on this forum and most people say about 13.5v. Personally this is a bit low for me as it'll probably drop way off under load but 13.5v could be considered an absolute minimum. Next thing is to start the eber and watch the battery voltage when the eber's starting. Chances are it's going to drop under the open circuit voltage that you measured early meaning that, even with the engine running the battery is discharging due to cable losses between the alternator and aux battery. After the eber goes through it's startup the voltage should increase to back above the open circuit voltage. If it doesn't then you've got a problem.
If the voltage in the no load test was under 13.5 or it really dipped when you started the eber you might have to consider replacing some of the cabling in the charging circuit.
You could confirm this by removing the aux battery and charge it up overnight using a mains charger. Then refit it and try the eber test again. If it doesn't drop to red and you know the batteries good then it probably isn't getting charged properly in the van.
Dave
There are a few things you can try to figure out where the problem is. First is to disconnect the earth strap from the aux battery and measure the voltage on the terminals. This is a rough guide to your batteries open circuit voltage. Then reconnect the earth wire, start the van and measure the voltage on the aux battery with no electrical equipment in the van running. This is the charging voltage with no load. The minimum figure that this should be has been discussed a lot on this forum and most people say about 13.5v. Personally this is a bit low for me as it'll probably drop way off under load but 13.5v could be considered an absolute minimum. Next thing is to start the eber and watch the battery voltage when the eber's starting. Chances are it's going to drop under the open circuit voltage that you measured early meaning that, even with the engine running the battery is discharging due to cable losses between the alternator and aux battery. After the eber goes through it's startup the voltage should increase to back above the open circuit voltage. If it doesn't then you've got a problem.
If the voltage in the no load test was under 13.5 or it really dipped when you started the eber you might have to consider replacing some of the cabling in the charging circuit.
You could confirm this by removing the aux battery and charge it up overnight using a mains charger. Then refit it and try the eber test again. If it doesn't drop to red and you know the batteries good then it probably isn't getting charged properly in the van.
Dave