Protecting your Starter Battery

bartman

Full Member

Messages
30
Wildebus, you might want to be aware that the link for installation instructions on your web page appears to be dead - I don't think it's an issue with my PC and I tried different browsers.
Also, what length of cable is supplied? I have in mind that my leisure batteries are towards the rear of my vehicle!
 

wildebus

Full Member

Messages
2,538
Wildebus, you might want to be aware that the link for installation instructions on your web page appears to be dead - I don't think it's an issue with my PC and I tried different browsers.
Also, what length of cable is supplied? I have in mind that my leisure batteries are towards the rear of my vehicle!
Hi bartman, thanks for the heads up. Appreciated and link now corrected.
I think I put the item up whilst we were waiting for the released product and PDF and forget to update it!

By default, I supply 50cm cables. I would install a Battery Maintainer in close proximity to whatever split charge Relay, B2B or other device you have for alternator charging, whereever that device may be. Reason being that there will be a connection to both the Starter battery and the Lesiure battery close together so it makes installation easy. That way there is no need to run a new long cable to the engine bay for example (you can do so if you want, but there is no real advantage to do so for this kind of device).
 

bartman

Full Member

Messages
30
Hi bartman, thanks for the heads up. Appreciated and link now corrected.
I think I put the item up whilst we were waiting for the released product and PDF and forget to update it!

By default, I supply 50cm cables. I would install a Battery Maintainer in close proximity to whatever split charge Relay, B2B or other device you have for alternator charging, whereever that device may be. Reason being that there will be a connection to both the Starter battery and the Lesiure battery close together so it makes installation easy. That way there is no need to run a new long cable to the engine bay for example (you can do so if you want, but there is no real advantage to do so for this kind of device).
OK thanks, I thought that would be the case. I would need to find out where the relay is. I'm assuming that as I have never fitted an additional one, there will only be one relay, the one which sends a charge from the alternator to the leisure battery. Although thinking about it, presumably there's another one which knocks out the 12v supply in the hab area and allows the fridge a 12v supply when the ignition is on?
 

wildebus

Full Member

Messages
2,538
OK thanks, I thought that would be the case. I would need to find out where the relay is. I'm assuming that as I have never fitted an additional one, there will only be one relay, the one which sends a charge from the alternator to the leisure battery. Although thinking about it, presumably there's another one which knocks out the 12v supply in the hab area and allows the fridge a 12v supply when the ignition is on?
I could supply a cable long as you want really. If for example you fitted a maintainer by the batteries at the rear, you could run a cable to the cab area and pick up a starter battery 12V from say the dash cigar lighter (if that stays live without ignition - most vans that is the case). The only thing you would want to take into account extra is a thicker cable (probably use 2.5mm2) and have the connection fused at source due to the cable run length for safety (the normal cabling needs no fusing due to short length and internal protection built into the unit).

But any virtually any non-ignition source will work (when I had to temporarily keep my bad starter battery up, I just used a handy courtesy light 12V line for a while to connect to the leisure battery whilst building out my camper).
 

bartman

Full Member

Messages
30
I could supply a cable long as you want really. If for example you fitted a maintainer by the batteries at the rear, you could run a cable to the cab area and pick up a starter battery 12V from say the dash cigar lighter (if that stays live without ignition - most vans that is the case). The only thing you would want to take into account extra is a thicker cable (probably use 2.5mm2) and have the connection fused at source due to the cable run length for safety (the normal cabling needs no fusing due to short length and internal protection built into the unit).

But any virtually any non-ignition source will work (when I had to temporarily keep my bad starter battery up, I just used a handy courtesy light 12V line for a while to connect to the leisure battery whilst building out my camper).
Thanks again for that info. I would still like to find out where the relay is, and thereby avoid the long cable run if possible. Also a good idea to know where is is in the event of it failing. I've had a good look under the bonnet (I had expected to find it near the battery) but can't see anyhing like it. I suppose it could be behind the battery, between it and the inner wing. My investigations are continuing, but I haven't found anything helpful online so far
 

wildebus

Full Member

Messages
2,538
Thanks again for that info. I would still like to find out where the relay is, and thereby avoid the long cable run if possible. Also a good idea to know where is is in the event of it failing. I've had a good look under the bonnet (I had expected to find it near the battery) but can't see anyhing like it. I suppose it could be behind the battery, between it and the inner wing. My investigations are continuing, but I haven't found anything helpful online so far
It does vary depending on how installed, but should be a fuse holder on a flying lead between the relay and both of the battery connections if that helps to trace it through? (you wouldn't tend to get a similar fuse holder on original vehicle electric, although of course, there will always be an exception to that posted up of course :) )
 
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